Exergy Analysis of an Air Conditioning System Using Air-Cooled Condenser at Different Ambient Conditions with Different Volume Flow Rates of Air

Abstract

In this paper, an analysis of exergy of an air conditioner having condenser of air-cooled type is presented. The prime objectives of this paper are to analyse all the four main components (condenser, expansion valve, compressor and evaporator) of vapour compression refrigeration system individually and then to quantify and identify the sites having the largest exergy losses. The exergy efficiency is also calculated at different ambient conditions, i.e. (30, 32, 34, 36 and 38 °C) with different volume flow rates of air, i.e. (0.08, 0.1, 0.12, 0.14 and 0.16 m3s).The results showed that exergy loss is highest in the compressor. The order of exergy loss is (Exergy Destruction)compressor > (Exergy Destruction)condenser > (ExergyDestruction)evaporator > (ExergyDestruction)expansionvalve. In addition, the exergy efficiency of the system varies from 31.10 to 34.52%.