对H型翅片椭圆管束的管外侧传热与阻力特性进行了模化实验研究，得到了H型翅片椭圆管束的管外侧传热与阻力特性变化规律，分析了横向管间距s1与纵向管间距s2对H型翅片椭圆管束传热与阻力特性的影响。研究表明：在研究范围内，随着s1的增大，管外侧传热性能变差、阻力减小；随着s2的增大，管外侧传热性能明显变差，阻力明显减小；且纵向管间距s2对传热与阻力性能的影响比横向管间距s1更明显。

Experimental tests were performed to study the heat transfer and resistance characteristics at the outer surface of Htype finned elliptical tube banks,and the variation laws and correlations of external heat transfer and resistance were obtained.The effects of transverse tube pitch (s1) and longitudinal tube pitch(s2) on the heat transfer and resistance performance of Htype finned elliptical tube banks were investigated.It is found that the heat transfer performance is reduced,and the flow resistance is decreased,as s1 increases.The heat transfer performance is reduced significantly,and the flow resistance is decreased significantly,as s2 increases.Furthermore,the effect of longitudinal tube spacing s2 on heat transfer and resistance performance is more evident,compared with the transverse tube spacing s1.

TK124

上海市部分地方院校能力建设专项计划（16060502600）