Computer Simulation of an Automobile Air-Conditioner with Ambient Temperature Effects

Abstract

Theoretical and experimental studies were conducted to analyze and simulate the performance of instrumented automobile air-conditioner , using R134a as a working refrigerant . The experimental work was carried out on an available automobile air-conditioner unit with ambient temperature effects on the cycle performance . A computer program is constructed to analyze , and simulate the working and performance of instrumented automobile air-conditioner with the effect of ambient temperature on the performance of compressor , condenser , condensing unit , evaporator , and complete refrigeration cycle . The experimental performance equations of the compressor , condenser , and evaporator are used in the mathematical simulation . The comparison between the mathematical model and experimental results of refrigeration load , compressor work , condenser load , and coefficient of performance for different ambient temperatures showed a good agreement .