FACULTY OF ENGINEERING, BUILT ENVIRONMENT AND INFORMATION TECHNOLOGY DEPARTMENT: MECHANICAL AND MECHATRONICS ENGINEERING PROGRAMME: Bachelor of Engineering Technology (Mechanical Engineering) MODULE NAME: HYDRODYNAMIC MACHINES III MODULE CODE: MHM32A NQF LEVEL: CREDITS: 7 14 COMPILED BY: Mr. LR Masheane DATE REVISED: 2021 CONTENTS BLENDED LEARNING LEARNER GUIDE CONTENTS 1. 2. 3. 4. MODULE OVERVIEW ............................................................................ 3 1.1 Purpose Statement ...........................................................................................3 1.2 Module Information ...........................................................................................3 1.3 Knowledge Areas covered in this Module .........................................................3 1.4 Graduate Attributes to be Assessed in this Module ..........................................3 1.5 Module Syllabus Outline ...................................................................................3 1.6 Module Learning Material..................................................................................4 1.7 Information about the lecturer ...........................................................................4 MODULE LEARNING OUTCOMES........................................................ 5 2.1 Calculation of Module Credits and Notional Hours ...........................................5 2.2 Module Learning Units and Notional Hours ......................................................6 2.3 Semester Programme for the Module ...............................................................7 2.4 Assessment of Module Learning Units .............................................................8 2.5 Assessment Procedure .....................................................................................9 2.6 Graduate Attributes Assessed in this Module ...................................................9 2.7 CUT Graduate Attributes and Action Verbs Used in Assessments ..................9 2.8 Aligning CUT Graduate Attributes to ECSA Graduate Attributes .................. 10 2.9 Revised Bloom’s Taxonomy used in the formulation of questions ................ 10 LEARNING COMPONENT ....................................................................12 3.1 Guidelines for improving performance in the module .................................... 12 3.2 Assignment/Project Submittal and Identification Sheet ................................. 13 LABORATORY COMPONENT ..............................................................14 4.1 5. Laboratory/Practical Submittal and Identification Sheet ................................ 15 SAFETY COMPONENT .........................................................................16 5.1 General Safety ............................................................................................... 16 5.2 Hand and Power Tools ................................................................................... 16 2 1. MODULE OVERVIEW 1.1 Purpose Statement The module Hydrodynamic Machines III in the programme B Eng Tech (Mechanical Engineering), aims at providing learners with an advanced understanding of hydrodynamic machines in order to enable the practical application of generally accepted conceptual procedures to ultimately attain advanced skills in the practical application thereof in Mechanical Engineering. 1.2 Module Information Learning area Module Module code NQF level Credits Notional hours Contact sessions Assessments 1.3 Mechanical Engineering Hydrodynamic Machines III MHM32A 7 14.4 144 Four (4) theory periods per week, presented through an online platform such as Blackboard Collaborate, as indicated on the timetable 4 practical periods of 40 minutes each 1 assignment, I self-study, 2 tests and 1 Examination per semester Marking Rubrics will be provided with the practicals and assignments Knowledge Areas covered in this Module MHM32A 1.4 14.4 14.4 Graduate Attributes to be Assessed in this Module No Graduate Attributes will be assessed in this module. 1.5 Module Syllabus Outline The following topics will be covered in this learning module: • Pumps 3 6. Complementary Studies 7 5. Computing and IT Module Credits 4.Engineering Design & Synthesis Hydrodynamic Machines III NQF Level 3. Engineering Sciences Module Name 1. Mathematical Sciences Module Code 2. Natural Sciences ECSA Credits in Knowledge Area • • 1.6 Turbines Compressors Module Learning Material Prescribed Textbook: 1. Fluid Mechanics: Fundamentals and Applications Highly recommended reading: 1.7 by Yunus A. Cengel Dr. and John M. Cimbala, 2016, 6th Edition 1. Engineering Fluid Mechanics, T. A.I-Shemmeri, Bookboon, 2012. 2. Fundamentals of Fluid Mechanics, 7th Ed., Munson B R, Young D F & Okiishi T H, 1994. Information about the lecturer Name: Office: Telephone: E-mail: Postal address: Consulting Hours: Mr. LR Masheane BHP BUILDING, Room 152 (051) 507 3683 lmasheane@cut.ac.za Central University of Technology, Free State Private Bag X20539, Bloemfontein, 9300, South Africa Consulting will be conducted via eThuto’s Discussion Board and email facility 4 2. MODULE LEARNING OUTCOMES This module will be presented according to the outcomes-based education philosophy. The lecturer will use a variety of instructional techniques and methods in striving towards achieving the critical cross-field outcomes as well as the general aims of the module and the specific outcomes. 2.1 Calculation of Module Credits and Notional Hours The minimum notional hours required by a student for successful completion of this module, as well as the credits allocated to the module, are calculated from the formula supplied by HESQSF (Refer to ECSA document E-01-P and E-24-STA): Notional Hours = W (LTLML + tTTMT) + PTPMP + X + ATA Credits = Notional Hours / 10 Where W is the number of weeks per semester, L and t the number of online lecturing and tutorial periods per week respectively, P is the total number of practicals (virtual or conducted on campus) and A the number of assignments per semester. X is the number of self-study content and TX duration of completing the self-study content in hours. Then TL, TT, TP and TA are the duration of a lecturing period, a tutorial period, a practical period and an assignment in hours, respectively, while ML, MT and MP represents a work factor for lectures, tutorials and practicals respectively. The blended learning notional hours and associated credits for Hydrodynamic Machines III, together with an explanation of the work factors, are calculated below: Factor X Scheduled Contact Code MHM32A Course HYDRODYNAMIC MACHINES III Notional Hrs Online Lecture Weeks 11 Online Tutorials Practicals Evaluation Assign Self-study # credit 40 min period = 0.67h 40 min period = 0.67h 1 periods = 0,67h Per Week Per Semester L 4 t 0 P 4 Time (h) 6 No of Topics 1 A 1 TL 0,67 TT 0,67 TP 0,67 2 TA 6 14,46 ML 3,5 MT 0 MP 3,5 6 144,6 103 0 9 Factor 4 24 Time (h) 2 5 2.2 Module Learning Units and Notional Hours Learning area activity Notional hours Pumps • Positive Displacement Pumps • Centrifugal Pumps • Axial Flow Pumps • Pump Scaling Lectures Formative Test 1 (T1) 35 4 Assignment Laboratory (P1) 6 4.5 Turbines • Impulse Turbine (Pelton) • Reaction Turbines (Francis, Kaplan) • Wind Turbines • Turbine Scaling Lectures Formative Main Test (T2) 36 8 Laboratory (P2) 4.5 Compressors • Reciprocating Compressors • Centrifugal Compressors Lectures 36 Self-study (Stagnation) 2 Main Assessment 12 Total 144 Unit description 6 2.3 Week 1 Semester Programme for the Module Unit descriptor Positive Displacement Pumps Positive Displacement Pumps 2 Reciprocating Pumps Reciprocating Pumps 3 Reciprocating Pumps Reciprocating Pumps 4 Centrifugal Pumps Centrifugal Pumps 5 Reference Notes Fluid Mechanics: Fundamentals and Applications by Yunus A. Cengel Dr. and John M. Cimbala, 2016, 6th Edition APPLIED THERMODYNAMICS FOR ENGINEERING TECHNOLOGISTS, EASTOP MCCONKEY Centrifugal Pumps Pump Scaling 6 Pelton Wheel Pelton Wheel 7 FrancisTurbine FrancisTurbine 8 Francis Turbine Kaplan Turbine 9 Kaplan Turbine Kaplan Turbine Turbine Scaling 10 Turbine Scaling Reciprocating Compressors 11 Reciprocating Compressors Centrifugal Compressors 7 2.4 Assessment of Module Learning Units 2.4.1 Unit 1: Pumps Learning area outcome Teaching and learning activity After completing this learning unit, the student will be able to: - Know the operation, function, application of Positive Displacement Pumps - Know the operation, function, application of Centrifugal Pumps and solve practical related problems - Know the operation, function, application of Axial Flow Pumps and solve practical related problems - Apply the Similarity Laws to execute Pump Scaling - Worked examples are done during the online lectures. - Questions are given to students to attempt during the online lectures. - Solutions to these questions are developed thereafter during the online lectures. - Students make use of laboratory equipment to prove theory Assessment method and instrument Method: Test 1 Instruments: Question paper and memorandum Laboratory sheet with rubric. Assignment on Positive Displacement Pumps Assessment criteria GA assessed Competence indicator GA assessed Competence indicator Students solve questions on the appropriate learning area. Student should remember, understand, apply, and develop the ability to analyse from the knowledge gained to solve welldefined engineering problems. 2.4.2 Unit 2: Turbines Learning area outcome Teaching and learning activity Upon completion of this - Interactive online unit, learners will have lectures are the ability to: presented and - Know the operation, students are given function, application chance to present of the Pelton Wheel their answers to and solve practical descriptive questions related problems Students are - Know the operation, encouraged to function, application make notes during of the Francis and online lectures Kaplan Turbine and make solve practical - Students use of laboratory related problems equipment to - Know the operation, prove theory function, application of Wind turbines - Apply the Similarity Laws to execute Turbine Scaling Assessment method and instrument Method: Main Test Instruments: Question paper and memorandum Laboratory sheet with rubric. Assessment criteria Students solve questions on the appropriate learning area. Student should remember, understand, apply, and develop the ability to analyse from the knowledge gained to solve well-defined engineering problems. 8 2.4.3 Unit 3: Compressors Learning area outcome Teaching and learning activity Upon completion of - Interactive online this unit, learners will lectures are have the ability to: presented and - Know the operation, students are given function, application chance to present of Reciprocating their answers to Compressors and descriptive solve practical questions - Students are related problems encouraged to - Know the operation, make notes during function, application online lectures of Centrifugal Compressors and - Students make use of laboratory solve practical equipment to related problems prove theory 2.5 Assessment method and instrument Method: Main Test Instruments: Question paper and memorandum Laboratory sheet with rubric. Assessment criteria GA assessed Competence indicator Students solve questions on the appropriate learning area. Student should remember, understand, apply, and develop the ability to analyse from the knowledge gained to solve well-defined engineering problems. Assessment Procedure Assessment of the gained knowledge of the student is done by taking into account the following assessment components and associated weighting: Type of assessment Assessment criteria Weight (%) Calculation procedure Test 1 (T1) 25 Test 2 (T2) 40 Assignment 1 10 Laboratory Practical 1 (PM1) 12.5 Laboratory Practical 2 (PM2) 12.5 Course Mark (CM) 0.25T1+ 0.4T2+0.35(Assignment 1+PM1 + PM2) Final Mark (FM) 0.5CM + 0.5EM A student must obtain a minimum CM of 40% to be allowed to write the Main Assessment. It is a further requirement that the student should obtain at least 50% on average for PM1 and PM2 to be able to pass the subject and qualify for the Main Assessment. To qualify for the Re-assessment a student must obtain a final mark of between 45% and 49%. The examination mark (EM) is the mark which a student obtains during the Main Assessment at the end of the semester. 2.6 Graduate Attributes Assessed in this Module No Graduate Attributes will be assessed in this module. 2.7 CUT Graduate Attributes and Action Verbs Used in Assessments CUT Graduate Attributes Practical Definitions 9 Sustainable development Ensuring a sustainable curriculum Incorporating aspects of sustainability in the content. Innovation and problem solving Promoting the iUSE model (investigate, understand, solutions and evaluate). Entrepreneurship Featuring aspects relating to entrepreneurship. Community engagement Encouraging students to benefit their communities. Technologically literate Efficiently using computer hardware and software. Numerate Performing correct manipulations. Teamwork Nurturing group work of two or more students. Communication Promoting good written and oral communication. Citizenship and global leadership Including aspects relating to citizenship, leadership or management. Technical and conceptual competence Operating specific equipment or apparatus effectively. 2.8 and equation Aligning CUT Graduate Attributes to ECSA Graduate Attributes CUT Graduate Attribute Sustainable development Innovation and problem solving Entrepreneurship Community engagement Technologically literate Numerate Teamwork Communication Citizenship and global leadership Technical and conceptual competence 2.9 calculations ECSA Graduate Attribute Sustainability and Impact of Engineering Activity Engineering Design Problem Solving Investigations, experiments and data analysis Independent Learning Ability Engineering Professionalism Engineering methods, skills, tools, including Information technology Application of scientific and engineering knowledge Individual, Team and Multidisciplinary working Professional and Technical Communication Engineering Professionalism Individual, Team and Multidisciplinary working Engineering methods, skills, tools, including information technology Engineering Design Problem Solving Revised Bloom’s Taxonomy used in the formulation of questions Objective Definition Illustrative verbs Level Creating Designing experiments, devices, process, and products Generate; combine; construct; formulate; propose; assemble; design; predict; improve HOq- Highest level dependent on students reasoning ability 10 Evaluating Choosing from among alternatives and justifying the choice, optimizing processes, making judgments about the environmental impact of engineering decisions, resolving ethical issues Assess; justify; conclude; evaluate; verify; confirm; determine HOq Analysing Solving well-defined problems, developing process models and simulations, troubleshooting equipment and system problems Distinguish; compare; contrast; differentiate; classify; categorize; analyse HOq Applying Applying course material to solve straightforward problems Change; demonstrate; modify; solve; use; show; calculate HOq Understanding Paraphrasing text, explaining concepts in jargon-free terms Explain; convert; estimate; rearrange; summarize; derive; describe; review; relate LOq Remembering Repeating memorised information Name; list; state; define; describe; label; sketch; discuss; identify; select; insert; complete LOq - Lowest level dependant on student’s memory ability 11 3. LEARNING COMPONENT 3.1 Guidelines for improving performance in the module Attend all classes. Prepare for each lecture by using this learning guide. Unless you ask questions, the lecturer will assume that you understand all the theory and will commence with applications. If you do not understand, bring it to the lecturer’s attention as soon as possible by asking specific questions. During the years, it has been proven that the following guidelines will result in academic success: • Read the appropriate section in your learner guide carefully before attending the lecture. • You should study the completed section in depth, as soon as possible after the lecture, but at least before the following lecture. • You must complete all the relevant homework exercises, assignments or questions for each lecture topic. Spend more time thinking about the problem and referring to resources mentioned in the learning units. Try to answer the question to the best of your ability. If you have made any mistake, small as it may be, correct it in class and if you are still not sure about the solution, ask the lecturer for further explanation. • Concentrate on understanding the logic of the module instead of concentration entirely on the technique used. • Work out all class examples, self-study work and laboratory work thoroughly and completely. • Test your increasing knowledge daily. • • • • • • When answering any assessment: Read the question carefully; make sure you know what is being asked. Then, stop and think. Write your answer systematically and as neat as possible. Show all your calculations at all times, i.e. how you arrived at the solution. Make sure that you manage your time effectively, in other words, do not spend more time on one question than is available. Work fast and accurately! Work through tutorials, previous test and examination papers, in order to get used to the style and standard of the papers. 12 3.2 Assignment/Project Submittal and Identification Sheet RESULT% Student number(s): Surname and initials: Programme: B Eng Tech (Mechanical Engineering) Module name: Hydrodynamic Machines III Module code: M Graduate Attribute (GA) assessment: 1 H 2 M 3 4 3 5 2 6 7 A 8 9 10 Assignment/project number: Due date: 2 0 2 1 M M D D Lecturer: DECLARATION OF OWN WORK: I, ______________________________________________________________, student number______________________________________, hereby declare that the content of this assignment/project is my own work, as defined and constituted in the Rules and Regulations of the Central University of Technology, Free State (Please consult the Programme Guide of the Department). Signed: ________________________________ Date: ________________________________ 13 4. LABORATORY COMPONENT Attendance at laboratories is compulsory and students are advised to spend some time in the laboratories for preparation and developing skills in the use of equipment and software packages for solving well-defined problems. The laboratory weights and their due week numbers for the module are given in section 2.2 and 2.4. Each laboratory work is important since it forms part of the assessment of the module. Practical Hydrodynamic Machines III Experiment 1 Characteristic Curves of a Centrifugal Pump Experiment 2 Characteristic Curves of a Pelton Wheel 14 4.1 Laboratory/Practical Submittal and Identification Sheet RESULT% Student number(s): Surname and initials: Programme: B Eng Tech (Mechanical Engineering) Module name: Hydrodynamic Machines III Module code: M H M 3 2 A Assignment/project number: Due date: 2 0 2 1 M M D D Lecturer: DECLARATION OF OWN WORK: I, ______________________________________________________________, student number______________________________________, hereby declare that the content of this assignment/project is my own work, as defined and constituted in the Rules and Regulations of the Central University of Technology, Free State (Please consult the Programme Guide of the Department). Signed: ________________________________ Date: ________________________________ 15 5. SAFETY COMPONENT 5.1 General Safety Close attention should be given to all aspects of safety throughout training, and the highest possible standards insisted upon. There is a special need to emphasize the fundamental safety rules of behaviour, dress and practice when the trainee enters the workshop. Instructors have a particular responsibility to set a good example and to check without delay any departure from safe working practices by trainees. Individual responsibilities in respect of the safety of all persons in the vicinity of the working area must be clearly understood by everyone. It is essential to develop safe working habits. 5.1.1 What to do • • • • • • Think before you act. Ask if in any doubt. Help to keep gangways clear. Keep your bench and working area tidy. Find out the position and type of fire appliances available. Report all accidents to your supervisor 5.1.2 What not to do • • • • • • • Do not run. Do not play practical jokes. Do not touch any equipment or try out machines unless authorized to do so. Do not leave rubbish lying about. Do not walk under suspended loads. Do not attempt to give first aid unless you are competent to do so. Do not throw things. 5.1.3 Further points to consider • • • • • • • • • 5.2 Wear your overalls buttoned up. Roll up your overall sleeves above the elbows or button up the cuffs. Keep hair short or wear a cap. Obey all safety rules and signs. Report any accident, however slight. Have all injuries properly treated, however minor. Do not wear torn overalls. Do not wear rings or a watch when working. Do not take chances. Hand and Power Tools All tools must be used in a safe manner, in particular sharp tools such as knives or screwdrivers. These should be held in such a way as to minimize the chances of cuts to the user if they slip from the work. The snipping of wires with side-cutters can lead to bits of wire entering the eye and therefore goggles should be worn for such work. These tools must be electrically safe and should be inspected regularly for cable wear and loose 16 connections. They should never be used without a guard or some form of protection fitted and adjustments to these tools should only be made once they have been disconnected from the supply. Soldering irons should always be kept covered to prevent accidents leading to burning of the skin or of the flex of the soldering iron. The work being soldered or de-soldered should be securely gripped and the work should take place on a heat-proof mat. Excess solder should be wiped off using a wet cloth or sponge and should not be flicked off. Care should also be taken to avoid breathing in the fumes of the flux. 5.2.1 Protective Clothing Whether or not this is worn depends on the regulations and on the work taking place in the workshop. Long hair should be tied back and if hair preparation is used the hair should also be covered whenever working close to a naked flame. 17