Exergy analysis of evaporative cooling for reducing energy use in a Malaysian building

To reduce energy consumption in the buildings and minimize negative environmental impacts, it is necessary to determine the operating condition that provides optimum system performance. Entropy or exergy analysis can be used as a reliable tool for analyzing energy consumption and environmental impact. This paper describes the modelling and optimization analysis for cooling system in the building. Exergy technique has been used to evaluate overall and component efficiencies and to identify thermodynamic losses. The method is well suited for analyzing thermodynamic model and identified exergy losses of air conditioning application in a building.

The exergy analysis of an evaporative cooling applied in Malaysian building has been presented through the exergy balance of an open system. The evaporative cooling is a feasible technology that can reduce mechanical cooling and energy requirement in air conditioning application that will effect to decrease emissions from electricity generation in Malaysia. Thus, further work should be conducted to improve the effectiveness of the evaporative cooling.