B.Tech. Agricultural Engineering · Semester 6

Refrigeration and Air-conditioning

PFE6.6 Processing & Food Engineering

Syllabus lecture plan

1. 01Definition of pure substance, phases of a pure substance, phase change process of a pure substances; compressed liquid & saturated liquid, saturated vapour and superheated vapour, saturated temperature & saturated pressure
2. 02Latent heat: latent heat of fusion, latent heat of vaporization; liquid vapour saturation curve; property diagram for phase change process, T-V diagram, P-
3. 03Property tables, state- liquid & vapour states, saturated liquid-vapour mixture, 1 superheated vapour, compressed liquid
4. 04Principles of refrigeration, units, terminology, production of low temperatures
5. 05Air refrigerators working on reverse Carnot cycle and Bell Coleman cycle
6. 06Vapour refrigeration-mechanism, P-V, T- S,P-h diagrams,vapour 4 compression cycles, dry and wet compression, super cooling and sub cooling
7. 07Vapour absorption refrigeration system
8. 08Common refrigerants and their properties
9. 09Thermodynamic properties of moist air, perfect gas relationship for 2 approximate calculation, adiabatic saturation process, wet bulb temperature and its measurement, psychometric chart and its use
10. 10Elementary psychometric processes
11. 11Air conditioning: principles, type and functions of air conditioning, 1 physiological principles in air conditioning
12. 12Air distribution, factors considered for designing an air-conditioning system
13. 13Types of air conditioners and their applications
14. 14Cold storage plants; calculation of refrigeration load and cold storage design 3 considerations

Part of the B.Tech. Agricultural Engineering curriculum (ICAR recommendations). Upload or find notes, previous-year papers and quick-revision reels for each lecture on theciae.