The course covers refrigeration definitions, applications, and methods of refrigeration. The course also covers theoretical and actual vapour compression refrigeration cycles. Analysis of simple vapour compression refrigeration cycle and effect of operating conditions using p-h diagram will be covered. Different calculations such as COP, compressor power, cooling capacity, condenser heat load, refrigeration effect, etc. will be covered. The effect of superheat and subcooling on the performance of refrigeration cycle will be covered. Types of refrigerants and refrigerant characteristics are also included. The impacts of the effect of different types of refrigerants on the environments such as global warming and ozone depletion will be studied. The types of different components of refrigeration units such as compressors, evaporators, condensers, and expansion devices as well as auxiliaries will be covered.