【摘要】 利用热管和喷射器复合所组成的空调系统是一种可利用太阳能和备类余热的无泵型新型空调系统。该系统利用喷射器代替压缩机,利用热管内的毛细芯实现工质循环。本文分析了喷射器的流动特性,采用一个简化的一维模型计算了喷射器的喷射系数。设计了一种专用的小型内置式喷射器,对一太阳能热管喷射式空调系统的制冷特性和性能系数进行了数值模拟。模拟计算表明,喷射器的结构和运行特性对热管喷射式制冷系统的性能有明显的影响。更多还原

【Abstract】 Heat pipe ejective air conditioner is a new no pump system, which can use solar energy and other low-grade heat sources. A mini-ejector and a heat pipe with capillary structure in this new system perform a flow cycle of the working fluid. In this paper the flow characteristics in the ejector are analyzed and a mini-ejector is designed. Based on the designed ejector, the cooling capacity and system performance of the air conditioner driven by solar energy is simulated numerically. The results show that the structure parameters and flow characteristics of the ejector have a great effect on the system performance.更多还原