Performance Study of a NH3/LiNO3 Absorption Chiller Under South Algerian Climate

Abstract

This study investigates the feasibility of implementing an NH3/LiNO3 absorption chiller under the climatic conditions of Bechar, Algeria. Using energy and exergy analysis techniques, the research evaluates the system's performance under various operating conditions. The absorption cycle is modeled using Engineering Equation Solver (EES) to assess the impact of key parameters on the coefficient of performance (COP). Results indicate that the COP is significantly influenced by generator, condenser, and absorber temperatures. The COP increases from 0.10 to 0.524 as the generator inlet heating water temperature rises, and from 0.10 to 0.628 with increasing absorber temperature. However, the COP decreases from 0.58 to 0.31 as the evaporator temperature increases, and from 0.627 to 0.202 with increasing condenser temperature. The study contributes to ongoing efforts to develop sustainable cooling solutions tailored to regions with extreme climates, highlighting the potential of NH3/LiNO3 absorption chillers for solar-driven cooling applications in hot and arid environments like southern Algeria.