LIQUID DESICCANT SYSTEM; EVAPORATIVE COOLING SYSTEM; HEAT RECOVERY; AIR CONDITIONING; ROTARY DEHUMIDIFIER

Abstract

The rise in global temperatures caused by both natural and human factors—particularly the widespread use of fossil fuels—poses a serious threat to the environment and human health. Alongside environmental challenges, conventional air conditioning systems have proven inefficient due to high energy consumption and low performance in humidity control, especially in hot and humid regions. One innovative approach to reducing energy consumption and increasing efficiency is the use of absorption cooling systems, which absorb air moisture using liquid or solid sorbents and regenerate them using renewable heat sources such as solar energy. In this study, the performance and modeling of absorption cooling systems with different configurations of flat membrane and shell-and-tube heat exchangers were investigated. The main goal is to identify the best sorbent and system configuration to achieve maximum efficiency under similar climatic conditions. Predicted simulations show that the absorption cooling system provides an average total cooling capacity of 2.12 kW, with an overall coefficient of performance (COP) of 0.44 and a collector efficiency of 49% (based on absorber surface area).