空气横掠顺列螺旋槽管和光管管束的传热特性  

Heat Transfer Characteristics of Air Flowing Across Bundles of Rifled and Bare Tubes in Aligned Arrangement

作　　者：陆国栋[1] 周强泰[2] 田茂诚[3] 程林[3] 俞小莉[1] 

机构地区：[1]浙江大学机械与能源工程学院,杭州310027 [2]东南大学动力工程系,南京210096 [3]山东大学能源与动力工程学院,济南250061

出　　处：《动力工程》2005年第1期44-49,共6页Power Engineering

摘　　要：以横向管距、纵向管距以及管子的几何参数为研究对象,对顺列光管和螺旋槽管管束进行了横向冲刷换热及阻力试验研究,得出了换热和阻力关联式,为顺列布置的卧式螺旋槽管空气预热器的应用,尤其是为循环流化床锅炉的空气预热器提供了设计依据。An experimental study on heat transfer and resistance coefficients has been performed for the case of air flowing across bundles of bare and rifled tubes in aligned arrangement with varying transverse and longitudinal tube-pitches and differing tube geometry. Correlative equations for heat transfer and resistance are obtained, applicable for the layout of horizontal air preheaters with bundles of rifled tubes in aligned arrangement, especially in the case of circulating fluidized bed boilers.

关 键 词：动力机械工程 循环流化床 空气预热器 螺旋槽管 顺列管束 横掠 

分 类 号：TK223[动力工程及工程热物理—动力机械及工程]