Theoretical and experimental research on solar-driven single stage ejector refrigeration system

Abstract

This paper presents effect of operating conditions and ejector geometry on the single stage ejector refrigeration using water as refrigerant, through the developed computer simulation program. In addition, utilization of the program is to design and fabricate solar driven 2 Tons single stage refrigeration system which is operated at generator and evaporator temperature of 110oC and 10oC, respectively. Parameters of operating conditions and ejector geometry, which are investigated, are generator and evaporator temperature and pressure and nozzle throat, inlet diameter of mixing chamber, nozzle exit plane and ejector throat. From testing results of solar driven single stage ejector refrigeration system, it is found that monthly average solar fraction, average COP and chilled water temperature is 0.60, 0.59 and 21oC, respectively.