Study on the Falling Film Absorption Outside Smooth and Enhanced Tubes

被引:0
|
作者
Mei-xia Wang
Cun-fang Liu
Xin-guang Wang
Bin Zhao
机构
[1] Shandong University,School of Energy Sources and Power Engineering
[2] Yantai Longyuan Electric Technology Co.,undefined
[3] Ltd,undefined
[4] Jinan Construction Supervision Limited Corporation,undefined
来源
Journal of Hydrodynamics | 2006年 / 18卷
关键词
heat and mass transfer; mathematical model; numerical calculation; enhanced tube;
D O I
暂无
中图分类号
学科分类号
摘要
In this paper, mathematical models of smooth and enhanced tubes were established. A new mathematical model in evaluating single-tube falling film absorption effect outside enhanced tubes is proposed. The liquid film outside enhanced tubes is assumed to consist of two layers, i.e. internal and external layers. The analytical solutions to the distribution of the velocity, temperature and concentration in the internal layer are obtained by means of theoretical analysis, while the solutions in the external layer are calculated by using numerical method. The governing equations of the two layers are coupled using a second-order coupling method. The effects of the height and the angle of the ribs on the performances of the heat and mass transfer of the liquid film are discussed. It is shown that the agreement is good between the calculation results and the experimental data.
引用
收藏
页码:405 / 410
页数:5
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