发展了可工程应用的紧凑式换热器传热模型,从三个层次对换热器进行讨论。针对空气循环制冷系统中的换热器,分析了二轮低压除水和二轮高压除水空气循环制冷系统中换热器的传热特性,计算结果与试验数据符合良好。该方法利用较少的实验数据即可得到全高度特性,不仅满足工程计算的要求,而且为评估换热器性能提供了理论依据。 An engineered compact heat exchanger heat transfer model was developed and the heat exchanger was discussed at three levels. In view of the heat exchanger in the air cycle refrigeration system, the heat transfer characteristics of the heat exchanger in two cycles of low pressure water removal and two cycles of high pressure dewatering air circulation refrigeration system are analyzed. The calculated results are in good agreement with the experimental data. The method can obtain full height characteristics with less experimental data, which not only meets the requirements of engineering calculation, but also provides a theoretical basis for evaluating the performance of the heat exchanger.