PERFORMANCE ANALYSIS OF AIR CONDITIONING SYSTEM FOR AN AUTOMOBILE BASED ON AMMONIA -WATER VAPOUR ABSORPTION REFRIGERATION SYSTEM RUN BY EXHAUST WASTE HEAT OF DIESEL ENGINE

The air conditioning system of automobiles is mainly uses Vapour Compression Refrigerant System (VCRS) which absorbs and removes heat from the space to be cooled and throws out the heat to atmosphere. In vapour compression refrigerant system, the system utilizes power from engine shaft as the input power to drive the compressor of the refrigeration system, hence the engine has to produce extra work to run the compressor of the refrigerating system utilizing extra amount of fuel. This loss of power of the motor vehicle for refrigeration can be ignored by utilizing another refrigeration system i.e. a Vapour Absorption Refrigerant System (VARS). As well known the machines based on VARS required low grade energy for operation. Hence in such types of system, a physicochemical process replaces the mechanical process of the VCRS by utilizing energy in the form of heat rather than mechanical work. We used as a experimental set up installed at I.C .Lab of Agnos college of technology in RKDF University Bhopal Madhya Pradesh. In this set up take a 5 liters capacity four cylinders four stoke diesel engine coupled with rope brake dynamometer and connected with three fluid 0.8 KWh/day ammonia water vapour absorption refrigeration system and run by exhaust waste heat of diesel engine. The whole setup is very useful in actual automobile air condition system and totally environmental friendly.