UNIT 1:
Introduction to refrigeration
Unit of refrigeration capacity
Refrigerants - classification and thermodynamic properties
Reversed carnot cycle- its Limitations
Review of Second law of thermodynamics and interpretation
Production of low temperatures - principles and process
Ozone depletion potential
UNIT 2:
Simple vapour compression refrigeration, p-h, t-s diagram
Energy ratios and Power consumption of a refrigerating machine
Air refrigeration system – reversed Brayton cycle
UNIT 3:
Evaporator- dry and flooded type, liquid cooling evaporator
Condenser- water cooled and air cooled condenser
Compressor - Reciprocating type compressors
Expansion valve -thermostatic expansion valve.
UNIT 4:
Cryogenics – Linde and Claude system for liquefaction of air
Cold storage- construction, insulation and operation
Design of cold storage unit
Calculation of refrigeration load in cold store
UNIT 5:
Traceability- Application of RFID in cold chain
Introduction, Components of cold chain
Refrigerated distribution and transport systems
Role of refrigeration in food production - candy manufacture, beverage processing, bakery products
