ADVANCEMENT IN AUTOMOBILE AIR-CONDITIONING SYSTEM BASED ON JET REFRIGERATION CYCLE

Waste heat operated cooling is comprised of many attractive features in domestic as well as industrial uses and is way towards a sustainable energy system. The performance of such cooling systems is strongly dependent on running conditions of an engine. These cooling systems can be efficiently operated in locations where the sufficient amount of exhausted heat from an engine is available. A waste heat-driven jet refrigeration system has been selected as a case study for a further detailed investigation. In which the exhausted heat from an engine used as a driving agent for the cooling cycle. The low temperature heat source can be used to drive the ejector refrigeration cycle, making the system suitable for integration with the heat exchanger. System performance depends on the choice of working fluid (refrigerant), operating conditions and ejector geometry. The most significant part of the thesis is to analyze the waste heat coming out from a an engine and use of this heat to drive the cooling system of the vehicle to provide comfortable conditions in the interior without using any additional mechanical work as used in current scenario.