Simulation of the performance of continuous solar-powered adsorption refrigeration system for optimal use in Zaria, Nigeria

Abstract

Cooling without electricity is the reason for solar adorption refrigeration systems. The epileptic power supply, especially in developing countries, makes solar refrigeration a very attractive option. This is coupled with the abundance of solar energy, making it a favourable alternative power source amongst other power mixes. This article introduces a solar adsorption refrigerator that continually generates cooling using solar energy as a standalone. Thus, this study aims to simulate and analyse the feasibility of refrigeration from a system that uses a blend of zeolite-based adsorbents and water (H2O) as adsorbate pairs via four solar concentrating collectors, two for adsorption and two for desorption using TRNSYS 16.0 simulation software. Unlike the conventional refrigeration system, the compressor was replaced with a solar concentrating collector while other components, such as the condenser, evaporator, and throttling valves, remained. The findings demonstrate that the technology delivered continuous cooling, and due to the comparatively intense beam radiation during the middle of the day, the cooling rate increased.