流体机械2017，Vol.45Issue(11)：72-78,7.DOI:10.3969/j.issn.1005-0329.2017.11.014
印刷电路板式换热器Zigzag通道流动与传热数值模拟
Numerical Simulation on Thermal—hydraulic Performance of a Zigzag Printed Circuit Heat Exchanger
摘要
Abstract
Printed Circuit Heat Exchanger(PCHE) is a competitive candidate in clean energy areas such as nuclear power plant,solar power station and LNG station due to the advantage of high efficiency,compact structure,high temperature and high pressure resistance. In this paper,the thermal—hydraulic performance of a Zigzag PCHE is studied by establishing 3-D heat transfer model,and the model is validated by comparing with experiment results.The influence of channel angle(θ) on velocity and temperature distribution is investigated.(Nu/Nu0)/(f/f0) is proposed to valuate overall performance of PCHE,and channel angle and flow condition are optimized synergistically.It is found that,at θ=15°、25°,the overall performance of PCHE is excellent when Re≥250,and θ=15°is the best angel of bend. The overall performance of PCHE at θ=30°、45° is unsatisfactory, especially at θ=45°.The result can provide significant reference to optimal design of PCHE.关键词
PCHE/Zigzag通道/通道角度/流固耦合传热/综合性能Key words
PCHE/Zigzag channel/channel a ngle/fluid-solid conjugated heat transfer/overall performance分类
机械制造引用本文复制引用
李雪,陈永东,于改革,吴晓红..印刷电路板式换热器Zigzag通道流动与传热数值模拟[J].流体机械,2017,45(11):72-78,7.基金项目
工信部2014海洋工程装备科研项目(工信部联装[2014]505号) （工信部联装[2014]505号）
合肥通用机械研究院青年基金项目(2016010471) （2016010471）
