H型翅片椭圆管束传热及阻力特性的试验研究  

Experimental Research on Heat Transfer and Resistance Characteristics of H-Type Finned Elliptical Tubes

作　　者：李飞[1] 史月涛[1] 孙奉仲[1] 李志敏[1] 

机构地区：[1]山东大学能源与动力工程学院,山东省济南市250061

出　　处：《中国电机工程学报》2014年第14期2261-2266,共6页Proceedings of the CSEE

基　　金：国家重点基础研究计划(973计划)(2011CB 710702);山东省科技发展计划(2012GGE27012)~~

摘　　要：对椭圆H型翅片管的传热及阻力特性进行含尘烟气条件下的热态试验研究,得到工业应用条件下的椭圆H型翅片管换热管传热及流动特性变化规律,给出了管外换热试验关联式及阻力试验关联式,并通过洁净管及稳定积灰工况的比较,得出试验元件的积灰变化规律,同时针对不同的翅片管布置方式进行分析,认为顺列布置条件下,积灰对于其传热特性及阻力特性的影响均小于错列布置,最高可达50%。In this paPer, heat transfer and resistance characteristics of H-type finned elliptical tube were studied and external heat transfer and resistance correlations with certain industrial application value were obtained by thermal state experiment under flue dust condition. Fouling variation of test element was summed through comparision between analysis with clean tube and stable fouling tube. By analyzing of different arrangements of finned tubes, it turns out that under line layout condition, fouling has less influence （up to 50%） on heat transfer and resistance chatacteristics than that under staggered layout condition.

关 键 词：椭圆H型翅片管 传热特性 阻力特性 热态试 验 积灰 

分 类 号：TK124[动力工程及工程热物理—工程热物理]