Refrigeration and Air conditioning
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Refrigeration and Air conditioning Syllabus — Unit-wise Content
The official GTU curriculum for Refrigeration and Air conditioning (subject code 3171918) as prescribed for Mechanical Engineering · Semester 7 divides the course into 6 units, covering 32 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (3171918)Unit 1 Introduction and Refrigerant
- Brief history and need of refrigeration and air conditioning
- methods of producing cooling
- ton of refrigeration
- coefficient of performance
- types and application of refrigeration and air condensing systems
- Recapitulation of desirable properties of refrigerants
- secondary refrigerants
- future industrial refrigerants
Unit 2 Air refrigeration
- Aircraft refrigeration
- working and analysis of Simple
- Reduced ambient and Regenerative air refrigeration systems
Unit 3 Compound Compression VCR system
- Multiple evaporators with back pressure valves and with multiple expansion valves without flash inter cooling
- analysis of two evaporators with flash intercooler and individual expansion valve and multiple expansion valve
- cascade refrigeration system
Unit 4 Absorption refrigeration system
- Practical H2O -NH3 cycle
- LiBr – H2O system and its working
- h-x diagram and simple calculation of various process like adiabatic mixing and mixing with heat transfer
Unit 5 Refrigeration system components
- comparison and selection of compressors
- expansion devices and evaporators
- refrigeration piping accessories
- evacuation and charging of refrigerant
- properties and classification of thermal insulation
Unit 6 Human comfort and Load analysis
- Selection of inside design conditions
- thermal comfort
- heat balance equation for a human being
- factors affecting thermal comfort
- Effective temperature
- comfort chart and factors governing effective temperature
- selection of outside design conditions Site survey
- outdoor and indoor design conditions
- classification of loads
- flywheel effect of 9 Subject Code: 3171918 w.e.f
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