热力发电2023，Vol.52Issue(11)：20-28,9.DOI:10.19666/j.rlfd.202302024
类菱形肋片流道印刷电路板换热器热工水力特性研究
Study on the thermal hydraulic characteristics of the printed circuit heat exchanger with rhombic fin channels
摘要
Abstract
To study the thermal hydraulic characteristics of the printed circuit heat exchanger with rhombic fin channels,variations in thermal hydraulic characteristics on the hot and cold sides were analyzed by numerical simulation,with cold side inlet temperature of 313.15～353.15 K and hot side inlet temperature of 553.15～593.15 K.The working medium on the cold side and the hot side were S-CO2 and gaseous CO2 respectively.The comprehensive performance was compared between NACA0030 airfoil fin channels and rhombic fin channels.The results show that when the inlet temperature of S-CO2 increases by 40 K,the total heat transfer decreases by 23.91％,and the pressure drop of hot and cold increases by 29.95％and 11.14％respectively.When the temperature of gaseous CO2 increases by 40 K,the total heat transfer increases by 16.40％,and the pressure drop of hot and cold increases by 9.42％and 7.43％respectively.The inlet temperature of S-CO2 has more obvious influences on the thermal hydraulic characteristics.The printed circuit heat exchanger with rhombic fin channels has less flow resistance and better comprehensive performance.The results have a certain reference significance for the design of printed circuit heat exchangers with discontinuous channels.关键词
印刷电路板换热器/S-CO2/换热性能/类菱形肋片流道Key words
printed circuit heat exchangers/S-CO2/heat transfer characteristics/rhombic fin channels引用本文复制引用
吴家荣,李红智,杨玉,张一帆,杨乐..类菱形肋片流道印刷电路板换热器热工水力特性研究[J].热力发电,2023,52(11):20-28,9.基金项目
国家自然科学基金项目(U20B2035) （U20B2035）
国家重点研发计划项目(2018YFB1501004) （2018YFB1501004）
陕西省创新能力支撑计划(2023-CX-TD-18)National Natural Science Foundation of China(U20B2035) （2023-CX-TD-18）
National Key Research and Development Program of China(2018YFB1501004) （2018YFB1501004）
Innovation Capability Support Program of Shaanxi(2023-CX-TD-18) （2023-CX-TD-18）
