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首页> 外文期刊>Journal of Heat Transfer >Optimization of Printed Circuit Heat Exchanger Using Exergy Analysis
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Optimization of Printed Circuit Heat Exchanger Using Exergy Analysis

机译：利用（火用）分析优化印刷电路换热器。

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摘要

A printed circuit heat exchanger (PCHE) with zigzag flow channels in a double-faced configuration was optimized to enhance its thermal-hydraulic performance. Using exergy analysis, the objective function was defined as the net exergy gain of the system considering the exergy gain by heat transfer and exergy loss due to friction in the channels. A Reynolds-averaged Navier-Stokes (RANS) analysis and surrogate modeling techniques were used for the optimization. Three geometric variables were selected as the design variables. The objective function was calculated at each design point through RANS analysis in order to construct a response surface surrogate model. Through the optimization, both the thermal and hydraulic performances of the PCHE were improved with respect to the reference geometry by suppressing flow separation in the channels.
机译：带有锯齿形流道的双面构造的印刷电路换热器（PCHE）已得到优化，以增强其热工液压性能。使用火用分析，将目标函数定义为系统的净火用增益，其中考虑了传热的火用增益和通道中的摩擦导致的火用损失。使用雷诺平均Navier-Stokes（RANS）分析和替代建模技术进行优化。选择了三个几何变量作为设计变量。通过建立RANS分析在每个设计点计算目标函数，以构建响应面替代模型。通过优化，通过抑制通道中的流动分离，相对于参考几何形状，PCHE的热性能和水力性能均得到改善。

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