The cooling mechanism and some basic characteristics of the system, such as entrainment ratio, coefficient of performance (COP) were analyzed. These system characteristics in use of R22 and water respectively as a working fluid were calculated.

• 描述了其工作原理 ；讨论了关于喷射系数和系统性能系数COP的计算方法 ；分别采用R2 2和水为制冷工质 ；进行多次计算取得最大喷射系数 ；并对系统性能系数COP作了定量的计算 .