Article,

Parametric Studies of an Automotive Air Conditioning System

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AMAE Int. J. on Production and Industrial Engineering, (2012)

Abstract

The work carried out is the performance modeling of an automotive air-conditioning system. The modeling consists in describing the characteristics of the various components of the system and the study of their characteristics. The components are the heat exchangers (evaporator and condenser), the expansion valve and the compressor. Suitable functional relations are used in the mathematical description of these components. The component sub-models are integrated to form a cycle simulation model. The methodology for the modeling of individual parts is presented along with the flow chart of complete computer code written for the purpose. Results are obtained for various parameter values of condenser inlet air temperature, condenser face velocity and the rotational speed of the compressor. A considerable drop in the performance of the cycle is observed when the refrigerant tends to fall into the two-phase region at the condenser outlet. The decrement in the performance is because of the insufficient heat transfer at the condenser.

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