SOLTEQ®
Equipment for Engineering Education & Research
VAPOUR COMPRESSION
REFRIGERATION CYCLE
MODEL: RF 166
HIS Vapour Compression Refrigeration Cycle (Model: RF 166) has been designed for students to
study the thermodynamics of the vapour compression cycle. The unit is constructed as a benchtop
unit. The unit operates as either a refrigerator or as a heat pump so that experiments on the evaluation of refrigerant cycle and thermodynamic energy balances of the condenser, evaporator and compressor
can be performed. The evaporation can be observed through the glass components.
T
DESCRIPTION
The Vapour Compression Cycle
The work input to the Vapour Compression Cycle
drives a compressor which maintains a low pressure
in an evaporator and a high pressure in condenser.
The temperature at which a liquid will evaporate (or a
vapour will condense) is dependent on the pressure,
thus if a suitable fluid is introduced it will evaporate at
a low temperature in the low pressure evaporator (taking in heat) and will condense at a high temperature
in the high pressure condenser (rejecting heat). The
high pressure liquid formed in the condenser must
then be returned to the evaporator at a controlled rate.
130513REV0.0
SOLTEQ®
Equipment for Engineering Education & Research
1) An evaporator where heat is taken in at a low temperature as a liquid evaporates at a low pressure.
♦ Generation of a refrigeration cycle diagram on a
pressure-enthalpy chart
♦ Measurement of effect of condensing temperature
on compressor power input
2) A compressor which uses a works input to increase
the pressure of the vapour.
SPECIFICATIONS
The four main components of this unit are:
3) A condenser where the high pressure vapour condenses, rejecting heat to its surroundings.
4) A flow control device which controls the flow of liquid back to the evaporator and which brings about
the pressure reduction.
The refrigeration cycle is most interesting from the thermodynamic view point. It is one of the few practical
plants which operates on a true thermodynamics
cycle.
The unit is fitted with all the necessary sensors for the
measurements of the temperature and pressure of the
refrigerant in the evaporator and condenser, the temperature of the water entering and leaving the condenser and evaporator, the water flow rate through
both the condenser and evaporator.
EXPERIMENTAL CAPABILTIIES
♦ Demonstration of vapour compression refrigeration
cycle with visual observation of the important process
♦ Investigation/demonstration of the saturation pressure-temperature relationship during evapora t i o n
and condensation
♦ Demonstration of ‘pumping over’ or ‘pumping
down’ into the condenser
♦ Demonstration of charging
♦ Demonstration of effect of air in a refrigeration system
♦ Determination of effect of evaporating and condensing temperatures on the refrigeration rate and condenser heat output
♦ Investigation of the effect of compressor pressure
ratio on system performance
♦ Determination of overall heat transfer between refrigerant and water in evaporator and condenser
Compressor
Type
Refrigerant
Power
Power supply
:
:
:
:
Condenser
Type
Material
Capacity
: Water cooled
: Borosilicate glass
: Approx. 1.0 L
Evaporator
Type
Material
Capacity
: Water heated
: Borosilicate glass
: Approx. 1.0 L
Hermetic
R-141b
1/4 hp
240VAC, 1 phase
Expansion Valve
Type
: Float operated
Water Flowmeter
Range
: 10 to 180 L/hr
Temperature Sensors
Type
: RTD sensor Class A
OPTIONAL ITEMS
- EI
DIGITAL INSTRUMENTATIONS
i) 6 units of RTD PT100 sensor c/w transmitter
♦ Water inlet and outlet temperatures at condenser
♦ Water inlet and outlet temperatures at evaporator
♦ Evaporation temperature
♦ Condensation temperature
ii) 2 units of pressure transmitter
♦ Evaporation pressure
♦ Condensation pressure
130513REV0.0
SOLTEQ®
Equipment for Engineering Education & Research
iii) 2 units of electronic flowmeter
♦ Water flowrate through evaporator coil
♦ Water flowrate through condenser coil
UTILITY REQUIREMENTS
Electrical supply : 230VAC/1-phase/50Hz/13A
Water supply
: Laboratory tap water
- DAS
SOLDAS DATA ACQUISITION SYSTEMS
OVERALL DIMENSIONS
i)
ii)
iii)
iv)
A PC with latest Pentium Processor
An electronic signal conditioning system
Stand alone data acquisition module
Windows based software
♦ Data Logging
♦ Signal Analysis
♦ Process Control
♦ Real-Time Display
♦ Tabulated Results
♦ Graph of Experimental Results
- CAL
SOLCAL COMPUTER AIDED LEARNING SOFTWARE
i)
ii)
iii)
iv)
Height : 0.855 m
Length : 1.195 m
Width : 0.475 m
MANUAL
The unit is supplied with Operating and Experimental
Manuals in English giving full descriptions of the unit,
summary of theory, experimental procedures and
typical experimental results.
Interactive multimedia features
Graphical simulation
Experiment results samples
Full experiment manuals
130513REV0.0
SOLTEQ®
Equipment for Engineering Education & Research
SOFTWARE & E - LEARNING
Our range of teaching equipment can be complemented with our
SOLDAS and SOLCAL software.
SOLDAS® - Supervisory Control & Data Acquisition
- Data Logging
- Signal Analysis
- Process Control
- Real-Time Display
- Tabulated Results
- Graph of Experimental Results
SOLCAL® - Computer Aided Learning
- Multimedia Features
- Interactive
- Graphic Simulation
- Experiment Result Samples
- Full Experiment Manuals
Contact us for a catalog CD
SOLUTION ENGINEERING SDN. BHD.
(Co. No. 174876)
A wholly-owned subsidiary of ACE Market listed, SOLUTION ENGINEERING HOLDINGS BERHAD
Sales Office:
No. 3, Jalan TPK 2/4, Taman Perindustrian Kinrara,
47100 Puchong, Selangor Darul Ehsan, Malaysia.
Tel. No. : +(603) 8075 8000
Fax No. : +(603) 8075 5784
Email
: sales@solution.com.my
Web Site : http://www.solution.com.my/
BUATAN MALAYSIA
MSC- Status
Company
130513REV0.0