机电工程技术2025，Vol.54Issue(4)：85-89,154,6.DOI:10.3969/j.issn.1009-9492.2024.00148
不同排列方式的超临界LNG翼型翅PCHE流动换热性能研究
Investigation on Thermal Hydraulic Performance of Supercritical LNG Airfoil PCHE with Different Arrangement Modes
摘要
Abstract
In recent years,the different arrangement of fins has become the focus of research,so the flow heat transfer performance of supercritical natural gas(LNG)fin printed circuit plate heat exchangers(PCHE)with different arrangement is numerically studied.The results show that when the vertical distance is 2 mm,the Nu/Eu value increases by nearly 4%when the interleaving distance increases from 0 mm to 4 mm,which indicates that the parallel arrangement of the fins of the printed circuit plate heat exchanger has better heat transfer performance than the staggered arrangement,but also accompanied by greater friction resistance.When the interleaving distance is 2 mm,the Nu/Eu value increases by nearly 27%when the vertical distance increases from 2 mm to 5 mm,but when the vertical distance increases from 4 mm to 5 mm,the Nu/Eu value increases by less than 2%,which indicates that the comprehensive performance of the airfoil channel under the interleaving arrangement is better than that of the parallel arrangement,and the smaller the vertical distance,the more obvious the influence is.However,with the increase of vertical distance,the value of Nu/Eu increases less and less,which indicates that the staggered arrangement of airfoil and appropriate sparse arrangement are more conducive to flow and heat transfer,but when the vertical distance is already large,it is of little significance to continue to increase the vertical distance.关键词
印刷电路板式换热器/超临界LNG/流动换热性能Key words
printed circuit heat exchanger/supercritical LNG/thermal-hydraulic performance分类
能源科技引用本文复制引用
刘婉莹,唐凌虹..不同排列方式的超临界LNG翼型翅PCHE流动换热性能研究[J].机电工程技术,2025,54(4):85-89,154,6.基金项目
陕西省自然科学基础研究计划(2023-JC-YB-350) （2023-JC-YB-350）
