新型微通道换热器翅片的性能研究-狄义波.pdfVIP

新型微通道换热器翅片的性能研究 [狄义波] [英格索兰亚太研发中心，215000] [ 摘[ 摘 要要 ] ] 本文基于 ANSYS仿真软件，建立了常规微通道换热器空气侧翅片的对流换热模型，并用结合 [ [ 摘摘 要要 ] ] 实验加以检验。该模型的给出的 j和 f因子与实验数据吻合良好，尤其在翅片典型的工作区间 (Re数 500至 1000)。应用该模型的建模方式，分析了某新型翅片的压降与换热性能。该翅片 与常规开窗翅片相比具有结构简单，易于制造的优势，同时仿真结果表明：这种新型翅片有着 极低的摩擦因子f 和接近常规翅片的换热因子j，以及更好的翅片效率(f/j)。 [ 关键词[ 关键词 ]] 微通道换热器，开窗翅片， CFD 仿真, 换热因子，摩擦因子 [ [ 关键词关键词 ]] Performance study on a new fin of Micro-channel heat exchanger [Di Yi Bo] [IRETC-AP, 215000] [ Abstract[ Abstract ] ] In this paper, a CFD model is built to predict the air-side heat transfer and pressure [ [ AbstractAbstract ] ] drop of Micro-channel heat exchanger and test is conducted to validate the approach. CFD results give a good agreement of j and f factor, especially in typical Re number range (500 to 1000) where MCHE normally works. The approach is used to analyze the performance of pressure drop and heat transfer of a new fin. This fin has a large advantage in manufacturing because of simpler geometry. And CFD results further shows that this fin has an extremely low f factor and almost same level j factor, thus better fin efficiency (f/j). [ Keyword ] Micro-channel heat exchanger, louver f[ Keyword ] in, CFD simulation, j factor, f factor [ Keyword ] [ Keyword ] 1 前言 早在20世纪80年代，微通道换热器开始应用到电子器件的冷却问题上，表现出体积 小，结构紧凑，传热系数高等优点；为解决汽车空调体积大、易损坏等缺点，美国 Modine 公司借鉴电子产品领域的微通道换热器设计了平行流换热器。后来日本昭和铝