变截面管混合管束模型及关联式  

A model and connected equations of the mixed bundle of the varing-area tubes

作　　者：吴家声[1] 王庆均[1] 付玉华 蔡洪涛[1] 江楠[2] 任佩玲 薛建设 

机构地区：[1]武汉化工学院机械工程系,武汉430073 [2]华南理工大学化机系,广州560641 [3]中国五环化学工程公司,武汉430073

出　　处：《武汉化工学院学报》1999年第3期51-55,共5页Journal of Wuhan Institute of Chemical Technology

基　　金：湖北省1997年重点科技研究项目!972P0303

摘　　要：根据流体力学和传热学基本理论，建立了无折流板（杆）变截面管混合管束纵向流管壳式换热器管程理论计算较通用模型.通过实验测得的数据，利用回归法得出了管程传热膜系数和阻力系数的关联式，最后得到变截面管管程传热和压降计算式.In response to fundamental theory of fluid mechanics and heat transfer,general model for the theoretical calculation of the tube-side was developed for the longitudinal flow shellandtube excanger with mixed bundle of the Varing-area tubes and plain tubes and without the need for baffles (RODbaffle). By means of the measured data of experiment and utilizing the leastsquare method,connected equations of heat transfer coefficient and resistance coefficient were arrived. At last calculation equations of the deformed tube heat rtansfer and pressure drop in the tube-side were acquired.

关 键 词：混合管束 变截面管 模型 关联式 换热器 

分 类 号：TQ051.502[化学工程]