Theoretical and experimental study on solar ejector cooling system using R236fa

Abstract

Compared with the traditional refrigerants, a solar ejector cooling system using R236fa was developed. Based on the established computation model, the operating performance of the ejector cooling system was simulated. Combined with the numerical computation, an experimental study on the system using R236fa, R141b and R123 was carried out. The experimental conditions were evaporator temperature (5-10°C), condenser temperature (30-36°C) and generator temperature (82-94°C). It was found that with refrigerant R236fa the optimum Coefficient of Performance (COP) (=0.413) of the ejector cooling system and the optimum overall COP (=0.243) of the solar ejector cooling system could be obtained.