铝翅片油冷却器换热性能的数值分析及实验研究  

Numerical Analysis and Experimental Study on Heat Transfer Performance of Aluminum Fin Oil Cooler

作　　者：范继珩 冯毅[1] 陈强 Fan Jiheng;Feng Yi;Chen Qiang(Institute of Chemical Machinery and Safety Engineering,School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou,510640)

机构地区：[1]华南理工大学机械与汽车工程学院化工机械与安全工程研究所,广州510640

出　　处：《制冷与空调（四川）》2018年第5期540-546,566,共8页Refrigeration and Air Conditioning

摘　　要：利用fluent三维模拟软件对不同管间距下的铝翅片油冷却器壳侧流场进行数值模拟。选择?/(35)P作为综合评价因子,分析不同的管间距对壳程流场传热及阻力性能的影响,研究结果表明:铝翅片油冷却器的传热及阻力性能与壳侧Re有关,壳侧传热系数及壳侧压降均随壳侧Re的增大而增大,但壳侧传热系数随Re的增大增长率逐渐下降,而壳侧压降随Re的增长呈现二次曲线状;增大管间距可提高铝翅片油冷却器的换热性能,管间距为21mm时的传热及阻力性能最佳;数值模拟及实验结果误差较小,有效验证了数值模拟的准确性。The flow field of aluminum fin oil cooler under different pipe pitch was simulated by using fluent 3D simulationsoftware. The influence of different tube pitch on heat transfer and resistance performance of shell flow field was analyzed by selecting α/△P as the comprehensive evaluation factor. Results showed that, heat transfer and resistance characteristics of aluminum fin oil cooler were effected by the Re of shell-side. The heat transfer coefficient and pressure grew gradually with Re increased.However, the growth rate of heat transfer coefficient reduced gradually with Re increased. With the increase of Re, the pressure wasrelated to Re for the quadratic curve. Increasing tube pitch could improve heat transfer performance of aluminum fin oil cooler, theheat transfer and resistance performance of the pipe pitch of 21mm was the best. There were small deviations between thenumerical simulation and experimental results, the accuracy of numerical simulation was verified effectively.

关 键 词：管间距 铝翅片油冷却器 换热性能 模拟与实验 

分 类 号：TK172[动力工程及工程热物理—热能工程] TE965[石油与天然气工程—石油机械设备]