LiBr-H_2O吸收-喷射复合制冷循环流程的热力参数研究

Analysis of Parameters for LiBr H 2O Absorption Ejector Hybrid Refrigeration System

ＬｉＢｒ－Ｈ２Ｏ吸收－喷射复合制冷循环流程是由运行参数不同的换热设备组成的，各换热设备的有效传热温差不但影响到整个流程的性能及设计过程中有效传热面积的确定，而且也影响到系统的经济性．将几个主要换热设备的传热温差、溶液浓度差以及发生器温度作为设计参数，并进行分析计算，以确定这些参数的适宜范围，为ＬｉＢｒ－Ｈ２Ｏ吸收－喷射复合制冷系统的优化设计提供了理论基础．

LiBrH 2O absorption ejector hybrid refrigeration system consists of several heat exchangers operating at different conditions. There prevails an effective temperature difference of heat transfer that affects the system performance, the effective area of heat transfer in each heat exchanger and hence the cost of refrigeration. Several effective temperature differences of heat transfer in different heat exchangers are considered for the solution concentration between the generator and the absorber and the temperature in the generator. The suitable range of these parameters are analyzed on the basis of cost optimization.