Design and Performance Analysis of a Miniature Vapor Absorption Refrigeration System: COP Evaluation and Optimization

This study focuses on optimizing the performance of Miniature Vapor Absorption Refrigeration Systems (MVARS) by enhancing their Coefficient of Performance (COP).The aim is to create a compact, energy-efficient M-VARS that makes use of cost-effective, low-temperature heat sources, such as solar energy or waste heat, to provide a sustainable cooling solution for off-grid locations and eco-conscious applications. This study advances the development of energy-saving cooling technologies with potential uses in portable devices and environmentally responsible businesses. Previous research has demonstrated that lithium chloride-water vapor absorption refrigeration systems outperform their lithium bromide-water counterparts in terms of COP and generator load, particularly at lower evaporator temperatures. Furthermore, scholarly investigations have explored solar-driven absorption cooling innovations, examining the efficiency of different working pairs and configurations in heat-based vapor absorption cooling systems. In conclusion, this study of a small-scale vapor absorption refrigeration system evaluates its efficiency (COP) and suggests ways to optimize performance. The findings offer insights for enhancing the energy efficiency of small cooling systems.