Heat transfer characteristics of air cross-flow for in-line arrangement of spirally corrugated tube and smooth tube bundles     

陆国栋周强泰  田茂诚程林 俞小莉 《浙江大学学报(A卷英文版)》2005,6(7):670-675

An experimental study on heat transfer and resistance coefficients of linearly arranged smooth and spirally corrugated tube bundles in cross-flow was performed. The heat transfer and resistance coefficients are presented in this paper with transverse and longitudinal tube-pitch and tube geometries taken into account. The experiment's results can provide technical guidelines for application to horizontal air preheater with arranged in-line spirally corrugated tube bundles, especially to the air preheater for CFBCBs (Circulating Fluidized Bed Combustion Boilers).  相似文献   

STUDY ON RESISTANCE CHARACTERISTICOF GAS-SOLID DENSE EXTRUSION FLOW     

吴慧英  王文琪  周强泰 《东南大学学报》1995,(2)

ＳＴＵＤＹＯＮＲＥＳＩＳＴＡＮＣＥＣＨＡＲＡＣＴＥＲＩＳＴＩＣＯＦＧＡＳ－ＳＯＬＩＤＤＥＮＳＥＥＸＴＲＵＳＩＯＮＦＬＯＷＷｕＨｕｉｙｉｎｇ（吴慧英）ＷａｎｇＷｅｎｑｉ（王文琪）ＺｈｏｕＱｉａｎｇｔａｉ（周强泰）（ＤｅｐａｒｔｍｅｎｔｏｆＰｏｗｅｒＥｎ...  相似文献   

波纹板表面凝结传热的数学模型与计算     

陈亚平  周强泰  施明恒 《东南大学学报》2003,19(4):347-351

基于波纹板表面与液膜之间的表面张力作用能减薄液膜厚度而强化传热的机理，建立了竖直波纹板表面的凝结过程的数学模型．计算了波纹板对应于当量平板的凝结传热增强系数．分析了波纹的主要几何参数如波纹节距、波纹板高度、波纹角、波纹倾斜角、波纹圆角半径等对强化传热的影响效应以指导波纹结构的优化．提出了一种能兼顾强化传热效果和适当的流动截面积的双尺度波纹，其凝结传热系数可比当量平板增强1～2倍．  相似文献