王伟,冯浩然,岳娜,雒青,张建元,耿如意,张国龙

• 1:西安热工研究院有限公司
• 2:西安交通大学能源与动力工程学院
• 3:中车哈尔滨车辆有限公司

摘要(Abstract)：

作为布雷顿循环系统中的重要冷端部件，气体冷却器的性能对循环系统结构紧凑性和运行高效性有重要影响。分析了一种新型横流印刷电路板式换热器（printed circuit heat exchanger,PCHE）—板翅混合式气体冷却器的工作性能及影响因素，对该种换热器建立了一个数值计算模型，并编写MATLAB程序验证其可靠性；基于此，对该类冷却器进行了设计，其功率密度均在1 MW/m~3以上，属于紧凑型换热器；其次进行了变工况性能分析，给出了冷却器的压降和换热性能随循环工质和冷却空气进口状态的变化规律，并比较了布雷顿循环工质为超临界二氧化碳、氮气、空气时冷却器的换热特性和压降特性，结果表明，冷、热流体流量的改变对换热特性的影响最明显。研究结果对布雷顿循环空冷换热器的设计与运行具有参考意义。

关键词(KeyWords)： 布雷顿循环;空冷换热器;变工况计算;换热特性;压降特性

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目（2019YFB1505400）~~

作者(Author): 王伟,冯浩然,岳娜,雒青,张建元,耿如意,张国龙

DOI: 10.19666/j.rlfd.202310161

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