紧凑式换热器全高度传热特性研究  

Study on the Heat Transfer Behavior of Compact Heat Exchanger for All Altitudes

作　　者：杨涵[1] 杨春信[1] 周亚峰[2] 

机构地区：[1]北京航空航天大学,北京100191 [2]沈阳发动机设计研究所,沈阳110015

出　　处：《民用飞机设计与研究》2015年第1期14-18,共5页Civil Aircraft Design & Research

基　　金：国家重点基础研究发展计划(973计划)成果之一;项目编号:2012CB720106

摘　　要：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。This paper describes the heat transfer model of the compact heat exchanger in three levels. Heat trans- fer behavior of heat exchangers in air cycle refrigeration system is analyzed in two-wheel bootstrap air cycle system with low pressure water extraction system or with high pressure water extraction system. The agreement between the calculated results and the experimental data was very good. The results show that the behavior of compact heat ex- changer under different conditions can be obtained with less experimental data. The approach can meet the require- ments of engineering calculations and also provide a theoretical basis to evaluate the heat exchanger.

关 键 词：空气循环制冷系统 换热器 传热特性 全高度 

分 类 号：V245.34[航空宇航科学与技术—飞行器设计]