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Introduction Lecture. Prepared by Dr. Mahmoud Bassiouny. University Pharos Faculty Engineering Programme Specification A- Basic Information 1- Programme title: Mechanical Engineering 2- Programme type: B. Sc. 3- Department Mechanical Engineering
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Introduction Lecture Prepared by Dr. MahmoudBassiouny
University Pharos Faculty Engineering Programme Specification A- Basic Information 1- Programme title: Mechanical Engineering 2- Programme type: B. Sc. 3- Department Mechanical Engineering 4- Coordinator Dr. MahmoudBassiouny
Course code: (ME 240)Course title: Refrigeration and Air Conditioning (1) • Lecture: E 214 – Tue from 8:30 to 11:20 • Tutorial: E 226 – Mon from 8:30 to 9:20 • Tue from 11:30 to 12:20 • Instructor:Dr. MahmoudBassiouny • Room: E223 • Office hours: Tue (from 1230to 2), • Assistant: EmanMohey El-Deen • Room: E 209 • e-mail: eman.mohey@pua.edu.eg • Office hours: Mon– from 9:30 to 11:20 • Wed– from12:30 to 2:20 • Prerequisites : Thermodynamics (1)(ME 230)
1-Course Aim: Introducing the student to the: * Need of refrigeration systems in different applications. * Reversed Carnot (Ideal) cycle and the vapor compression cycle (VCC). * Main components of the VCC. * Losses encountered in Actual VCC. * Multi-stage compressors, condensers, evaporators, expansion valves, and flash tanks. * Cooling load calculations. * Psychometric chart. * Moist air psychometric processes. *Air conditioning cycles. * Cooling load calculations.
2-Intended Learning outcomes (ILOs): • a- Knowledge and understanding: • Describe different refrigeration systems and the use of each. • Describe basic design features of vapor compression cycle and show how to choose the proper refrigerant. • Describe modifications in the vapor compression cycle to suit different applications. • Describe refrigerating (Cooling) load calculations. • Describe properties of Psychometric chart and how to use it. • Describe different processes of moist air and how to calculate its properties. • Describe characteristics of different air conditioning cycles.. • Describe the different elements which contribute sensible and latent heat gain to the cooling load estimation.
b- Intellectual skills • Demonstrate a range of practical and general skills in the area of refrigeration and air conditioning. • Examine the capability to perform engineering analysis. • Solve problems and discuss solutions. • Calculate compressor work. • Determine the condenser heat rejection. • Determine the evaporator heat gain • Select proper refrigerant. • Examine the performance of the expansion device. • Determine the refrigeration effect and cycle coefficient of performance. c- Professional and practical skills • Select the proper refrigerant for a certain application. • Select the proper vapor compression cycle to carry the required refrigerating load.
Compare moist air properties using Wet and Dry bulb Temperatures. • Differentiate between the proper air conditioning process for a certain application. • Design the air conditioning processes on the psychometric chart for a certain system • Analyze the cooling load required for an air conditioning system d- General and transferable skills • Logic thinking and capability of data analysis. • Communication with the others. • Team work skills. • Experience of report writing and presentation, and self management. • Internet surfing
4– Teaching and learning methods • * Lectures and Exercises • * White board presentation. • * Class and tutorial activities. • * Answering and raising questions during office hours 5- Student assessment methods • Reports and assignments • Quizzes • Written Exams • Final exam 6-Course assessment: Mid-Term Examination …………………………..… 30 %Quizzes ………………………...……………………..…… 10 %Other types of assessments &H.Ws………..…. 10 %Final-Term Examination: ………………………….… 50 %
7-1 Reference Books: • * Refrigeration and Air Conditioning, W.F. Stoecker and J.W. Jones, McGraw Hill, 1982. • * Refrigeration and Air Conditioning, C.P. Arora, Tata McGraw Hill, 1982. 7-2 Periodicals, Web Sites, ..., etc: * ASHREA handbook and Journals. * ASME Journals. * International Journal of Heat and mass transfer. *International Journal of Refrigeration *ASHRAE Transactions * Energy and enviroment. * Energy.