印刷电路板式换热器传热性能及温度场数值模拟研究方法  

Numerical Simulation Research Method for Heat Transfer Performance and Temperature Field of Printed Circuit Board Heat Exchangers

作　　者：谷丹丹 康艳波 GU Dandan;KANG Yanbo(China Institute of Atomic Energy,Beijing 102400,China;Beijing Xinghang Electric Equipment Co.Ltd.,Beijing 100074,China)

机构地区：[1]中国原子能科学研究院,北京102400 [2]北京星航机电装备有限公司,北京100074

出　　处：《工业加热》2025年第2期37-41,共5页Industrial Heating

摘　　要：换热器在众多领域都有广泛应用,而印刷电路板式换热器作为一种新型换热器,其传热性能和温度场的研究尤为重要。旨在通过数值模拟,深入了解其传热性能,优化温度场分布,提高换热效率。构建四种直线型、S型、Z型和翼型通道类型的印刷电路板式换热器物理模型,在其基础上构建四种通道类型的数值模拟模型。建立的数值模拟模型分为两部分:一是印刷电路板式换热器模型,二是管内流体流动模型。通过自定义函数将管壁温度场、印刷电路板式换热器传热效能计算公式添加至FLUENT软件中,完成相关参数的设置后实现数值模拟。模拟研究结果为翼型通道形状的温度场数值分布最为均匀,其次是Z型、S型。在进口温度升高的情况下,传热效能均缓慢降低。翼型通道形状的传热效能明显更高,直线型的传热效能表现最差。在操作压力越来越大的情况下,传热效能均迅速下降,翼型通道形状的传热效能明显更高。增大CO_(2)流量后的传热效能高于增大液态镓流量后的传热效能。Heat exchangers are widely used in many fields,and as a new type of heat exchanger,the study of heat transfer performance and temperature field of printed circuit board heat exchangers is particularly important.It aims to gain a deeper understanding of its heat transfer performance,optimize temperature field distribution,and improve heat transfer efficiency through numerical simulation.Build physical models of printed circuit board heat exchangers with four types of straight,S-shaped,Z-shaped,and wing shaped channels,and construct numerical simulation models for four types of channels based on them.The established numerical simulation model is divided into two parts:one is the printed circuit board heat exchanger model,and the other is the fluid flow model inside the tube.Add the temperature field of the tube wall and the heat transfer efficiency calculation formula of the printed circuit plate heat exchanger to FLUENT software through custom functions,and achieve numerical simulation after completing the setting of relevant parameters.The simulation research results show that the temperature field numerical distribution of the airfoil channel shape is the most uniform,followed by Z-shaped and S-shaped.As the inlet temperature increases,the heat transfer efficiency gradually decreases.The heat transfer efficiency of the airfoil channel shape is significantly higher,while the heat transfer efficiency of the straight shape is the worst.Under increasing operating pressure,the heat transfer efficiency rapidly decreases,and the heat transfer efficiency of the airfoil channel shape is significantly higher.The heat transfer efficiency after increasing the CO_(2) flow rate is higher than that after increasing the liquid gallium flow rate.

关 键 词：正弦型板片 翼型通道 印刷电路板式换热器 传热性能 温度场 数值模拟 

分 类 号：TE832[石油与天然气工程—油气储运工程]