DEVELOPMENT OF HIGHER COOLING CAPACITY REFRIGERATION UNIT WITH HOT CHAMBER

Mechanical Engineering

The aim of our project is to improve coefficient of performance of system. To improve the coefficient of performance, it is to require that compressor work should decrease and refrigerating effect should increase. Modifications in condenser are meant to increase degree of sub-cooling of refrigerant which increased refrigerating effect or more cooling water is required in condenser. A vapour compression cycle that is used in most household refrigerators, freezers and cold storages. In this cycle a circulating refrigerant enters a compressor as low pressure vapour at or slightly above the temperature of the refrigerator interior. The vapour is compressed and exits the compressor as high-pressure superheated vapour. Generally Brines are secondary refrigerants and are generally used where temperature are required to be maintained below the freezing point of water that is 00C.In this case the temperature involved is above the freezing point of water(00C), then the water is commonly used as secondary refrigerant. The brines commonly used are calcium chloride(CaCl2),sodium chloride that is common salt (NaCl) and glycols such as ethylene glycol, propylene glycol, etc. But In our project we are using Ethylene glycol (R22R36) (C2H4 (OH)2) as a secondary refrigerant

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