4-YEAR DIPLOMA-IN-INGINEERING PROGRAM
REFRIGERATION AND AIR CONDITIONING TECHNOLOGY
SYLLABUS
(COURSE STRUCTURE-2010)
FIFTH & SIXTH
SEMESTER
REFRIGERATION AND AIR CONDITIONING TECHNOLOGY (72)
5th Semester
MARKS
Sl.
Subject
No
code
1.
2.
7251
7252
Electrical Machines in RAC
RAC Circuits and Controls-I
3
3
3
3
4
4
3.
7253
Piping and Duct Works
2
3
3
20
80
25
25
150
4.
7254
3
3
4
30
120
25
25
200
5.
7255
2
6
4
20
80
50
50
200
6.
7142
Commercial and Industrial
Refrigeration
Maintenance of RAC
Equipment
Engineering Mechanics
3
3
4
30
120
25
25
200
7.
5851
Book Keeping
2
0
2
20
80
-
-
100
18
21
25
180
720
175
175
1250
Name of the subject
Total
T
P
Theory
C
Practical
Cont. Final Cont. Final
assess exam. assess exam.
30 120
25
25
30 120
25
25
Total
200
200
REFRIGERATION AND AIR CONDITIONING TECHNOLOGY (72)
6th Semester
MARKS
Sl.
Subject
No
code
1.
7261
2.
Name of the subject
T
P
Theory
C
Practical
Cont. Final Cont. Final
assess exam. assess exam.
30 120
25
25
Total
3
3
4
7262
Advanced Refrigeration and
Air conditioning
RAC Circuits and controls-II
3
3
4
30
120
25
25
200
3.
7263
RAC Plant Operation
2
3
3
20
80
25
25
150
4.
7264
2
3
3
20
80
25
25
150
5.
7165
3
3
4
30
120
25
25
200
6.
5840
Low Temperature
Refrigeration
Fluid Mechanics and
Machineries
Environmental Management
2
0
2
20
80
-
-
100
7.
5852
Industrial Management
2
0
2
20
80
-
-
100
17
15
22
170
680
125
125
1100
Total
200
4-YEAR DIPLOMA-IN-INGINEERING PROGRAM
REFRIGERATION AND AIR CONDITIONING TECHNOLOGY (72)
SYLLABUS
(COURSE STRUCTURE-2010)
FIFTH SEMESTER
7251
ELECTRICAL MACHINES IN RAC
T P C
3 3 4
AIMS
To provide the students with an opportunity to acquire knowledge, skill and
attitude in the area of electrical machines in refrigeration and air conditioning
with special emphasis on:
electrical generator
three phase motor
single phase motor
transformers
power factor improvers
Short description
Generalized treatment of electrical machines, electrical generator, three phase
induction motor, starting methods of three phase motor, single phase motor,
starting methods of single phase motor, performance of single phase motor,
effect of voltage variation on electric motors, transformers and power factor
improvement.
THEORY
1 Understand the generalized treatment of electrical machines :
1.1 State what is meant by electrical machines.
1.2 List the electrical machines and devices used in refrigeration and air
conditioning.
1.3 Mention the classification of electrical machines.
1.4 Describe the basic electromagnetic laws (magnetic field, magnetic force, torque,
electromagnetic induction, etc.)
1.5Mention the classification of electrical AC motors.
1.6Describe the emf induced procedure in a coil rotating in a magnetic field.
1.7 Describe the torque creating procedure in the electrical motors.
2
3
ELECTRICAL GENERATOR
Understand the features of electric generator.
2.1State what is meant by electrical generator.
2.2Mention the types of electrical generator.
2.3Describe the construction of an alternator.
2.4Describe the working principle of an alternator.
2.5Describe the specification of alternator.
Understand the features of three phase induction motor.
3.1Describe the working principle of 3- phase induction motor.
3.2Explain the production of rotating magnetic field in three phase winding and a
three phase supply.
3.3Describe the construction of a squeal Case motor.
3.4Describe the working principle of a squeal Case motor.
3.5Describe the construction of a wound rotor motors.
3.6Describe the working principle of a wound rotor motors.
3.7Describe the maintenance of a three phase motors.
3.8Describe the operation of a squirrel case motor.
3.9Describe the operation of a wound rotor (slip ring) motor.
3.10 Mention the advantages and disadvantages of squirrel case of motor.
3.11 Mention the advantages and disadvantages of slip ring motor.
3.12 Identify the power supply connection of three-phase motor.
4
Understand the starting methods of three phase induction motors.
4.1Mention the purpose of starter.
4.2Identify the different types of starter.
4.3Describe the operation of different types of starter.
4.4Mention the advantages and disadvantages of each type starters.
4.5Describe the speed control methods of three phase motors.
4.6 Mention the specification of a three phase motors.
SINGLE PHASE MOTORS
5
Understand the features of single-phase motor.
5.1Mention the classification of single-phase motors.
5.2Describe the working principle of single phase induction motor.
5.3Describe the working principle of split induction motor.
5.4Describe the working principle of capacitor start induction motor.
5.5Describe the working principle of capacitor run induction motor.
5.6Describe the working principle of two value capacitor type induction motor.
5.7Describe the working principle of split capacitor motor.
5.8Describe the working principle of shaded pole motor.
5.9Mention the applications of different types of single phase motor.
5.10 Describe the methods of speed control of single phase induction motor.
5.11 Mention the specification of a single phase motors.
5.12 Describe the Maintenance of a single Motors.
5.13 Illustrate high performance single phase motors(PTC relay and run capacitor).
6
Understand the Starting Methods of a single phase induction motor.
6.1Explain single phase motor is not self starting.
6.2List the methods of making single phase motor self starting.
6.3Describe standard split phase motor.
6.4Describe the operation of starting relays used in single phase inductor motor.
6.5Describe the starting method of a shucked rotor of a motor.
7
8
Understand the performance of single phase motor
7.1State the relation of pole, speed and frequency.
7.2Describe the torque and speed relation curve of a single phase induction motor.
7.3Compare various types of single phase motor on the basis of torque, starting and
efficiency.
7.4Describe the method of measuring power of a single phase motor.
7.5Describe the method of no load test of single phase induction motor.
Understand the effects of voltage variation on electric motors.
8.1Describe the effect of low voltage on a motor.
8.2Describe the effect of high voltage on a motor
8.3Mention the importance of voltage stabilizer
8.4Describe the method of voltage stabilization
8.5Mention the function of volt guard
8.6Describe the operation of voltage stabilizer and regulator.
8.7Advantage and disadvantage of a voltage variation.
9
Understand the features of transformer
9.1Describe the principle of transformer
9.2State the emf equation of a transformer
9.3Mention the classification of transformer.
9.4Compare the star connected transformer and delta connected transformer.
9.5State the characteristics of transformer oil.
9.6Describe the maintenance of transformer.
9.7Mention the specification of a transformer.
9.8Mention the application of transformer in refrigeration and air conditioning field.
10 Understand the concept of power factor improvement
10.1 Define power factor.
10.2 Mention the importance of power factor.
10.3 Mention the disadvantages of low power factor.
10.4 Describe the causes of decreasing power factor.
10.5 Mention the equipment used for power factor improvement.
10.6 Describe the methods of improving power factor.
Practical
1 Study the alternator
1.1 Identify the different components of an alternator.
1.2 Start the alternator
1.3 Measure voltage, current and frequency.
2 Study a three phase motor connected with a power supply.
2.1 Identify the different components of three phase motor.
2.2 Start the motor with on line starter.
2.3 Measure the voltage and current.
3 Study a three phase induction motor not connected with a power supply.
3.1 Connect the motor with the electric supply using a manual star
delta starter.
3.2 Perform pre starting inspection of a three phase motor.
3.3 Start the motor.
3.4 Check voltage and current.
3.5 Measure the RPM.
4 Study the automatic star delta starting system
4.1 Identify the input and output terminal of the automatic star delta starter.
4.2. Connect the motor with the starter output terminals and power supply.
4.3 Measure the current RPM.
5 Study the reverse rotation of a three phase motor.
5.1 Connect the three phase motor with a triple pole circuit breaker.
5.2 Connect circuit breaker with power supply and start motor.
5.3 Check the motor for direction of rotation.
5.4 Connect the motor for counter rotation.
5.5 Operate three phase motor for reverse and forward motion.
6 Perform the following test of a three phase motor
6.1 Open circuit test
6.2 Short circuit test.
6.3 Insulation test.
7 Study a split phase motor
7.1 Identify the run, start and common terminal
7.2 Test the motor for open circuit and ground.
7.3 Start the motor without a relay.
7.4 Select a correct size of current coil relay for the split phase motor.
7.5 Start the motor with a relay.
7.6 Check matching of the relay with the motor by measuring current.
8 Study the capacitor start and run motor
8.1 Select appropriate capacitor for the motor.
8.2 Connect the potential relay with motor and capacitor.
8.3 Measure starting and running current.
8.4 Check proper function of potential relay.
9 Study the single phase transformer
9.1 Identify the primary and secondary winding of a single phase step down transformer.
9.2 Test for open circuit of the primary and secondary winding.
9.3 Measure the resistance of the transformer winding.
9.4 Measure input and output voltage without load and with load.
10. Study the voltage stabilizer
10.1 Identify the main components of a voltage stabilizer used for refrigerator freezer.
10.2 Connect the stabilizer with power supply.
10.3 Record the delay period.
10.4 Check stabilizer voltage range with a voltage regulator.
REFERENCE BOOKS
1.
2.
3.
4.
5.
Electrical machines by M V DESHPANDE
Electrical machines by S K BHATTACHARYA
Electrical machines in RAC by MD. SOLAIMAN
AC machines by SOMADDER AND GONGOPADDAI
Electrical machines by DOSSAT.
7252
REFRIGERATION AND AIR-CONDITIONING
T PC
3 3 4
CIRCUITS & CONTROLS-1
AIMS
To provide the students with an opportunity to acquire knowledge, skill and attitude in the area of
refrigeration and air-conditioning circuits and controls with special emphasis on:





Principles of basic electricity.
electric circuits
electric circuits used different types of domestic refrigerator
electrical circuits of window type & split type air-conditioner
automatic controls used in refrigeration and air-conditioning
SHORT DESCRIPTION
Basic electricity; Types of electric circuits; AC circuits parameter; 1-phase & 3-phase circuits; Different
electric circuits used in domestics refrigeration; Electric circuits of chest freezer; Electrical circuits of
window type air-conditioner; Electrical circuits of split type air-conditioner; automatic controls used in
refrigeration and air-conditioning; Various types of temperature, pressure, humidity, level and combination
controls.
DETAIL DESCRIPTION
Theory:
1
Understand basic principles of electric circuits.
1.1
1.2
1.3
1.4
1.5
1.6
2
State the meaning of electricity, voltage, current, resistance, inductance, Capacitance,
reactance, inductive reactance, capacitive reactance, impedance, power, apparent power,
active power, power factor etc.
Explain the ohm’s law.
Explain the Faraday’s law.
Define electric circuit.
Describe series, parallel, combined, open, short and grounded circuits.
Explain the characteristics of series and parallel circuits.
Understand the aspects of single phase and poly phase circuits.
2.1
2.2
2.3
2.4
2.5
Define single phase circuit.
Define poly phase circuit.
List the advantages of poly phase circuit.
Mention the uses of poly phase circuit.
Describe the 3-phase 3-wire system.
2.6
2.7
3
Understand the features of electrical circuits used in frosted type domestic refrigerator.
3.1
3.2
3.3
3.4
3.5
4
4.4
4.5
5.5
5.6
5.7
Draw a schematic electric circuit diagram of a frost free refrigerator-freezer.
Draw the schematic wiring diagram of a frost free refrigerator-freezer.
Explain the operation of schematic wiring diagram of a frost free refrigerator-freezer.
States the specific function of each electrical component of a frost free Domestic refrigeratorfreezer.
Mention the performance checking procedure of timer.
Draw the schematic wiring diagram of a frost free refrigerator-freezer.
Explain the wiring harness diagram of side-by-side refrigerator-freezer.
Understand the features of electric circuits of chest type freezer.
6.1
6.2
6.3
6.4
6.5
6.6
7
Draw a schematic electric circuit diagram of a auto defrost type domestic refrigerator.
Explain the operation of electric circuit of a auto defrost type domestic refrigerator.
State the specific function of each electrical component of auto defrost type domestic
refrigerator.
Mention the workability test procedure of the electrical components of a auto defrost type
refrigerator.
Draw the schematic wiring diagram of a auto defrost refrigerator.
Understand the electrical circuits used in frost free refrigerator-freezer.
5.1
5.2
5.3
5.4
6
Draw a schematic electric circuit diagram of a frost type domestic refrigerator.
Explain the operation of electric circuit of a frost type domestic refrigerator.
State the specific function of each electrical component of a frost type domestic refrigeratorfreezer.
Mention the workability test procedure of the electrical components of a frost type
refrigerator.
Draw the schematic wiring diagram of a frost refrigerator.
Understand the features of electrical circuits used in auto defrost refrigerator.
4.1
4.2
4.3
5
Describe the 3-phase 4-wire system.
Mention the components of 3-phase and single phase power Distribution system in the
diagram.
Draw the line diagram of chest type freezer electric circuit.
Explain the operation of line diagram of chest type freezer electric circuit.
Draw the ladder wiring diagram of chest type freezer.
Explain the ladder wiring diagram of chest type freezer.
Draw the schematic wiring diagram of chest type freezer.
Explain the schematic wiring diagram of chest type freezer.
Understand the features of electric circuits of a water cooler.
7.1
7.2
7.3
Draw the schematic electrical circuit diagram of a pressure type water cooler.
Describe the schematic electrical circuit diagram of a pressure type water cooler.
Draw the schematic wiring diagram of a bottle type water cooler.
7.4
7.5
8
Understand the features of electric circuits of a de-humidifier.
8.1
8.2
8.3
8.4
9
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
Draw the electric block diagram of split type air-conditioner.
Explain the electric block diagram of split type air-conditioner.
Draw the schematic wiring diagram of split type air-conditioner.
Explain the operation of schematic wiring diagram of split type air-conditioner.
Understand the features of electrical circuits of an automobile air-conditioner.
11.1
11.2
11.3
11.4
11.5
11.6
12
Draw the schematic wiring diagram of window air-conditioner with two and three speed fan
motor.
Explain the operation of window air-conditioner with two and three speed fan motor.
Mention the function of each component involved with two and three speed fan motor airconditioner.
Draw the wiring diagram of a window type air-conditioner having three capacitors.
Explain the operation of a window type air-conditioner having three capacitors.
Draw wiring diagram of the window air-conditioner which operates on three phase electric
supply.
Explain the operation of the window air-conditioner which operates on three phase electric
supply.
Mention the terminal identification procedure of a multi speed blower fan motor.
Mention the procedure of workability test of unitary air-conditioner electric components.
Understand the features of electric circuits of split type air-conditioner.
10.1
10.2
10.3
10.4
11
Draw the schematic electrical circuit diagram of a de-humidifier.
Describe the schematic electrical circuit diagram of a de-humidifier.
Draw the schematic wiring diagram of a de-humidifier.
Explain the schematic wiring diagram of a de-humidifier.
Understand the features of electric circuits of unitary type air-conditioner.
9.1
10
Explain the schematic wiring diagram of a bottle type water cooler.
Describe with illustration the electrical circuit of water cooler and warmer.
Draw the schematic wiring diagram of a car air-conditioner.
Explain the operation of schematic wiring diagram of a car air-conditioner.
Mention the function an operation of a car air-conditioner.
Draw the schematic wiring diagram of a bus air-conditioner.
Mention the function of bus air-conditioner electric components.
Describe the operation of bus air-conditioner electric components.
Understand the features of Automatic controls used in refrigeration and air-conditioning.
12.1
12.2
12.3
12.4
List the filed of applications of controls in refrigeration and air-conditioning.
Mention the basic types of controls used in refrigeration and air-conditioning system.
Describe the construction of each type of limit control.
Describe the operation of each type of limit control.
12.5
12.6
12.7
12.8
13
Understand the aspects of temperature and pressure controls.
13.1
13.2
13.3
13.4
13.5
13.6
13.7
14
Mention the applications of each type of limit control.
Mention the procedure of range adjustment and differential adjustment of high and low
pressure cut out.
Describe the controls system used in water cooler, ice maker and car air-conditioner.
Explain the electrical defrost controls.
Mention the different ways of temperature control.
Mention the function of oil pressure control, crank case pressure control and evaporator
pressure control.
Describe the construction of oil pressure control, crank case pressure control and evaporator
pressure control.
Describe the operation of oil pressure control, crank case pressure control and evaporator
pressure control.
Mention the application of oil pressure control, crank case pressure control and evaporator
pressure control.
Describe the construction of different types of solenoid valves.
Describe the operation of different types of solenoid valves.
Understand the aspects of humidity and level controls.
14.1
14.2
14.3
14.4
14.5
14.6
14.7
14.8
14.9
Describe the construction of humidistat.
Describe the operation of humidistat.
Mention the application of humidistat.
Describe the construction of float operated level switch.
Describe the operation of float operated level switch.
Mention the application of float operated level switch.
Describe the combination (temp & pressure control) control system for a refrigeration plant.
Mention the use of level control.
Describe the operation of low side float system level control
Practical:
1
2
3
4
5
6
7
8
9
10
Develop an electric circuit on a wooden board of a frosted refrigerator - freezer and check for correct
connection.
Develop an electric circuit of a auto-defrost refrigerator freezer on a wooden board and check for
connection and operation.
Develop an electric circuit of a non frost refrigerator freezer on a wooden board.
Develop an electric circuit of a chest freezer on a wooden board.
Develop an electric circuit of a water cooler on a wooden board.
Develop a dehumidifier electric circuit on a wooden board.
Develop an electric circuit of a single phase window type air-conditioner using two run capacitor.
Develop an electric circuit of a single phase window type air-conditioner using two run capacitor and
one start capacitor.
Develop an electric circuit of a single phase window type air-conditioner with three phase power
supply.
Test the current coil relay, potential relay and timer.
11
12
Test the over load protector, circuit breaker and thermostat.
Build up a temperature-pressure control system on an open type commercial unit.
REFERANCE BOOKS
1
2
3
4
Refrigeration and air-conditioning
Althouse/Turnquist/Braccino
Refrigeration and air-conditioning Technology
Willian C. Whitman
William M. Johnson
Electric Controls for Refrigeration and air-conditioning
B. C. Langley
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7253
PIPING AND DUCT WORKS
T
2
P
3
C
3
AIMS
To provide the students with an opportunity to develop knowledge, skill and attitude in the area of piping
and duct work with special emphasis on:
 duct work and duct system
 measurement of airflow and duct pressure
 measurement of losses and method of reducing pressure loss in duct
 air distribution in airconditioned space
 fans & blowers
 piping
 duct design and duct insulation
SHORT DESCRIPTION
Concept of duct; Duct work; Duct system; Measurement of airflow; Measurement of duct pressure;
Pressure loss in ducts; Method of reducing pressure losses in duct; Air distribution; Fans and blowers;
Duct design; Duct insulation; Piping of refrigeration and airconditioning plants.
DETAIL DESCRIPTION
Theory:
1
Understand the concept of duct.
1.1
State what is meant by duct.
1.2
Mention the classification of duct.
1.3
Define different types of duct.
1.4
Mention the specific use of different ducts.
1.5
Mention the advantages and disadvantages of different types of duct.
1.6
List the duct materials used in airconditioning and ventilating system.
1.7
State what is meant by duct shape.
1.8
Illustrate different duct shape commonly used in airconditioning and ventilating system.
2
Understand the ductwork.
2.1
Name the materials from which ducts are made.
2.2
Identify the common sheet metal, duct seams and joint.
2.3
Mention the recommended supports and hangers for horizontal ducts.
2.4
List the factors for ductwork which should be observed for a satisfactory air distribution.
2.5
Describe the method of brach duct take off.
2.6
Explain the necessity of canvas connection in suction and discharge side of fan.
2.7
Describe the techniques of hanging duct with ceiling.
3
4
5
Understand the duct system.
3.1
State what is meant by duct system.
3.2
Describe the perimeter duct system.
3.3
Describe the extended plenum duct system.
3.4
Describe the single duct and duel duct system.
3.5
Mention the advantages of duel duct system.
Understand the measurement of airflow in duct.
4.1
Describe the methods of measuring airflow in duct.
4.2
State the equation of continuity for duct.
4.3
Express the deduction of formula to calculate continuity for duct.
4.4
State Bernoulli’s equation for duct.
4.5
Express the deduction of Bernoulli’s equation for duct.
4.6
Solve problems on equation of continuity and Bernoulli’s equation.
Understand the measurement of duct pressure.
5.1
5.2
5.3
5.4
6
7
State what is meant by pressure in duct.
Mention the different duct pressure.
Define the terms : static pressure, velocity pressure and total pressure in a duct.
Describe the methods of measuring static pressure, velocity pressure and total pressure in
duct.
5.5
Solve problems on static pressure, velocity pressure and total pressure in different units.
Understand the concept of pressure losses in ducts.
6.1
List the causes of pressure losses in ducts.
6.2
Describe the pressure loss due to fiction in ducts.
6.3
Mention the importance of friction factor for ducts.
6.4
Describe the pressure loss due to sudden enlargement and constructions of duct area.
6.5
Describe the pressure loss at suction and discharge of a duct.
6.6
Describe the pressure loss due to an obstruction in a duct.
6.7
Describe the pressure loss in fittings.
6.8
Explain the variation of pressure losses along a duct.
6.9
Solve the problems on pressure losses in duct.
Understand the method of reducing pressures losses in duct.
7.1
Identify the fitting in duct, which change pressure losses.
7.2
Describe the affect of using transition piece instead of sudden change in duct area
7.3
Define the terms radius ratio (RR) and aspect ratio (AR).
7.4
Describe the affect of radius ratio and aspect ratio in ductwork.
7.5
Describe the affect of guide vane and splitters used in duct elbow.
7.6
Mention the key points to be considered for reducing pressure loss when designing duct.
8
Understand the concept of air distribution.
8.1
Mention the factors to be considered in air distribution system.
8.2
Identify the air diffusion equipment used in air conditioning plants.
8.3
Describe the factors to be considered in air conditioning system balancing.
8.4
Identify the different types of supply air outlet.
8.5
Mention the location of return air opening.
8.6
Describe the method of good air distribution in aircondition rooms.
8.7
Describe the method of blanching of air in conditioned space.
9
Understand the concept of fans and blowers.
9.1 Identify the fans and blowers.
9.2 Distinguish between induced draft and force draft fans.
9.3 Mention the classification of fans used in refrigeration and air condition.
9.4 Identify different types of fan.
9.5 Describe the operation of centrifugal fan / blower.
9.6 Express the derivation of formula to calculate total power developed by a fan.
9.7 State the laws of fan.
9.8 Describe the method of selecting fan / blower for air handling unit.
10
Understand the duct design.
10.1 State what is meant by duct design.
10.2 Mention the steps of duct design.
10.3 Describe the common methods of duct design.
10.4 Describe the friction chart for circular duct.
10.5 Mention the recommended duct velocities for various application.
10.6 Express the derivation of formula to calculate equivalent diameter of a circular duct for a
rectangular duct.
10.7 Solve problems relating duct design.
11 Understand the concept of duct insulation.
11.1 State what is meant by duct insulation.
11.2 Outline the importance of duct insulation.
11.3 Identify the duct insulating material.
11.4 Describe the good characteristics of duct insulating material.
11.5 Mention the physical properties of common insulation materials.
11.6 Mention the recommended thickness of common duct insulating material.
11.7 Describe the laying out duct insulating material.
12 Understand the concept of piping in refrigeration and airconditioning plant.
12.1 State what is meant by piping.
12.2 State the methods of pipe sizing.
12.3 Mention the classification of pipe used in refrigeration and airconditioning
12.4 Describe the common method of lying and fabricating large copper piping
and steel piping for refrigerant.
12.5 Describe the fabrication and insulation of piping for a central air
conditioning plant.
12.6 Identify the fittings and accessories required in piping.
12.7 Describe the pipe hanging method in refrigeration and air conditioning
plant.
12.8 Describe the procedure of insulating pipes for refrigeration and
airconditioning plant.
12.9 Mention the importance of U loop or trap in refrigeration piping.
12.10 Describe the method of connecting suction and discharge lines for
parallel operation of multiple compressors.
12.11 Describe pressure drop and effect in discharge Line and suction line.
Practical :
1. Study the ductwork.
1.1 Identify the common sheet to be used for ductwork.
1.2 Identify the conventional duct seams and joints.
1.3 Make a rectangular / square duct.
1.4 Insulate the duct.
2 Study the measurement of duct pressure.
2.1 Measure the airflow through duct and compare with the specification of the air handling unit.
2.2 Measure the static pressure, velocity pressure and the total pressure in duct.
3 Study the pressure losses in duct
3.1 Find the pressure losses in band and elbow of duct of an airconditioning plant.
3.2 Find the pressure loss due to sudden contraction in duct of an airconditioning plant.
3.3 Find the pressure loss due to friction in duct.
4
Study the methods of reducing pressure loss in duct.
4.1 Measure the pressure loss due to bend without splitter / guide vane in duct.
4.2 Measure the pressure loss due to bend with splitter / guide vane in duct.
4.3 Compare the pressure loss in bend without splitter and with splitter.
5
Study the air distribution system of an airconditioning plant.
5.1 Identify the different types of air terminals of a central air conditioning plant.
5.2 Draw the conventional air distribution system for a cenemahall.
5.3 Draw the conventional air distribution system for a small office block.
6
Study the fan and blower.
6.1 Identify the different types of fans and blowers.
6.2 Select an air handling unit for your institute Library / Work shop / Auditorium.
Test a fan with fan testing rig and draw a fan performance curve.
7
Study the duct design.
7.1 Find the duct size for your institute library in equal friction method.
7.2 Find the duct size for institute workshop in velocity reduction method.
7.3 Find the duct size for your institute auditorium by static regain method.
7.4 Find the duct size for your institute computer room by T-method.
8
Study the piping of a refrigeration and airconditioning plant.
8.1 Identify the fittings and accessories required in piping.
8.2 Draw the piping system of a cold storage.
8.3 Draw the piping system of a central summer airconditioning.
8.4 Draw the piping system for winter heating system.
9
Study the duct insulation.
9.1 Identify the appropriate insulating martial for a particular duct.
9.2 Install the insulating martial on the duct.
10
11
Visit a central airconditioning plant and prepare a report on piping, ducting and air
distribution system.
Visit a cold storage and prepare a report on piping system.
REFERENCE BOOKS
A Text Book of Refrigeration and Airconditioning

R. S. Khurmi
J. K. Gupta
Refrigeration and Airconditioning

Ballaney
Basic Refrigeration and Airconditioning

P. N. Ananthanarayanan
Principle of Refrigeration

Roy. J. Dossat
A Course in Refrigeration and Airconditioning

S. C. Arora
S. Domkundar
6.
Refrigeration and Airconditioning
Ahmadul Ameen
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
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7254
COMMERCIAL AND INDUSTRIAL REFRIGERATION
T
3
P
3
C
4
AIMS
To provide the students with an opportunity to acquire knowledge, skill and attitude in the area of
commercial and industrial refrigeration with special emphasis on :
 dispensing unit
 vending machine
 display case
 Humidifier
 Dehumidifier
 Beverage cooler.
 walk in cooler & reach in cooler
 Ice making plant.
 Ice cream making plant.
 Milk processing plant.
 Fish processing plant.
 Cold storage plant.
SHORT DESCRIPTION

Pressure type water cooler; Bottle water cooler; Water cooler & warmer; Display freezer; Milk cooler;
Vending machine; Open top display case; Closed top display case; Ice cream maker; Ice cube maker;
Ice plants; Beverage cooler; Walk in cooler; Reach in cooler; Humidifier, Dehumidifier. Ice cream
making plant, Milk processing plant, Fish processing plant, Cold storage plant.
DETAIL DESCRIPTION
Theory :
COMMERCIAL REFRIGERATION
1
Understand the features of water dispensing unit.
1.1
State the purpose of water dispensing unit.
1.2
Mention the classification of water cooler.
1.3
Describe with illustration the refrigeration cycle & water cycle of a pressure type water
cooler.
1.4
Describe the construction of bottle water cooler.
1.5
Describe the operation of bottle water cooler.
1.6
Describe the construction of bottle water cooler & warmer.
1.7
Describe the operation of bottle water cooler & warmer.
1.8
State the specifications of water cooler & warmer.
1.9
Mention the advantages and disadvantages of water dispensing unit and water cooler
warmer
2
Understand the features of display case.
2.1
State the purpose of display case.
2.2
Name different types of display case.
2.3
Classify open top and closed top type display case.
2.4
Describe the construction of an open top display case.
2.5
Describe the operation of an open top display case.
2.6
Describe the construction of a close top display case.
2.7
Describe the operation of a close top display case.
2.8
2.9
2.10
Describe the operation of glass door refrigerator, open air merchdisens, roll-in-ref, solid door
ref & worktop refrigerator
Describe the refrigeration cycle of various types of display case.
Describe the electrical components of various display case.
3
Understand the beverage cooler.
3.1
Explain the meaning of beverage cooler.
3.2
State purpose of beverage cooler.
3.3
Describe the construction of beverage cooler.
3.4
Describe the operation of beverage cooler.
3.5
Explain the air distribution cycle of beverage cooler.
4
Understand humidifier.
4.1
Explain the importance of humidifier.
4.2
Describe the refrigeration cycle of humidifier.
4.3
Describe the construction process of humidifier.
4.4
Describe the operation procedure of humidifier.
5.
Understand the features of dehumidifier.
5.1
State the purpose of dehumidifier.
5.2
Explain the refrigeration cycle of a portable dehumidifier.
5.3
Describe the construction of dehumidifier with air flow cycle.
5.4
Describe the operation of dehumidifier with air flow cycle.
5.5
Describe the condensate water collection process.
5.6
Differentiate the stationary type dehumidifier with the portable type dehumidifier.
6.
Understand the features of milk dispenser.
6.1
State the purpose of milk cooling.
6.2
Describe the construction of milk cooler.
6.3
Describe the operation of milk cooler.
6.4
Explain the refrigeration cycle of a milk cooler with dispenser.
6.5
Describe the construction of a milk cooler with dispenser.
6.6
Describe the operations of a milk cooler with dispenser.
7
Understand the features of vending machines.
7.1
State the purpose of refrigerated vending machine.
7.2
Mention the classification of the vending machines.
7.3
Describe the refrigeration cycle of vending machine.
7.4
Identify the components of a vending machine.
7.5
Describe the operation of a vending machine.
8
Understand the features of walk in cooler.
8.1
Explain the meaning of walk in cooler.
8.2
Describe the construction of walk in cooler.
8.3
Describe the operation of walk in cooler.
8.4
Draw the refrigeration cycle of a walk in cooler.
8.5
Explain the air distribution cycle of a walk in cooler.
9.
Understand the features of reach in cooler.
9.1
State the meaning of reach in cooler.
9.2
Describe the construction of a reach in cooler.
9.3
Describe the operation of a reach in cooler.
9.4
Draw the refrigeration cycle of a reach in cooler.
9.5
Explain the air distribution of a reach in cooler.
INDUSTRIAL REFRIGERATION
10.
Understand milk processing plant.
10.1 State the purpose of milk processing.
10.2 Draw & explain the refrigeration cycle flow diagram of milk processing plant.
10.3 Describe the main equipment and components of milk processing plant.
10.4 Describe the preparation process of powder and condensed milk.
10.5 Describe the preservation process of powder and condensed milk.
10.6 Describe the marketing of powder & condensed milk.
10.7 Describe the safety & controlling device used in milk processing plant.
11.
Understand fish processing plant.
11.1 State the purpose of fish processing in Bangladesh.
11.2 Draw the refrigeration cycle flow diagram of fish processing plant.
11.3 Describe the main equipment and components of fish processing plant.
11.4 Describe the operation procedure of fish processing plant.
11.5 Describe the process of fish preservation & marketing.
12.
Understand ice cream making plant.
12.1 State the purpose of ice cream making.
12.2 Describe the construction & layout of ice cream factory.
12.3 Describe the refrigeration cycle flow diagram of ice cream plant.
12.4 List the raw materials required to make commercial ice cream.
12.5 Describe the preparation process of commercial ice cream.
12.6 Describe the storing & marketing of ice cream.
13.
Understand the features of ice plants.
13.1 State the purpose of ice making.
13.2 Mention the classification of ice plants.
13.3 Describe the components of ice plans.
13.4 Draw the refrigeration flow diagram of ice plans.
13.5 Mention the operation procedure of ice plans.
13.6 Describe the block ice making
13.7 Explain the brine preparation used in a commercial ice plant.
13.8 Mention quality of brine used in a commercial ice plant.
13.9 Describe the loading of water and unloading of ice in an ice plant.
13.10 Describe the storing of ice.
13.11 Mention the purpose of brine agitation & air agitation in Ice block.
14.
Understand the cold storage plant.
14.1
State the importance of cold storage.
14.2
Mention the classification of cold storage plant.
14.3
Describe the construction process of cold storage plant.
14.4
Describe the components of cold storage plant.
14.5
Describe the humidity control process of cold storage.
14.6
Describe the steps of potato preservation process in cold storage.
15.
Understand the features of commercial equipment.
15.1 Classify the refrigeration equipment used for commercial purpose.
15.2 Mention the specific use of commercial refrigeration equipment.
15.3 Classify the compressors used in commercial refrigeration units.
15.4 Mention the use of each type of compressor in commercial field.
15.5 Classify the types of evaporators and condensers used in commercial refrigeration plants.
15.6
15.7
Explain the appropriate type of expansion device with different commercial refrigeration
units.
Classify different types of condensing units used in commercial refrigeration.
16 Understand the features of commercial units.
16.1 Explain with illustration the tandem assembly motor compressor.
16.2 Describe the parallel assembly motor compressor.
16.3 Describe the defrosting systems used in commercial refrigeration system.
16.4 Classify valves used in commercial refrigeration.
16.5 Describe the compressor protective devices (suction line accumulator, hot gas by pass
valve, solenoid valves, safety valve, suction line blow coil, electric heater, etc.).
Practical :
1
2
3
4
5
6
7
8
9
10
11
12
Test the performance of a pressure type water cooler staring current, FLA, the temperature of water
after running 30 min and auto operation).
Check the workability of a bottle cooler.
Test the performance of a display freezer.
Build up a model of display case.
Visit a ice cream plant & make a technical report.
Make a technical report after visiting a Block Ice plant.
Draw a piping diagram of a Block Ice plant.
Visit a cold storage & make report on functioning of cold storage.
Build up a dehumidifier.
Check the performance of check valve & suction pressure regulator.
Visit a fish processing plant & make a report.
Visit a milk processing plant and make a report.
REFERENCE BOOKS
1
2
3
4
5
6
7
Fundamentals of Refrigeration

Billy C. Langley
Modern Refrigeration and Airconditioning

Althouse/Turnquist/Bracciano
Basic Refrigeration and Airconditioning

P. N. Ananthanarayanan
Principle of Refrigeration

Roy J. Dossat
A Text book of Refrigeration and Airconditioning

R. S Khurmi
A Course in Refrigeration and Airconditioning

S. C. Arora
S. Domkundwar
Refrigeration and Airconditioning Technology

Willam C. Whitman
Willam M. Johnson
7255
MAINTENANCE OF RAC EQUIPMENT
T
2
P
6
C
4
AIMS
To provide the students with on opportunity to develop knowledge, skill and affitude
in the area serving and maintenance with special emphasia on :

Servicing and maintenance of domestic refrigerator-freezer.

Refrigerant charging in the refrigerator-freezer.

Maintenance of window type air conditioner

Maintenance of split type air conditioner.

Commercial Unit servicing and performance.

CFCS refrigerant recovery and recycling.

Low pressure and high pressure cutout adjusting.
SHORT DESCRIPTION
Domestic refrigerator freezer cabinet maintenance; Refrigerant charging in domestic
refrigerator freezer; maintenance works in domestic refrigertor-freezer and chest
type freezer; window and split type air-conditioner servicing & maintenance; CFCs
& HCFCs recovery and recycling; commercial refrigeration system; maintenance
pressure cut out adjustment.
1
Understand servicing and maintenance
1.1 State what is meant by servicing and maintenance.
1.2 State the necessity of serving and maintenance
1.3 Mention different types of maintenance.
1.4 Differentiate between preventive maintenance and scheduled
maintenance.
1.5 Mention the works done in preventive and scheduled maintenance.
2.
Understand the domestic refrigeratorfreezar servicing.
2.1 Name the tools and instruments required to service the domestic
refrigerator freezer.
2.2 Mention the works to be done for servicing a domestic refrigerator.
2.3 Name the recommended cleaning solvent for outer and interior surface
of the refrigerator.
2.4 Mention the precautions to be taken during servicing.
Describe the procedure of servicing a domestic frosted refrigeratorfreezer.
2.5 Describe the procedure of servicing a domestic frosted refrigeratorfreezer.
3.
Understand the servicing of frost free refrigerator freezer.
3.1 Mention the necessity of servicing a frost free refrigerator-feezer.
3.2 State the necessity of serving the no frost refrigerator-freezer.
3.3 Mention the emphasis to be given for serving non frost refrigerator
freezer.
3.4 Describe the procedure of cleaning drain line of the non frost
refrigerator-freezer.
3.5 Mention the precautions to be taken during serving the interior part of
frozen food compartment of non frost refrigerator-freezer.
4.
Understand the retrofitting the environmental friendly refrigerant in a
CFC based refrigerator-freezer.
4.1 Name presently available friendly refrigerant can be charged in
refrigerator.
4.2 State how to identity the refrigerant used.
4.3 Describe the factors to be considered when retrofitting the refrigerating
unit.
4.4 What are the precautions to be taken when retrofitting with HC blend
refrigerant.
4.5 State how to determine the performance of a domestic refrigeratorfreezer.
5.
Understand the maintenance of window type air conditioner.
5.1 State the necessity of servicing window type air-conditioner.
5.2 Describe the steps to be taken before any servicing and maintenance.
5.3 List the works done for maintenance of window type air conditioner.
5.4 Mention the tools and equipment required for serving a window type air
conditioner.
6.
Understand the refrigerant charging in the window type air-conditioner.
6.1
Name the traditional and present refrigerant charged into the window
type
air conditioner.
6.2 State the refrigerant identification procedure.
6.3 Describe the refrigerant recovery system from the window
cooler.
6.4 Describe the refrigerant charging procedure in window
type air
conditioner.
7.
Know the maintenance of split type air-conditioner.
7.1 Name two major units of split type air-conditioner.
7.2 Name the out door unit components
7.3 Describe the serving procedure of out door unit.
7.4 Name the indoor unit components
7.5 Describe the servicing procedure of indoor unit.
7.6 Describe the servicing procedure of indoor unit removed from installed
place.
8.
Understand the maintenance of commercial refrigeration equipment.
8.1 State what is meant by the term commercial refrigeration equipment.
8.2 Name some commercial refrigeration equipment operated by three
phase power supply.
8.3 State the works to be done in servicing commercial refrigeration unit
operated by three phase power supply.
8.4 Describe the procedure of scheduled maintenance to be done in a
commercial refrigeration unit operated by three phase power supply.
9.
Understand the procedure of starting a refrigeration plant that was shut
down for a long time.
9.1 What to do first to start a refrigeration plant that was shut down for a long
time
9.2 Describe the procedure of checking electrical system.
9.3 Describe the procedure of checking compressor and compressor driving
motor.
9.4 Describe the procedure of checking cooling tower fan motor.
9.5 Describe the checking procedure of water circulating pump.
9.6 Describe the starting procedure of blower motor of AHU.
9.7 Describe the procedure of checking well-balanced air distribution
system.
10.
Understand the causes of faults with remedies of a split type air
conditioner.
10.1 Mention three major faults with remedies those may arise in compressor
of a split type air conditioner.
10.2 State the causes with remedies of less cooling when running a split type
air conditioner.
10.3 State the causes with remedies of short cycling of outdoor unit of a split
type air conditioner.
10.4 Mention five major causes with remadies those created by the electrical
and electronic circuit of a split type air conditioner.
11.
Understand the costing of refrigeration equipment and equipment
maintenance.
11.1 State what is meant by the term equipment costing.
11.2 Prepare a model of costing of equipment with installation.
11.3 Mention item wise cost of installation and repair of a split type airconditioner.
11.4 Present a bill of repair works done for a split type air conditioner.
12.
Understand the requirement of a refrigeration and air conditioning
service centre.
12.1 State the necessity of a refrigeration and air conditioning
service
canter.
12.2 List the hand tools required to run a RAC service canter
with
specification.
12.3 List measuring tools & equipment used in RAC work with specification.
12.4 List special tools and equipment used in RAC service
centre with
specification.
12.5 Mention the safety tools, device & equipment required in
a RAC
service centre with specification.
12.6 Name the special requirement to run a RAC work
shop/service centre
following national code of practice.
Practical
1
2
3
4
5
6
7
Study the domestic refrigerator-freezer cabinet.
1.1 Check the refrigerator cabinet for door leakage.
1.2 Replace the defective door seal of a refrigerator freezer.
1.3 Adjust / Replace the defective door hinge.
Study the performance of a refrigerator-freezer.
2.1 Check the cooling performance of a refrigerator freezer.
2.2 Check the running and off time of a domestic refrigerator-freezer.
2.3 Check starting performance of the compressor.
Study the electrical circuits of a frost type domestic refrigerator-freezer.
3.1 Check the continuity of the electrical circuit with test lamp.
3.2 Check the continuity of the electrical circuit with the ohm meter.
3.3 Check the continuity with the proper power supply.
Study the electrical circuit of a non-frost type domestic refrigeratorfreezer.
4.1 Check the continuity of the electrical circuit with test lamp.
4.2 Check the continuity of the electrical circuit with ohm meter.
4.3 Check the continuity with proper power supply.
Study the components of electrical circuit of a domestic refrigeratorfreezer.
5.1 Test and check the relay.
5.2 Test and check the thermostat.
5.3 Test and check the capacitor.
5.4 Test and check the timer motor.
5.5 Test and check the defrost thermostat used in non-frost refrigeratorfreezer.
5.6 Test and check lamp switch, fan switch and combination switch for fan
and lamp.
Study the hermetic compressor of domestic refrigerator-freezer.
6.1 Identify the capacity of compressor.
6.2 Identify the compressor motor terminals.
6.3 Perform the pre-replacing work of the compressor.
6.4 Replace the compressor.
6.5 Add the oil to the hermetic compressor if necessary.
6.6 Evaluate the refrigeration system.
6.7 Charge the refrigerator with correct amount of refrigerant.
Service the domestic refrigerator.
7.1 Clean the outside and inside of the body of a domestic refrigeratorfreezer.
7.2 Clean the open type condenser.
7.3 Clean the evaporator surface.
7.4 Clean the compressor.
8
9
10
11
12
13
7.5 Clean the defrost drain line of the domestic refrigerator-freezer.
7.6 Clean the condensate defrost tray.
Service the chest type freezer.
8.1 Clean the freezer cabinet with all other components.
8.2 Perform visual inspection of the chest freezer components.
8.3 Check the electrical circuit and its components.
8.4 Check the performance of the chest type freezer on the basis of (i)
Cabinet temperature (ii) Running time (iii) Off time (iv) Starting & running
amperage.
Install and inspect the upright type freezer.
9.1 Select the place of installation of a upright type freezer.
9.2 Check for connect power supply with safety.
9.3 Install the freezer.
9.4 Start the freezer.
9.5 Check for normal operation of the freezer.
Repair the window type airconditioner.
10.1 Replace the burn out compressor motor.
10.2 Install the new compressor motor.
10.3 Test for leak.
10.4 Flash the refrigerating system with appropriate method.
10.5 Evacuate the refrigeration system of window type air conditioner.
10.6 Charge correct amount of refrigerant into the window air cooler.
10.7 Seal the charging line.
Service the window type air conditioner.
11.1 Remove the chassis of window type air conditioner from the cabinet.
11.2 Clean condenser, cooling coil, filter, chassis, blower fan motor with
appropriate preventive measure.
11.3 Check capacitor, selector, compressor and blower motor.
11.4 Reinstall the chassis of the window type air cooler.
11.5 Check performance of window type air cooler.
Install the split type air conditioner.
12.1 Select the appropriate place for installing indoor and out door unit.
12.2 Install the out door unit of split type air conditioner with necessary safety.
12.3 Install the in door unit of split type air conditioner.
12.4 Connect all necessary piping & cables.
12.5 Make the power supply with the protective device for split type air
conditioner.
12.6 Operate the system.
Study the CFCs refrigerant recovery and recycling.
13.1 Install a piercing valve in the process tube of a faulty compressor of
refrigerator/freezer.
13.2 Recover the refrigerant with a recovery unit from the faulty refrigerator/
freezer.
13.3 Recycle the recovered refrigerant with a recycling unit.
13.4 Reuse the recycled refrigerant.
14.
Study the performance of a commercial refrigerant system which is
operated with three phase power.
14.1 Check wines/cables through which power is given to the system.
14.2 Check safety system of the electrical wiring system connected with the
unit.
14.3 Check the operating instruction.
14.4 Install ampere meter on the line.
14.5 Start the refrigerating unit systematically with all necessary precaution.
14.6 Check for correct operation and performance of the refrigeration system.
15.
Study the pressure cut out of the refrigerating system.
15.1 Identify the LP, HP, duel pressure and oil pressure cut out.
15.2 Adjust cut in and cut out pressure setting in LP, HP cut out.
15.3 Build up a signaling system of L P and HP cut out trip.
REFERENCE BOOKS
1.
Modern Refrigeration and Airconditioning

Althouse/Turnquest/Bracciano
2.
Refrigeration and Airconditioning Technology

welliam C Whitman
William M Johnson
7142
ENGINEERING MECHANICS
T
P
C
3
3
4
AIMS
To provide the students with an opportunity to acquire knowledge, skill and attitude in the area of
engineering mechanics with special emphasis on:









force system, moment and couple
center of gravity
moment of inertia
friction
stress & strain
Torsion
shear force & bending moment
work, power and energy
simple lifting machines and gear train
SHORT DESCRIPTION
Force system, Moment and couple, Center of gravity & centroid, Moment of inertia,
Friction, Stress & strain, Torsion, Shear force and beading moment, Work, power &
energy, Simple lifting machines and Gear train.
DETAIL DESCRIPTION
Theory :
FORCE SYSTEM
1
Understand the composition and resolution of forces.
1.1
1.2
1.3
1.4
1.5
1.6
1.7
State the effect of forces.
Mention the characteristics of forces.
Learn the laws of forces.
Define resolution of forces.
Define resultant force and composition of forces.
Find the resultant force graphically and analytically.
Solve problems related to resultant forces.
MOMENT AND COUPLE
2
Understand the aspects of moment and couple of forces.
2.1
Define moment and couple of a force.
2.2
Represent the moment of a force geometrically.
2.3
State the laws of moments.
2.4
State the Varignon’s principles of moments.
2.5
Proof the Varignon’s principles of moments
2.6
Identify the clockwise and anticlockwise moment.
2.7
Distinguish between clockwise couple and antniclockwise couple.
2.8
Define leverage functions.
2.9
Solve problems related to moment and couple of forces.
3
Understand the aspects of equilibrium of forces.
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
Mention different system of forces.
Mention the various types of equilibrium of forces.
State the principles of equilibrium of forces.
State the Lami’s theorem.
Express the derivation of Lami’s theorem.
Describe different methods of the equilibrium of coplanar forces.
Explain the conditions of equilibrium.
Solve problems related to equilibrium of forces.
CENTER OF GRAVITY
4
Understand the concept of center of gravity.
4.1
4.2
4.3
4.4
4.5
4.6
4.7
Define center of gravity and centroid.
Distinguish between center of gravity and centroid.
Determine the center of gravity of simple geometrical figure geometrically and by integration.
Identify the axis of reference and axis of symmetry.
Determine the center of gravity of plain geometrical figure by first principle of moments.
Calculate the center of gravity of compound geometrical figure or areas by moments.
Calculate the center of gravity of solid bodies.
MOMENT OF INERTIA
5
Understand the application of moment of inertia.
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
5.11
Explain the term moment of inertia.
Mention the units of moment of inertia.
Express the derivation of the formulae for moment of inertia of an area.
Explain polar moment of inertia.
Describe the methods for finding out the moment of inertia.
Find the moment of inertia of a simple areas by integration.
State the theorem of perpendicular axis as applied to moment of inertia.
Proof the theorem of perpendicular as applied to moment of inertia.
State the parallel axis theorem.
Explain the radius of gyration and section modulus.
Calculate the moment of inertia and section modulus of simple solid bodies and composite
sections.
FRICTION
6
Understand the principles and application of friction.
6.1
Define friction.
6.2
State the laws of static and dynamic friction.
6.3
Explain coefficient of friction.
6.4
Determine the frictional force of a body lying on horizontal and inclined plane.
6.5
Identify the ladder and wedge friction.
6.6
Describe the screw friction.
6.7
Solve problems on wedge and ladder friction.
STRESS AND STRAIN
7.
Understand the aspect of stress and strain.
7.1
7.2
Define stress, strain, modulus of elasticity, modulus of rigidity, Bulk modulus, Poison’s ratio
and principle of shear stress.
Establish the relation between stress and strain.
7.3
7.4
7.5
7.6
8.
Explain the stress in composite bar, stress in nuts and bolts, and thermal stress.
Describe the linear and lateral strain.
Explain the stress-strain diagram.
Solve problems on stress and strain.
Understand the effects of torsion of solid and hollow shafts.
8.1
Explain torsion and torsion shear.
8.2
Deduce the equations used incase of designing solid and hollow shafts.
8.3
Deduce the equations of twist angle.
8.4
Solve problems using the equation of solid, hollow shafts and twist angle.
SHEAR FORCE AND BENDING MOMENT
9.
Understand the fundamentals of shear force and bending moment.
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
10.
Define beam.
Identify the types of beam.
Identify the types of loading on beam.
Determine the support reactions of different types of beam under different loading
conditions.
Define shear force (SF) and bending moment (BM).
Differentiate shear force (SF) and bending moment (BM).
Explain the sign convention and characteristics of S.F and B.M diagram.
Draw S.F and B.M diagram of simple supported beams with point load and distributed load.
Draw S.F and B.M diagram of cantilever beams with point load and distributed load.
Understand the aspects of work, power and energy.
10.1
10.2
10.3
10.4
10.5
10.6
10.7
Define work, power and energy.
Explain the work done in rotation.
Mention the types of engine power.
State the meaning of the engine efficiency.
Mention the types of energy.
Express the derivation of the equation of kinetic energy.
Solve problems related to work, power and energy.
SIMPLE LIFTING MACHINES
11.
12.
Understand the principles of simple machines.
11.1 State the meaning of simple machine, compound machine and ideal machine.
11.2 Define the terms velocity ratio, mechanical advantage and efficiency of a machine.
11.3 Relate between efficiency, mechanical advantage and velocity ratio of lifting machine.
11.4 State the law of the machine.
11.5 Explain the reversibility of a machine and self locking machine.
11.6 Solve problems involving velocity ratio, mechanical advantage and efficiency of simple lifting
machines.
Understand the various aspects of gear trains.
12.1
12.2
12.3
12.4
12.5
12.6
State what is meant by gear.
Identify the types of gears.
Identify the simple gear drive.
Express the derivation of the equation of velocity ratio of simple gear drive.
Identify the compound gear drive and gear train.
Identify the equation of power transmitted by simple and compound train.
12.7
12.8
12.9
Identify the epicyclic gear train.
Express the derivation of the velocity ratio of an epicylic gear train.
Solve problems related to gear trains.
Practical :
1
2
3
4
5
6
7
8
9
10
Verify the triangle law of forces.
Verify the polygon law of forces.
Show the resultant of forces by using the force board.
Proof Lami’s theorem by using the force board.
Determine the coefficient of friction of timber, concrete and mild steel.
Determine the tensile stress-strain by testing a mild steel specimen (also draw stress-strain
diagram).
Determine the compressive stress of a timber specimen.
Determine the mechanical advantage of a screw jack.
Determine the center of gravity of a wooden block.
Determine the reaction of beam by using spring balance.
REFERENCE BOOKS
1
Structural Mechanics
2
Structure Mechanics
3
Applied Mechanics
4

Mechanics of Materials

5
6
7
Analytical Mechanics

W. Morgan and D.T Williams

Singer/Popov
R. S. Khurmi
Philip Guatave Laurson
Williams Junkin Cox.

Virgil Moring Faires
Vector mechanics for engineers
Beer and Johnston.
Engineering mechanics
- P. L. Ballaney.
5851
BOOK KEEPING & ACCOUNTING
T
2
P
0
C
2
AIMS
• To be able to understand the principles and practices of book keeping and
accounting.
• To be able to understand the procedures of general accounting, financial
accounting and their applications.
SHORT DESCRIPTION
Concept of book keeping and accounting; Transactions; Entry systems; Accounts;
Journal; Ledger; Cash book; Trial balance; Final accounts; Cost account & financial
accounting; Depreciation; Public works accounts.
DETAIL DESCRIPTION
1 Understand the concept of book keeping and accounting.
1.1 Define book keeping and accountancy.
1.2 State the objectives of book keeping.
1.3 State the advantages of book keeping.
1.4 Differentiate between book keeping and accounting.
1.5 State the necessity and scope of book keeping and accounting.
2 Understand the transactions.
2.1 Define transactions and business transaction.
2.2 Explain the importance of transactions.
2.3 Describe the characteristic features of transactions.
2.4 Discuss the classification of transaction.
2.5 Identify the transaction from given statements stating reasons.
3 Understand the entry system.
3.1 State the aspects of transactions.
3.2 Define single entry system.
3.3 State the objectives of single entry system.
3.4 Discuss the disadvantages of single entry system.
3.5 Define double entry system.
3.6 Discuss the principles of double entry system.
3.7 Justify whether double entry system is an improvement over the single
entry system.
3.8 Distinguish between single entry and double entry system of book
keeping.
4 Understand the classification of accounts.
4.1 Define accounts.
4.2 State the objectives of accounts.
4.3 Illustrate different type of accounts with example.
4.4 Define “Golden rules of Book keeping”.
4.5 State the rules for “Debit” and “Credit” in each class of accounts.
4.6 Determine Debtor (Dr) and Creditor (Cr.) from given transactions
applying golden rules.
4.7 Define accounting cycle.
4.8 State the different steps of accounting cycle.
5 Understand the Journal.
5.1 Define Journal.
5.2 State the object of Journal.
5.3 State the functions of Journal.
5.4 Mention the various names of Journal.
5.5 Interpret the form of Journal.
5.6 Journalize from given transactions.
6 Understand the ledger.
6.1 Define ledger.
6.2 Interpret the form of ledger.
6.3 State the functions of ledger.
6.4 Distinguish between Journal and Ledger.
6.5 Prepare ledger from given transactions.
6.6 Explain why ledger is called the king of all books of accounts.
7 Understand the cash book.
7.1 Define cash book (single, double and triple column).
7.2 Explain cash book as both Journal and Ledger.
7.3 Prepare double column cash book from given transactions showing
balances.
7.4 Prepare triple column cash book from given transaction and find out the
balances.
7.5 Define petty cash book.
7.6 Prepare analytical and imprest system of cash book.
7.7 Define discount.
7.8 Explain the different types of discount.
8 Understand the trial balance.
8.1 Define trial balance.
8.2 State the object of a trial balance.
8.3 Discuss the methods of preparation of a trial balance.
8.4 Explain the limitations of a trial balance.
8.5 Prepare trial balance from given balance.
9 Understand the final accounts.
9.1 State the components of final account.
9.2 Distinguish between trial balance and balance sheet.
9.3 Identify the revenue expenditure and capital expenditure.
9.4 Select the items to be posted in the trading account, profit & loss
account and the balance sheet.
9.5 State the adjustment to be made from the given information below or
above the trial balance.
9.6 Prepare trading account, profit & loss account and balance sheet from
the given trial balance & other information.
10 Understand the cost and financial accounting.
10.1 Define financial accounting.
10.2 State the objectives of financial accounting.
10.3 Define cost accounting.
10.4 Discuss the relationship between financial Accounting and cost
accounting.
10.5 State the elements of direct cost and indirect cost.
10.6 Prepare cost sheet showing prime cost, factory cost, cost of production,
total cost and selling price.
10.7 Discuss the capital budgeting
10.8 Discuss the discounted cash flow method
10.9 Explain the following terms:
a. Fixed cost b. Variable cost c. Factory cost d. Overhead cost e. Process cost
f. Direct cost g. Operating cost h. Standard cost
11 Understand the depreciation
11.1 Define depreciation.
11.2 State the objects of depreciation.
11.3 Discuss the necessity for charging depreciation.
11.4 Describe the different methods of determining depreciation.
11.5 Explain the relative merits and demerits of different method of
depreciation.
12 Understand the public works accounts.
12.1 State the important aspects of public works accounts.
12.2 Describe the main features of public works accounts.
12.3 Explain “Revenue and Grant”.
12.4 Define Value Added Tex (VAT)
12.5 State the merits and demerits of VAT.
12.6 Define Bill and Voucher.
4-YEAR DIPLOMA-IN-INGINEERING PROGRAM
REFRIGERATION AND AIR CONDITIONING TECHNOLOGY (72)
SYLLABUS
(COURSE STRUCTURE-2010)
SIXTH SEMESTER
7261
ADVANCED REFRIGERATION AND AIRCONDITIONING
T
3
P
3
C
4
AIMS
To provide the students with an opportunity to acquire knowledge, skill and attitude in the area of advanced
refrigeration and air-conditioning with special compasses on:

P.H & T.S diagram

Compound vapor compression system

Vapor compression systems with multiple evaporators and compressors

Solar heating and cooling

Refrigerants & refrigerant oils

Refrigerant Recovery, Recycling And Reclaim

Heat pump

Heat exchanger

Evaporating cooling systems
SHORT DESCRIPTION
Compound vapor compression system; Vapor compression system with multiple evaporator and
compressors; Solar heating systems; Solar cooling systems; Refrigerant; CFCs and environmental friendly
refrigerants; Refrigerant oil; Refrigerant recovery, recycling & reclaim; Heat pump; Heat exchanger and
Evaporative cooling system, P.H diagram.
DETAIL DESCRIPTION
Theory:
1
Understand the P.H & T.S diagram of different Refrigerant of simple Vapor Compression
Refrigeration system.
1.1
State what is meant by P.H & T.S diagram.
1.2
Draw a typical P.H diagram & T-S diagram.
1.3
Describe the different line and zone of P.H & T.S diagram.
1.4
Represent Vapor compression cycle on P.H diagram at different condition.
1.5
Explain P.H chart to determine different value of refrigerant of vapor compression cycle.
1.6
Solved problems with P.H chart of different refrigerant at various condition.
2
Understand the compound vapor compression system.
2.1
State the meaning of compound vapor compression system.
2.2
Mention the advantages of compound vapor compression with inter cooler.
2.3
Name the different types of compound vapor compression with inter cooler.
2.4
Describe the two stage compression with liquid inter cooler.
2.5
Describe the two stage compression with water intercooler and liquid sub-cooler.
2.6
Describe the two stage compression with water inter cooler, liquid sub cooler and liquid flash
chamber.
2.7
Describe the three stage compression with water inter cooler.
2.8
Solve problems relating the compound vapor compression system.
3
Understand the vapor compression system with multiple evaporators and compressors.
3.1
Outline the importance of vapor compression systems with multiple evaporators and
compressors.
3.2
Mention the different types of multiple evaporators and compressors system.
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
Describe the multiple evaporators at same temperature with single compressor and
expansion valve.
Describe the multiple evaporators at different temperature with single compressor individual,
expansion valve and back pressure valve.
Describe the multiple evaporator at different temperature with single compressor, multiple
expansion and back pressure valve.
Describe the multiple evaporators at different temperature with individual compressor and
individual expansion valve.
Describe the multiple evaporators at different temperature with individual compressors and
multiple expansion valves.
Describe the multiple evaporators at different temperatures with compound compressor,
individual expansion valve and flash inter cooling.
Describe the cascade system of low temperature refrigeration.
Describe three stage cascade system with schematic and P.H diagram.
Solve problems.
4
Understand the features of solar heating system.
4.1
State what is meant by solar heating system.
4.2
Mention the types of solar heating.
4.3
Describe the operation of different types of solar heat collection.
4.4
Describe the operation of solar air type heating system.
4.5
Describe the operation of liquid type solar heating system.
5
Understand the features of solar cooling system.
5.1
State what is meant by solar cooling system.
5.2
Mention the methods of cooling by using solar energy.
5.3
Describe the operation of the different types of solar cooling system.
5.4
Describe the solar heat operated year round air-conditioning system.
5.5
Describe the operation of a solar heat operated dehumidifier.
5.6
Describe the operation of solar operated heat pump system.
6
Understand the features of refrigerant.
6.1
Mention the physical properties of an ideal refrigerant.
6.2
Mention the chemical properties of an ideal refrigerant.
6.3
Mention the thermodynamic properties of an ideal refrigerant.
6.4
Mention the classification of the refrigerant.
6.5
Describe Hydrocarbon Refrigerant.
6.6
Describe the properties of refrigerant as Halo Carbon- R-134a, zeotropic R-400a to R-416a,
Azeotropic refrigerant R-500 to R-507, Hydrocarbon refrigerant R-290, R-600, R-600a and H
C blend, inorganic refrigerant R-717, R-718, R-728, R-729, R-740 and R-69s.
6.7
6.8
6.9
6.10
6.11
6.12
7
Describe the designation system for refrigerants.
Mention the applications of commonly used refrigerants.
Explain the effects of condensing pressure, evaporating temperature, boiling point, critical
temperature and specific volume on refrigeration cycle.
Mention the color code of different refrigerant cylinder.
Describe the handling and storage procedure of refrigerant and refrigerant cylinder.
Mention the safety requirement when handling and working with refrigerant.
Understand the features of the CFCs and environmental friendly refrigerants.
7.1
State what is meant by the CFC.
7.2
State what is meant by environmental friendly refrigerant.
7.3
List the environmental friendly refrigerant.
7.4
State what is meant by ODS, ODP, and GWP.
7.5
Explain ozone layered depleting, green house effect and global warming.
7.6
7.7
8
Mention the chemical reaction of CFCs with ozone.
Compare commonly used CFC refrigerants with non CFC refrigerants regarding on ODP,
GWP and atmospheric life.
7.8
Mention the Montreal protocols and the clean air acts on substance that deplete the ozone
layer.
7.9
Mention the environmental protection agency (EPA) rules governing fully halogenated
refrigerants (CFCs).
Understand the features of the refrigerant oil.
8.1
Outline the importance of refrigerant oil.
8.2
Mention the classification of refrigerant oil.
8.3
Mention the properties of a good refrigerant oil.
8.4
Explain the properties of refrigerant oil.
8.5
Mention the specification of refrigeration oil.
8.6
Explain the causes of more use of nepthene base oils for refrigeration purpose.
8.7
Explain the contains additives of oil.
8.8
Name the different oils used with the HFC refrigerants.
8.9
Mention the features of synthetic oil used in HFC refrigerant.
8.10 Mention the precuation and safety measure in handling and storing of synthetic oil.
9
Understand refrigerant recovery, recycling and reclaim.
9.1
State the meaning of the terms refrigerant recovery, recycling and reclaim.
9.2
Identify the various types of refrigerant recovery and recycling equipment.
9.3
Describe the procedure of liquid refrigerant recovery.
9.4
Describe the procedure of vapor refrigerant recovery.
9.5
Mention the standard safety recommendation to be followed for removing refrigerant from
system.
9.6
State what is meant by retrofit.
9.7
Describe the retrofit procedure of R-134a in R-12 system.
9.8
State what is meant by drop-in refrigerant.
9.9
Describe the use of drop-in refrigerant (HC blend in- R-12 unit)
9.10 Compare retrofitting of R-12 system with 134a and HC blend.
10
Understand the features of heat pump.
10.1 State what is meant by heat pump.
10.2 Mention the types of heat pump.
10.3 Describe the operation of the different types of heat pump.
10.4 Distinguish between geothermal heat pumps, air source heat pumps and solar heat pump.
10.5 Describe the operation of the heat pump reversing valve in heating and cooling mode.
10.6 Describe the simultaneous cooling and heating applications of heat pump (heat pump
cascade system).
10.7 Mention the industrial applications of heat pump.
10.8 Analyze the heat pump cycle.
10.9 Mention the design criteria effecting the performance of heat pump.
10.10 Solve problems on heat pumps.
11
Understand the features of heat exchanger.
11.1 State the meaning of heat exchanger.
11.2 Outline the importance of heat exchangers.
11.3 Mention the types of heat exchangers.
11.4 Define mean temperature difference.
11.5 Describe the operation of different types of heat exchanger.
11.6 Describe the factors to be considered to design a heat exchanger.
11.7 Solve problems relating heat exchangers.
12
Understand the evaporative cooling system.
12.1
12.2
12.3
12.4
12.5
12.6
12.7
12.8
State what is meant by evaporative cooling systems.
Describe the different ice cooling systems.
Describe the thermodynamics of evaporative cooling.
Mention the types of evaporative cooler.
Describe the operation of different types of evaporative coolers.
Describe the factors to be considered in selection and design of evaporative coolers.
Mention the limitation of simple evaporative cooling system.
Mention the applications of evaporative cooling.
Practical:
1.
Study the PH chart.
2.
Solve problems of simple vapor compression cycle using PH chart.
3.
Solve problems of compound vapor compression cycle using PH chart.
4.
Build up a compound compression system.
5.
Study the solar heat collection.
6.
Study the solar cooling system.
7.
Visit a solar energy project.
8.
Refrigerant recovery at a unit.
9.
Recover refrigerant from a refrigeration system having burnt compressor motor.
10.
Recover refrigerant from a refrigerator using piercing valve and a recovery unit.
11.
Charge CFC refrigerant in to refrigerator without releasing any refrigerant.
12.
Oil Charge in a refrigeration system.
13.
Study the Cascade Refrigeration system.
REFERENCE BOOKS
1.
2.
3.
4.
5.
Fundamentals of Refrigeration

Billy C Langley
A Text Book of Refrigeration and Airconditioning

R S Khurmi
J K Gupta
A Course in Refrigeration and Airconditioning

S C Arora
S Domkcendar
Modern Refrigeration and Airconditioning

Althouse/Turrquist/Bracciano
Advance Refrigeration and Airconditioning

Md. solaiman
7262
RAC CIRCUITS & CONTROLS- II
T
3
P
3
C
4
AIMS
To provide the students with an opportunity to acquire knowledge, skill and attitude in the area of
refrigeration and air-conditioning circuits and controls with the special emphasis on :
•
Control system terminology
•
Controllers
•
Mechanical refrigeration controls
•
Motor controls
•
Cooling unit controls
•
Control of distribution
•
Controls and safety controls of RAC plants
•
Pneumatic control system
•
Electronic thermostat.
•
Digital control
SHORT DESCRIPTION
Terminology of the control system, thermostat used in RAC plants, Controllers used in RAC plants ,
Mechanical refrigeration Control, Motor control hook ups, Commercial central fan cooling system, Control
of distribution, Controls & safety controls used in RAC plants, Terminology of pneumatic controls systems,
Concept of pneumatic control, Pneumatic control Combination, electronic thermostat , digital control.
DETAIL DESCRIPTION
Theory:
1
Understand the terminology of the control system.
1.1
State the meaning of control agent, controlled medium , primary controls,
Operating controls, limit controls, set point, Control point, deviation, differential
gap,
offset , controlling element, two position control, proportional control, compensated control
,floating control , lag, reset controls, modulating control, control hunt, controlled variable,
cycling, instability, night setback, three wire control , two wire control, zone control .
1.2
State the function of thermostat, clock thermostat, day-night thermostat, differential
thermostat, dual thermostat, remote bulb thermostat, surface thermostat control, summerwinter thermostat.
2
Understand the controls, controller and controls system, controllers used
in refrigeration and air-conditioning.
2.1
State the meaning of control, controller and control system.
2.2
Mention the elements of control controller and control system.
2.3
Describe different types of control such as temperature, pressure, liquid
or gas flow, liquid level, timed operations.
2.4
Describe different types of controller such as primary control, operating
control, limit controls.
2.5
Describe the purpose of master controller and submuster controller.
2.6
State the function of immersion controller.
2.7
State the function of reverse acting controller.
2.8
Describe the purpose of a sequential controller.
2.9
State the function of snap acting controller.
3
Understand the controls of mechanical refrigeration.
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
State the requirement of mechanical refrigeration control.
Describe the operation of different types of refrigerant flow controls.
State the meaning of capacity control of a compressor.
Describe the operation of suction pressure control of single compressor.
Describe the operation of a discharge pressure of a compressor.
Describe the operation of stage control of multiple compressor.
Describe the operation of sequence switch control of multiple compressor.
Describe the different types of capacity control of various compressors.
Describe the method of controlling the air for condenser cooling.
4
Understand the motor controls hookups.
4.1
State the meaning of motor control hookup.
4.2
State the function of magnetic starter.
4.3
Describe the operation of a magnetic starter with symbolic diagram.
4.4
Describe the operation of two wire control circuit of magnetic starter.
4.5
Describe the operation of three wire control circuit of magnetic starter.
4.6
Describe the operation of a magnetic starter having three wire control
circuit and NO start button with NC stop button.
4.7
Describe the operation of a magnetic starter with auxiliary contacts to
control other starters.
4.8
Describe the operation of a magnetic starter with Manual and Auto
switch control circuit.
4.9
Describe the operation of a control circuit of a three phase motor for
forward and reverse rotation.
4.10 Describe the operation of a three phase motor with magnetic starter and
timer for star-delta starting system.
5
Understand the controls of commercial central fan cooling system.
5.1
Describe the operation of thermostat control of cold water coil of AC system.
5.2
Describe the operation of temperature and humidity control of coil.
5.3
Describe the operation of valve and by pass control of coil.
5.4
Describe the operation of valve control of direct expansion coil.
5.5
Describe the operation of valve and damper control direct expansion system.
5.6
Describe the operation of valve and damper method with humidity control added.
5.7
Describe the proportional control of multistage compressors.
5.8
Describe the operation of temperature humidity control of reheat system.
5.9
Describe the operation of out door air control with exhaust damper.
6
Understand the control of distribution.
6.1
Describe the various methods of distribution control (liquid refrigerant,
coolant flow, air flow, chilled water flow).
6.2
Describe the methods of liquid refrigerant flow control.
6.3
Describe the proportional control of coolant flow.
6.4
Describe the proportional control of air flow in air-conditioning system.
6.5
Describe the method of controlling chilled water distribution system.
7
Understand the controls and safety controls used in RAC plants.
7.1
Name the controls and safety controls used in RAC plants.
7.2
State the function of different types of control and safety controls used in RAC plants.
7.3
Describe the operation of control circuit of RAC plants.
8
Understand the terminology of pneumatic control system.
8.1 State the meaning of pneumatic actuator, pneumatic controllers, sensitivity
of controller, transducer, control motors, control valves, throttling ranges, damper motor,
direct acting valve, diverting valve, double seated valves, graduate relays,
mixing valve ,motor valve, normally closed valve, normally open valve, pneumatic electric
relay, positive positioning relay, program relay, radiator valve, single seated valve, solenoid
valve, three way valve, unidirectional motor.
8.2
State the function of pneumatic electric relay.
8.3
State the purpose of positive positioning relay.
9
Understand the fundamental concept of pneumatic control.
9.1
Mention the advantages of pneumatic controls.
9.2
Mention the elements of pneumatic controls.
9.3
Describe different types of pneumatic controllers.
9.4
Mention the functions of pneumatic actuators.
9.5
Describe the operation of the basic power unit.
9.6
Describe the operation of the positive positioning relay.
9.7
Describe the operation of a pneumatic control valve.
10
Understand the concept of pneumatic control combination.
10.1 State the meaning of pneumatic control of control combinations.
10.2 Describe the operation of elementary pneumatic control circuit.
10.3 Describe the operation of pneumatic thermostat and low limit control.
10.4 Describe the operation of pneumatic thermostat and high limit control circuit.
10.5 Describe the operation of bleed type low limit control.
10.6 Describe the operation of three position manual switch connected with a
pneumatic control system.
10.7 Describe the operation of electric pneumatic relay.
10.8 Describe the operation of system shut down with pneumatic relay.
11
Understand the electronic controls used in RAC plants.
11.1 State the meaning of electronic thermostat
11.2 Mention the application of electronic thermostat.
11.3 Draw an electrical diagram for an electronic thermostat.
11.4 Mention the different functions of electronic thermostat.
11.5 Mention the advantage of electronic thermostat.
12
Understand the concept of Digital control.
12.1 State the meaning of direct digital control.
12.2 Mention the types of direct digital control (Localized controllers,
Remote controllers and centralized computer controller.)
12.3 Describe the localized control system.
12.4 Describe the remote control system.
12.5 Describe the centralized computer control system.
12.6 Mention Digital control system diagnostics and Repair.
Practical:
1.
2.
3.
4.
Test the different type of thermostat.
Build up an electrical circuit of a single phase operated split type AC.
Build up an electrical circuit of a three phase operated split type AC.
Build up a circuit temperature & pressure control of a industrial refrigeration system.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Test a two & three wire control circuit of a magnetic starter to start & stop a motor.
Build up an electrical control circuit to rotate a three phase motor in reverse and forward.
Build up an electrical inter locking circuit with magnetic starters.
Build up an electrical circuit of star delta method of starting circuit.
Build up a control and safety control circuit for a refrigeration plant.
Build up an electrical circuit to control the capacity of a compressor motor.
Build up an electrical circuit to control the condenser cooling air flow.
Test an electrical circuit of industrial system for defrosting.
Visit an air-conditioning plant and submit a report to the following:
a.
Power supply distribution system.
b.
Control devices.
c.
Safety devices.
d.
Starting and stooping methods.
REFERENCE BOOKS
1.
2.
3.
mvwK©U
Refrigeration and Airconditioning Circuits and Controls-II
− Md. Solaiman
Automatic Control of Heating and Airconditioning
− Haines
wiwdªRv‡ikb G¨vÛ GqviKwÛkwbs †m±‡i cªPwjZ B‡jKUªK¨vj BKyBc‡g›U I
-( eyK‡jU -5 ) cwi‡ek
Awa`ßi
4.
Refrigeration and Airconditioning
- C P Arora
7263
RAC PLANT OPERATION
T
2
P
3
C
3
AIMS
To provide the students with an opportunity to acquire knowledge, skill and attitude in the area of
Refrigeration & Airconditioning plants operation and maintenance with a special emphasis on:
•
operation of Refrigeration and Airconditioning plant.
•
plant commissioning.
•
maintenance.
SHORT DESCRIPTION
Operation of refrigeration plant; Test operation on commissioning; Safe & smooth operation of a plant.
Starting operation of a refrigeration plant which is started in every morning and shutdown in every evening;
Starting method of a refrigeration plant which is shutdown for a long time; Refrigerant charging in
Refrigeration plant; Stopping operation of a Refrigeration plant; Maintenance of a Refrigeration and
Airconditioning plant; Maintenance of the Refrigeration & Airconditioning equipment;
DETAIL DESCRIPTION
Theory:
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
Understand the operation of Refrigeration plants.
State the meaning of Refrigeration plant operation.
State the necessity of recording the reading of temperature for a Refrigeration plant.
Explain with necessary sketch to show the thermometer position on Refrigeration cycle.
Explain the cause of thermometer in the suction line close to the compressor.
State the purpose of a thermometer in the discharge line.
Explain the importance of discharge and suction pressure gauge in a refrigeration plant.
Explain the ideal temperature difference between Refrigerant and the substance.
2
2.1
2.2
2.6
Understand the test operation on commissioning.
Explain the term commissioning.
Describe the importance check point which should be thorough checked after completion of erection
of the plant.
List the test operation which should be carried out on commissioning.
Describe the test operations which should be carried out on commissioning.
List the readings of plant when the system has been stabilized for future servicing and trouble
shooting.
List the data that should be collected before proceeding to check the performance of the plant.
3
3.1
3.2
3.3
3.4
3.5
Understand the safe and smooth operation of a Refrigeration plant.
State the purpose of safety of Refrigeration plant.
List the safety devices of a large Refrigeration and Aircondition plant.
State the function of each safety devices of a Refrigeration plant.
Describe the adjustment & setting required for the operating control and safety devices.
Describe the reasons of failure of smooth operation of a large Refrigeration & air conditioning plant.
2.3
2.4
2.5
3.6
Describe the correcting steps to be taken for smooth operation.
4
Understand the starting operation of a Refrigeration plant which is started in every morning
and shut down in every evening.
List the works which should be ensured before starting the plant.
Describe starting sequence and importance significance of each step.
Explain the necessity of recording the temperature, Pressure, flow rate, voltage and ampere of the
plant when running.
4.1
4.2
4.3
5
5.1
5.2
5.3
5.4
Understand the starting operation of a Refrigeration plant which is shutdown for a long
period.
List all the safety precautions those are to be taken before starting a Refrigeration plant.
Describe the starting sequence of the Refrigeration plant.
State the necessity of recording all the available readings of the plants when starting and running.
State how to make decision for plant operations on the basis of the readings available.
6
6.1
6.2
6.3
6.4
6.5
6.6
Understand the Refrigerant charging in a Refrigeration plant.
Describe the desirable conditions infavour of Refrigerant charging.
Describe the process of charging R-134a, R-407c, R-410, R-502 into a Refrigeration plant.
Describe the charging process of ammonia gas in a large Refrigeration system.
Describe the full refrigerant charge indication in a large Refrigeration system.
Explain the process of an removing/withdraw Refrigerant from a system.
Explain the precautions to be taken when withdrawing ammonia from a plant.
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
Understand the stopping operation of a Refrigerant plant.
State the process of stopping a Refrigeration plant.
Describe the important points to take care of stopping a running Refrigeration plant.
Describe the important points to take care of stopping a running Airconditioning plant.
Describe the stopping sequence of a large Refrigeration plant.
Describe the stopping sequence of a central Airconditioning plant.
Describe the stopping sequence of a VRF unit.
State what is meant pump down system.
Describe pump down system.
8
8.1
8.2
8.3
8.4
8.5
8.6
Understand the maintenance of a Refrigeration and Airconditioning plant.
Describe the purpose of the maintenance of a Refrigeration plant.
Describe the meaning of maintenance, preventive maintenance, post operative maintenance
scheduled maintenance, periodic maintenance and routine maintenance.
State the preventive maintenance work for a Refrigeration plant.
State the post operative maintenance work for a Refrigeration plant.
Prepare a schedule of periodic maintenance for large Refrigeration plant.
Prepare a schedule of periodic maintenance for a central Airconditioning plant.
9
9.1
9.2
9.3
9.4
9.5
9.6
Understand the maintenance of the equipment of a Refrigeration and Airconditioning plant.
Describe the maintenance of compressor.
Describe the maintenance of condenser.
Describe the maintenance of cooling tower.
Describe the maintenance of shell & tube type chiller.
Describe the maintenance of auxiliaries of Refrigeration and air conditioning plants.
Describe the maintenance of AHU, FCU, VRF indoor & VRF outdoor unit of Airconditioning plant.
9.7
Describe maintenance of a pump.
PRACTICAL:
1.
Observe a commercial plant, record the reading of temperature and pressures of different points. Use
these datas for the calculation of capacity and COP.
2.
Adjust LP and HP cutout for a given evaporating and condensing temperature and pressure.
3.
Prepare a log sheet for a commercial plant.
4.
Visit a commercial Refrigeration plant and watch how to start & stop the plant and write a report on
your visit.
5.
Visit a central Airconditioning plant and record all the variable during starting and running a
Refrigeration plant and write a report on your visit.
6.
Charge Refrigerant in a commercial Refrigeration plant.
7.
Purge a commercial Refrigeration plant.
8.
Charge oil in a big compressor.
9.
Do the necessary maintenance work of a cooling tower.
10.
Clean a shell & tube water cooled condenser.
REFERENCE BOOKS
1
A Text Book of Refrigeration & Airconditioning
- RS Khurmi & JK Gupta.
2
Refrigeration & Airconditioning
- PL Ballaney.
3
A Course in Refrigeration and Airconditioning
- SC Arora
- S Domkundwar
7264
LOW TEMPERATURE REFRIGERATION
T
2
P
3
C
3
AIMS
To provide the students with an opportunity to develop knowledge, skill and attitude in the
area of low temperature refrigeration with special emphasis on:

Low temperature refrigeration equipment with their application.

Liquefication of gasses.

Methods of freezing.
SHORT DESCRIPTION
Low temperature refrigeration; Production of low temperature; Manufacturing of dry ice;
Liquefication of gases; Application of low temperature; Low temperature insulation;
Freezing.
DETAIL DESCRIPTION
Theory:
1
Understand the concept of fundamentals of low temperature refrigeration.
1.1
State the term low temperature refrigeration.
1.2 Describe the purpose of low temperature.
1.3 Define the term cryogenics.
1.4 Describe the development of cryogenic technology application.
1.5 Describe the low temperature production methods.
1.6 Explain the limitations of vapor compression system for low temperature
production.
2
Understand the production of low temperature.
2.1
List the methods of production of low temperature.
2.2
Describe the multistage refrigeration system for the production of low
temperature.
2.3
State the advantages of multistage system over single stage vapor
compression system for production low temperature.
2.4
Describe the compound compression system with intercooling and subcooling with liquid refrigeration itself for producing low temperature.
2.5
State the limitation of multistage system.
2.6
Describe the cascade system for production low temperature.
2.7
Describe two stage cascade system for production low temperature.
2.8
Represent two stage cascade system with PH diagram.
2.9
Illustrate three stage cascade system with water intercooling and flash
intercoolers.
2.10 Present a three stage cascade system with PH diagram.
3
Understand the manufacture of dry ice.
3.1
State CO2 liquefaction process.
3.2
List the methods for solidification of liquid CO2.
3.3
3.4
Describe the methods for manufacturing dry ice.
State the suggested modification of the cycle to reduce the production
cost of solid CO2.
4
Understand Liquefication of gases.
4.1 Describe the air liquefication of linde system.
4.2 Describe the air liquefication of Claude system.
4.3 Describe the nitrogen liquefication process.
4.4 Describe the hydrogen liquefication process with sketch.
4.5 Describe the helium liquefication process with sketch.
4.6
Mention the uses of liquid nitrogen, hydrogen and helium.
5
Understand the application of low temperature.
5.1
List the low temperature application.
5.2
Describe expansion and shrink fittings.
5.3
Mention the advantages of shrink fittings.
5.4
Describe the low temperature application process in cryobiology semen
preservation and cryo surgery.
5.5
Describe the low temperature application process in space research
and computer.
5.6
Explain cryogenic for underground power plant.
5.7
Describe miscellaneous uses of low temperature.
6
Understand the low temperature insulation.
6.1
List the insulations used in low temperature application.
6.2
Mention insulation difficulties encountered in low temperature
application.
6.3
Describe high vacuum reflective insulation.
6.4
Describe evacuated powders low temperature insulation.
6.5
Describe rigid foams low temperature.
6.6
Describe the super insulation in low temperature application.
7
Understand the freezings.
7.1
State the term freezing.
7.2
State quick freezing.
7.3
Describe sharp freezing method.
7.4
List quick freezing methods.
7.5
Compare slow and quick freezing.
7.6
Mention advantages of quick freezing over sharp freezing.
7.7
Describe the immersion freezing method.
7.8
Explain the freezing by indirect contact.
7.9
Describe direct contact freezing method.
Practical:
1.
Visit a liquid nitrogen manufacturing plant and draw a layout of the plant.
2.
Visit a liquid oxygen manufacturing plant and draw a layout of the process.
3.
4.
5.
6.
7.
8.
9.
10.
Visit a fish freezing (blast freezing) plant and draw the piping diagram of the plant.
Visit a dry ice plant and draw the piping diagram and cooling system of any.
Visit a plate freezing & make a layout plan showing necessary machineries &
equipment.
Build up a refrigeration unit which can produce a temperature of 25 to 300 C.
Visit a dairy plant, draw a piping diagram and record all variables.
Visit an ice cream plant, draw a schematic diagram, record all products & related
storing temperature.
Visit an industrial plant where using low temperature refrigeration.
Build up a cascade system in chest type freezer.
REFERENCE BOOK
1. Modern Refrigeration and Air-conditioning for Engineers By PS Desai.
7165
FLUID MECHANICS AND MACHINERY
T
P
C
3
3
4
AIMS
To provide the students with an opportunity to acquire knowledge, skill and attitude in
the area of fluid mechanics and machinery with special emphasis on :
• properties of fluids
• fluid pressure measurement
• Bernoulli’s equation
• orifice and mouthpieces
• impact of jet
• water pumps & turbines
• hydraulic devices
• compressors
SHORT DESCRIPTION
Scope of fluid mechanics; Properties of fluid; Fluid pressure measurement; Flow of
fluids through pipes; Bernoulli’s equation; Flow through orifices; Flow through
mouthpieces; Viscous flow; Impact of jets; Water turbine; Pumps; Hydraulic devices;
Reciprocating air compressor; Rotary air compressor.
DETAIL DESCRIPTION
Theory :
1
Understand the scope of hydraulics.
1.1 Define fluid mechanics and fluid machinery.
1.2 Outline the importance of fluid mechanics and machinery
1.3 Mention the branches of fluid mechanics.
1.4 Identify different application of fluid mechanics and fluid machinery in engineering field.
2
Understand the properties of fluids.
2.1 Define fluid.
2.2 Mention the classification of fluids.
2.3 Compare the liquid, vapor and gas.
2.4 Describe various properties of fluids.
2.5 Solve problems on properties of fluids.
3
Understand the concept of fluid pressure.
Define pressure and intensity of pressure.
State the formula for finding pressure and pressure head of fluids.
Mention the significance of fluid pressure.
State Pascal’s law of fluid pressure.
Define atmospheric pressure, gage pressure and absolute pressure.
Mention the relation among atmospheric pressure, gage pressure and
absolute pressure.
3.7 Express the derivation of the formulae for finding total pressure on
immersed surface at horizontal, inclined and vertical position.
3.8 Calculate the total pressure on the bottom and walls of a tank filled with
liquid.
3.1
3.2
3.3
3.4
3.5
3.6
3.9
4
Understand the features of fluid pressure gages.
4.1 State the meaning of pressure gage.
4.2 Mention the classification of pressure gages.
4.3 Define manometer.
4.4 Distinguish between simple manometer and differential manometer.
4.5 Mention the working principle of different types of pressure gages.
4.6 Mention the specific application of different pressure gages.
4.7 Solve problems relating to the measurement of fluid pressure by
different manometer.
5
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
Understand the concept of flow of fluid through pipes.
Identify different types of flow of fluid in pipe.
Mention different types of flow lines.
Express the mathematical deduction of stream function.
State the equation of continuity of flow.
State what is meant by flow rate or discharge.
Compute the formula of flow through pipes.
Describe the operation of Rotameter to measure flow rate of liquid.
State the equation of continuity of flow.
Solve problems on flow of fluid through pipes.
6.1
6.2
6.3
6.4
6.5
6.6
6.7
Understand the concept of Bernoulli’s equation.
Define head, pressure head, velocity head, datum head and total head.
Identify the form of energy existence of liquid in motion.
Mention the total energy of a liquid in motion.
State the Bernoulli’s equation for flowing liquid.
Express the proof of Bernoulli’s equation.
Mention the limitation of Bernoulli’s equation.
Solve problems on Bernoulli’s equation.
6
7
Solve problems on the static fluid pressure.
Understand the application of Bernoulli’s equation.
Mention the functions of venturimeter, orificemeter and pitot tube.
Describe the construction of venturimeter, orificemeter and pitot tube.
Describe the operations of venturimeter, orificemeter and pitot tube.
Express the derivation of formula to measure the quantity of liquid flowing through venturemeter.
Express the derivation of formula to measure the quantity of liquid flowing through orifice meter.
Compare venturimeter and orificementer.
Express the derivation of formula to measure the velocity of flowing
liquid through the pitot tube.
7.8 Solve the problems on venturimeter, orificemeter and pitot tube.
7.1
7.2
7.3
7.4
7.5
7.6
7.7
8
Understand the concept of flow through orifices.
Define orifice.
Mention the classification of orifices.
State what is meant by hydraulic coefficient.
Define jet of water, vena contracta, coefficient of contraction (CC),
coefficient of velocity (Cv), coefficient of discharge (Cd) and coefficient of resistance.
8.5 Relate the CC, Cv and Cd.
8.6 Calculate the coefficient of velocity from laboratory data.
8.7 Express the deduction of formulae for finding the discharge of liquid
through various orifices
8.8 Express the deduction of formulae to calculate the time of emptying
rectangular and hemispherical tanks.
8.1
8.2
8.3
8.4
8.9
Solve problems relating orifices.
9
Understand the concept of flow through mouthpieces.
9.1 State what is meant by mouthpiece.
9.2 Mention the classification of mouthpieces.
9.3 Express the deduction of formulae to calculate discharge through
different types of mouthpieces.
9.4 State what is meant by head loss of flowing liquid.
9.5 List the causes of head loss of flowing liquid.
9.6 Express the deduction of formulae to calculate loss of head due to
sudden enlargement, sudden contraction and obstruction in pipe.
9.7 State what is meant by friction loss of flowing liquid.
9.8 Express the deduction of formulae to calculate loss of head due to
friction (Darcy’s and Cheay’s formulae).
9.9 Solve problems relating head losses and discharge through mouthpieces.
10
Understand the concept of viscous flow.
10.1 Define viscosity.
10.2 Mention the units of viscosity.
10.3 Define ideal fluid, real fluid, Newtonian fluid and non-Newtonian fluids.
10.4 Distinguish between the laminar flow and turbulent flow.
10.5 State what is meant by Reynolds number.
10.6 Describe Reynolds experiment of viscous flow.
10.7 Solve problems relating viscous flow.
11
Understand the aspect of impact of jets.
11.1 State what is meant by impact of jet.
11.2 Express the deduction of formulae to calculate the force of a jet impinging
on a fixed vertical flat plate and an inclined flat plate.
11.3 Express the deduction of formula to calculate the force of a jet impinging
on a fixed curve vane.
11.4 Express the deduction of formula to calculate the force of a jet impinging
on the moving curve vane.
11.5 Solve problems on impact of jets.
12
Understand the features of water turbines.
12.1 State the meaning of water turbine.
12.2 Mention the classification of water turbine.
12.3 Describe the principle of impulse and reaction water turbine.
12.4 Compare the impulse and reaction turbines.
12.5 Describe the components of impulse and reaction turbines.
12.6 Describe the construction of Pelton, Kaplan and Francis water turbine.
12.7 Describe the operation of Pelton, Kaplan and Francis water turbine.
12.8 State what is meant by specific speed of turbine.
12.9 Describe the governing system of impulse and reaction turbines.
13
Understand the features of pumps.
13.1 Define pumps.
13.2 Mention the classification of pumps.
13.3 state what is meant by positive displacement and Rotodynamic pumps
13.4 Describe the construction and operation of different types of positive displacement
and Rotodynamic pumps
13.5 Compare centrifugal and reciprocating pumps.
13.6 Mention the function of air vessel in single acting reciprocating pump.
13.7 Express the deduction of formulae to calculate the discharge, Manometric head,
specific speed, Net Positive Suction Head(NPSH), efficiency, and power required to
drive the centrifugal pump.
13.8 Express the deduction of formulae to calculate the discharge, Cd, Slip and power required to drive the
centrifugal pump.
13.9 Mention specific application of different types of pumps.
13.10 Solve problems relating to centrifugal and reciprocating pumps.
14
Understand the features of hydraulic devices.
14.1 State what is meant by hydraulic devices.
14.2 Mention the function of hydraulic devices viz. hydraulic press, hydraulic
accumulator, hydraulic intensifier, hydraulic crane, hydraulic lift, fluid coupling, etc.
14.3 Describe the constructions of various hydraulic devices.
14.4 Describe the operation of different types of hydraulic devices.
14.5 Solve problems on hydraulic devices.
15
Understand the features of reciprocating air compressor.
15.1 State what is meant by air compressor.
15.2 Mention the classification of air compressor.
15.3 Describe working principle of single stage reciprocating air compressor.
15.4 Mention the advantages of multistage air compressor.
15.5 Mention the function of inter cooler and after cooler of a multistage air
compressor.
16
Understand the features of rotary air compressor.
16.1 State what is meant by rotary air compressor.
16.2 Distinguish between reciprocating and rotary air compressors.
16.3 Mention types of rotary air compressors.
16.4 Describe the operation of different types of rotary air compressor.
16.5 Distinguish between centrifugal and axial flow air compressor.
16.6 State what is meant by efficiency of air compressor.
16.7 Solve problem related to efficiency of air compressor.
PRACTICAL :
1. Calibrate a bourdon tube pressure gage with a dead weight gage.
2. Verify Bernoulli’s eqation by Bernoulli’s apparatus equipped with hydraulic test
bench.
3. Determine CC, CV, and Cd by orifice apparatus equipped with hydraulic test
bench.
4. Determine the discharge of water through a pipe by the venturimeter or orifice
meter equipped with hydraulic test bench.
5. Determine the loss of head due to sudden enlargement of pipe by the
manometer.
6. Determine the loss of head due to friction by fluid friction apparatus.
7. Determine the loss of fluid energy loss through various fittings (elbows, bends
and valves).
8. Test the performance of a reciprocating pump with the reciprocating pump test
rig.
9. Test the performance of a centrifugal pump with the centrifugal pump test rig.
10.Test the performance of an impulse turbine with the impulse (Pelton wheel)
turbine test rig.
11. Test the performance of a Francis turbine with the Francis turbine test rig.
12. Determine the leverage and mechanical advantage of a hydraulic press.
13. Identify the components of hydraulic crane and operate a hydraulic crane.
14. Identify the different components of a two stage reciprocating air compressor and
operate the compressor.
REFERENCE BOOKS
1 A text book of fluid mechanics and Hydraulic Machinery
- R.K RAJPUT
2 Fluid mechanics and Machinery
- K. AGRAWAL
3 A Text Book of Hydraulics, Fluid Mechanics and Hydraulic Machines
- R. S. Khurmi
4 Fluid Mechanics Hydraulics and Hydraulic Machines
- K. R. Arora
5 Hydraulics, Fluid Mechanics, and Fluid Machines
- S. Ramamrutham
6 Fluid Mechanics including Hydraulics Machines
- K. Subramanya
5840 ENVIRONMENTAL MANAGEMENT
T
P
C
2
0
2
AIMS





To be able to understand the basic concepts of environment and environmental pollution.
To be able to understand the concepts of ecology, ecosystems, global environmental issues, air
pollution, water pollution, soil pollution, radioactive pollution, sound pollution, etc.
To be able to understand the methods of controlling air pollution, water pollution and sound
pollution.
To be able to understand the management of waste, soil and .pesticide pollution and
To be able to understand the major environmental issues and problems in Bangladesh.
SHORT DESCRIPTION
Basic concepts of environment; Ecology & eco-systems; global environmental issues Air and atmospheric
layers; Air pollution sources & effects; climate change, green house effect and depletion of ozone layer;
Control of air pollution; Water pollution sources & effects; Monitoring of water pollution; Waste water
treatment; Sound pollution and its control; Soil pollution and its management; Radioactive pollution and its
control; Solid waste management; Major environmental issues and disaster management- Arsenic pollution;
Pesticides pollution and its management, Environmental legislations and guidelines frame work and policy
in Bangladesh.
DETAIL DESCRIPTION
1.
Understand the basic concepts of environment.
1.1
Define: environment, Marine environment, Freshwater environment, Nutrients, Mangrove
forest, Photo-chemical oxidant, Pollutant, Receptor, Sink, Pathways of pollutant, Speciation.
1.2
Mention the main components of environment.
1.3
Mention the functions of environment.
1.4
Describe natural environment, man-made environment and social environment.
2.
Understand ecology and eco-systems.
2.1
Define ecology and eco-system.
2.2
Mention the range of tolerance in eco-system.
2.3
Explain the biotic and abiotic components of eco-system.
2.4
Explain briefly how does eco-system work.
2.5
Explain the stability of eco-system.
2.6
Explain the following ecological terms:
Food chain, Food web, Biodiversity, Biomass, Ecological pyramid, Pyramid of biomass,
Pyramid of energy, Bio-concentration, Bio-magnification, Restoration ecology.
2.7
Narrate the following bio-geochemical cycles of eco-system.
a)
Carbon cycle
b)
Nitrogen cycle
c)
Phosphorus cycle
d)
Sulphur cycle.
e)
Hydrologic cycle
2.8
3
Describe the following global environmental issues: Global environment, Earth and other
environmental summits, climate change and ozone layer depletion.
Understand the air and the atmospheric regions.
3.1
Mention different layers of atmosphere.
3.2
Mention the average composition of the atmosphere at sea level.
3.3
Describe the chemical species and particulates present in the atmosphere.
3.4
Describe the importance ozone layer.
4
Understand the air pollution and its sources & effects.
4.1
Define air pollution.
4.2
Mention the composition of clean dry atmospheric air.
4.3
List the air pollutants.
4.4
Identify the sources of air pollutions.
4.5
List the green house gases.
4.6
Mention the effects of air pollution on human health, animals, plants and non-living things.
4.7
Explain the formation of photo-chemical smog and its effect.
4.8
List the disasters of major air pollution in the world mentioning location, causes and effects.
4.9
Explain the causes of acid rain and its effect on eco-system.
5
Understand the control of air pollution at the sources.
5.1
Mention the methods of air pollution control.
5.2
Describe the following devices: gravitational settling chamber, cyclone separator, wet
scrubber, centrifugal scrubber, fabric filter, catalytic converter.
6
Understand the sources of water pollution and its effects.
6.1
Define water pollution.
6.2
Mention the specification of ideal water as per recommendation of the World Heath
Organization (WHO).
6.3
List the different types of water pollutants.
6.4
Describe the sources of water pollution.
6.5
Describe the effects of water pollution on human health, animal, plants and environment.
7
Understand the monitoring of water pollution.
7.1
Define the following terms:
(i)
Dissolved oxygen (DO).
(ii)
Biochemical oxygen demand (BOD).
(iii)
Chemical oxygen demand (COD).
(iv)
Total organic carbon (TOC).
(v)
Threshold limit value (TLV).
7.2
Mention the method of determination of pH value of water.
7.3
Mention the method of determination of dissolved oxygen (DO) in a sample of water.
7.4
Mention the method of determination of biochemical oxygen demand (BOD) in a sample of
water.
7.5
Mention the method of determination of chemical oxygen demand (COD) in a sample of
water.
8
Understand the waste water treatment.
8.1
Define the primary treatment, secondary treatment and tertiary treatment of waste water.
8.2
Define the following terms; ETP, Oxidation pond, waste stabilization pond, trickling filter,
Activated slug.
8.3
Mention the methods of primary and secondary treatment of industrial waste water.
9
Understand the sound pollution and its control.
9.1
Define sound, sound wave and sound pollution.
9.2
Mention the scale of measuring sound intensity.
9.3
Mention the sources of sound pollution.
9.4
Describe the effect of sound pollution on human health.
9.5
Describe the methods of control of sound pollution.
Understand the soil pollution and its management.
10.1 Define soil pollution.
10.2 List the classification of soil pollution.
10
10.3
10.4
Mention the sources of soil pollution.
Describe the effect of soil pollution on human health.
11
Understand the radioactive pollution and its control.
11.1 Define radioactive pollution.
11.2 Mention the sources of radioactive pollution.
11.3 List the causes of radioactive pollution.
11.4 Explain the effect of radioactive pollution on human health.
11.5 Describe the method of control of radioactive pollution.
12
Understand the solid waste management.
12.1 Define solid waste.
12.2 List the sources of solid waste.
12.3 Mention the classification of solid waste.
12.4 Mention the methods of collection of solid waste.
12.5 Mention the waste management strategies in Bangladesh.
12.6 Describe the recycling of solid wastes.
12.7 Describe the potential method of disposal of solid waste.
13
Understand the major environmental issues in Bangladesh.
13.1 List the major environmental issues in Bangladesh.
13.2 Describe the following disaster management of Bangladesh
flood, cyclone, tidal surge, Cyclone(SIDR, AILA, Nargis, Tsunami), landslide, earthquakes
and salinity.
14
Understand the arsenic pollution in Bangladesh.
14.1 Mention the arsenic pollution of water in Bangladesh.
14.2 Explain the effects of arsenic pollution on human health.
14.3 Describe the causes of arsenic in ground water.
15
Understand the pesticide pollution in Bangladesh and its management.
15.1 Define pesticide.
15.2 Make a list of pesticides.
15.3 Mention the causes of pesticide pollution in Bangladesh.
15.4 Describe the effect of pesticide pollution in the environment.
16
Understand the national environmental legislations and guidelines environmental frame
work and policy in Bangladesh.
16.1 Define, EA, EIA, IEA, NEMAP, DOE, BELA, GPS, GIS
16.2 Mention environmental act and legislations prescribed for air and water quality.
16.3 Describe environmental act prescribed for industries in Bangladesh.
16.4 Describe the guide lines of environment prescribed for industries in Bangladesh.
16.5 Describe the environmental frame work in Bangladesh.
REFERENCE BOOKS
1.
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6.
7.
8.
9.
10.
11.
12.
13.
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gvwU I †ZRw¯Œq `~lY Ges cÖwZKvi
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Pollution control in process industries

S. P. Mahajan
Environmental Engineering

Peavy, Rowe and Techobanglous
Air pollution

V. P. Kudesia
Industrial Noise Control

Bruce Fader
Pesticide Pollution

Kudecsia and Charaya
Water Pollution

V. P. Kudesia
Peoples Report on Bangladesh Environment 2001
Atia Rahman, M. Ashraf Ali and Farooque Choudhury
5852
INDUSTRIAL MANAGEMENT
T P C
2 0 2
AIMS
• To be able to develop the working condition in the field of industrial or other
organization.
• To be able to understand develop the labor management relation in the
industrial sector.
• To be able to develop the management techniques in the process of decision making.
• To be able to manage the problems created by trade union.
• To be able to understand the network , PERT, CPM & MBO
• To be able to perform the marketing.
• To be able to maintain inventory.
SHORT DESCRIPTION
Basic concepts of management; Principles of management; Scientific management;
Organization; Span of supervision; Motivation; Personnel management and human
relation; Staffing and manpower planning ; Training of staff; Industrial dispute; Concept of leadership;
Concepts and techniques of decision making; Concept of trade union; Inventory control; Economic lot size ;
Break even analysis; Labour and industrial law; PERT , CMP ; Network ; Marketing; Production
management;
1 Understand the basic concepts & principles of management.
1.1 Define management and industrial management.
1.2 State the objectives of modern management.
1.3 Describe the scope and functions of management.
1.4 State the principles of management.
1.6 State the activity level of industrial management from top personnel to
workmen.
1.7 Describe the relation among administration, organization &
management.
1.8 Define Production Management and functions of Production Management.
1.9 Explain the social responsibilities of management.
2 Understand the concept of scientific management.
2.1 Define scientific management.
2.2 Discuss the basic principles of scientific management.
2.3 Explain the different aspects of scientific management.
2.4 Discuss the advantages and disadvantages of scientific management.
2.5 Describe the difference between scientific management and traditional
management.
2.6 Describe the following four periods of management thought:
(i) pre-scientific management.
(ii) scientific management.
(iii) human relations
(iv) refinement extension and synthesis of management theories and
practices.
3 Understand the concepts of organization and organization structure.
3.1 Define management organization.
3.2 State the elements of management organization.
3.3 Discuss the types of organization structure
3.4 Describe different forms of organization structure.
3.5 Distinguish between line organization and line & staff organization.
3.6 Distinguish between line organization and functional organization.
3.7 Describe the feature advantages and disadvantages of different
organization structure.
3.8 Define organizational chart.
3.9 Describe the different types of organizational chart.
4 Understand the basic concept of span of supervision.
4.1 Define span of supervision and optimum span of supervision.
4.2 Discuss the considering factors of optimum span of supervision.
4.3 Discuss advantages and disadvantages of optimum span of supervision.
4.4 Define delegation of authority.
4.5 Explain the principles of delegation of authority.
4.6 Explain the terms: authority, responsibility and duties.
5 Understand the concept of motivation.
5.1 Define motivation.
5.2 Discuss the importance of motivation.
5.3 Describe financial and non-financial factors of motivation.
5.4 State the motivation process or cycle.
5.5 Discuss the motivation theory of Maslows and Harzbergs.
5.6 Differentiate between theory-X and theory-Y.
5.7 Discuss the relation between motivation and morale.
6 Understand the concept of leadership.
6.1 Define leadership.
6.2 Discuss the importance and necessity of leadership.
6.3 Discuss the functions of leadership.
6.4 Identify the types of leadership.
6.5 Describe the qualities of a leader.
6.6 Distinguish between autocratic leader and democratic leader.
7 Understand the basic concepts and techniques of decision making.
7.1 Define decision making.
7.2 Discuss the importance and necessity of decision making.
7.3 Discuss different types of decision making .
7.4 Describe the steps in decision making.
8 Understand the concept of personnel management and human relation.
8.1 Define personnel management.
8.2 Discuss the importance of personnel management.
8.3 Discuss the functions of personnel management.
8.4 Define staffing.
8.6 Define recruitment and selection of employees.
8.7 Describe various sources of recruitment of employees.
8.8 Describe the various methods of selection of employees.
8.9 Discuss the advantages and disadvantages of internal sources of
recruitment.
8.10 Discuss the disadvantages of external sources of recruitment.
8.11 Define training and orientation of employee.
8.12 Discuss the importance and necessity of training.
8.13 Discuss the various methods of training of workmen, technicians and
executive personnel.
9. Understand the concept of inventory control
9.1 Define inventory.& inventory control.
9.2 Describe the function of inventory control.
9.3 Discuss the necessity and importance of inventory control.
9.4 Mention the advantages and disadvantages of inventory control.
9.5 Explain the following terms :
- Bin card or Bin tag.
- Purchase requisition.
- Store requisition.
- Material transfer note.
- First in first out (FIFO).
- Last in first out(LIFO).
- PERT
- CPM
- NETWORK
- MBO
10 Understand the concept of economic lot size & break even analysis
10.1 Define economic lot size.
10.2 Discuss the effects of over supply and under supply.
10.3 Describe the method of determination of economic lot size.
10.4 Explain the terms :
- Safety stock
- Determination of safety stock
- Lead time
10.5 Define break even point and break even chart.
10.6 Explain the terms :
- Break even analysis.
- Fixed cost.
- Variable cost.
10.7 Discuss the importance of break even analysis.
10.8 Describe the method of preparing break even chart.
10.9 Describe different methods of break even analysis.
10.10 Draw break even chart in different method.
10.11 Mention the advantages and disadvantages of break even analysis.
11 Understand the concept of Marketing and inventory control
11.1 Define marketing.
11.2 Discuss the function of marketing.
11.3 State the objectives of marketing.
11.4 Explain the terms :
- Brand
- Producer
- Consumer
- Customer
- Copyright
- Trade mark
11.5 Discuss product life-cycle and marketing strategies in different stages of a product life-cycle
11.6 Define purchasing
11.7 Describe the five “R” of purchasing principles
12 Understand the concept of trade union and industrial law
12.1 Define trade union.
12.2 Mention the objectives of trade union.
12.3 Discuss the function of trade union.
12.4 Describe different types of trade union.
12.5 Mention the names of major trade union in Bangladesh.
12.6 Define labour and industrial law.
12.7 Discuss the importance of labour and industrial law.
12.8 Explain the terms :
- Factory Act. (1965)
- Minimum Wage Act (1957).
- Industrial Disputes Act.
- Work Men Compensation Act.
- Trade Union Act.