太阳能双喷射式制冷系统性能计算分析

建立了双喷射式制冷系统的物理模型和数学模型，计算了太阳能双喷射式制冷系统中气体喷射器和气-液喷射器的性能参数、系统性能参数随制冷剂和工况的变化。结果表明，在给定的发生温度、蒸发温度、冷凝温度范围内，气体喷射器的喷射系数和系统COP均随发生温度和蒸发温度的升高而增大，随冷凝温度的增大而减小。气-液喷射器的喷射系数则随发生温度的升高而减小，除水外，均随冷凝温度的升高而减小。

Performance computing analysis of solar powered bi-ejector refrigeration system

Physical and mathematical model are set up to analyze and simulate the working process of solar powered bi-ejector refrigeration system. The performance of ejectors, as well as COP of system, is computed when refrigerant and operating condition change. The results show that, under the given range of generate, condenser and evaporator temperature, the entrained ratio of steam-steam ejector and COP ascend with the increasing of generate temperature and evaporator temperature and decreasing of condenser temperature. As far as steam-liquid ejector is concerned, its entrained ratio becomes larger when generate temperature increases and smaller when condenser temperature increases except water as refrigerant.