太阳能直膨式喷射制冷系统性能分析

介绍了太阳能直膨式喷射制冷的原理与工作流程。对于在确定的蒸发器与冷凝器工作压力条件下太阳能集热器内水温的变化对制冷机性能系数的影响也进行了分析,并探究了制冷机平均制冷量随一天不同时间段的太阳能有效集热量变化的规律。结果表明,太阳能直膨式喷射式制冷技术能够较好的满足实际制冷需求,符合节能低碳的用能要求。

Performance Analysis on a Direct Expansion Solar-driven Ejector Refrigeration System

The principle and working process of a direct expansion solar-driven ejector refrigeration system is introduced in this paper. Under determined conditions of pressure in the evaporator and condenser,the effect of different water temperature in the solar collector on the coefficient of performance( COP) of refrigeration system is analyzed. Furthermore,the variation rule of average cooling capacity with effective solar heat-collecting capacity in a different time period of one day is also discussed. The result shows that the direct expansion solar-driven ejector refrigeration system can generate enough cooling capacity to satisfy cooling demand and helps meet the requirements of energy saving and low carbon.