H型翅片椭圆管束传热与阻力特性的实验研究  

Experimental Tests on Heat Transfer and Resistance Characteristics of H-type Finned Elliptical Tubes

作　　者：杨子江[1] 袁益超[1] 孔德满 李猛 YANG Zi-jiang;YUAN Yi-chao;KONG De-man;LI Meng(Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering,University of Shanghai for Science and Technology,Shanghai,China,200093)

机构地区：[1]上海理工大学上海市动力工程多相流动与传热重点实验室,上海200093

出　　处：《热能动力工程》2020年第3期145-150,共6页Journal of Engineering for Thermal Energy and Power

摘　　要：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s1与纵向管间距s2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s1的增大,管外侧传热性能变差、阻力减小;随着s2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s2对传热与阻力性能的影响比横向管间距s1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(s1) and longitudinal tube pitch(s2) 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 s1 increases.The heat transfer performance is reduced significantly,and the flow resistance is decreased significantly,as s2 increases.Furthermore,the effect of longitudinal tube spacing s2 on heat transfer and resistance performance is more evident,compared with the transverse tube spacing s1.

关 键 词：H型翅片 椭圆管 传热特性 阻力特性 实验 

分 类 号：TK124[动力工程及工程热物理—工程热物理]