考虑管间液滴形成和下落过程的吸收器模拟及分析

doi:10.7523/j.issn.2095-6134.2006.4.004

中国科学院大学学报 ›› 2006, Vol. 23 ›› Issue (4): 457-464.DOI: 10.7523/j.issn.2095-6134.2006.4.004

考虑管间液滴形成和下落过程的吸收器模拟及分析

王照亮; 唐大伟

1 中国科学院工程热物理研究所，北京 100080；

2 中国石油大学储运与建筑工程学院，东营 257061

收稿日期:1900-01-01 修回日期:1900-01-01 发布日期:2006-07-15

Numerical Simulation of Falling Film and Droplet Absorption Process over and between Horizontal Tubes in Absorber

WANG Zhao-Liang, TANG Da-Wei

1 Institute of Engineering Thermophysics, Chinese Academy of Science, Beijing 100080
2 College of Transportation & Storage and Civil Engineering, Petroleum University of China, Dongying 257061

Received:1900-01-01 Revised:1900-01-01 Published:2006-07-15

摘要/Abstract

摘要： 针对以溴化锂水溶液为工质的水平管吸收器，考虑管底部液滴形成和管间下落过程，建立了描述管间滴状形成和下落吸收过程传热传质耦合数学模型。根据数值计算结果，分析了溶液温度、浓度和吸收速率沿管排不同位置和水平管管间的变化，分析了管间距对吸收器整体传热传质性能的影响。结果表明，滴状吸收过程约占总吸收量的30%。与实验数据的对比说明提出的数学模型是合理的。

关键词: 传热传质, 吸收器, 滴状吸收, LiBr溶液

Abstract: A numerical simulation model of falling film and droplet absorption over and between horizontal tubes in absorber is established with consideration of droplet formation and falling process. The solution temperature and concentration distribution, steam absorption rate along the pipes and between the tube bundles are analyzed. The effect of space between tubes on the coupled heat and mass transfer characteristics is made. The results show that the absorption rate due to droplet formation and falling can be up to 30%. The comparison between the calculated and experimental results shows that the numerical simulation is reasonable.

Key words: heat and mass transfer, absorber, droplet absorption, LiBr aqueous solution

中图分类号:

KT124

王照亮; 唐大伟. 考虑管间液滴形成和下落过程的吸收器模拟及分析[J]. 中国科学院大学学报, 2006, 23(4): 457-464.

WANG Zhao-Liang, TANG Da-Wei. Numerical Simulation of Falling Film and Droplet Absorption Process over and between Horizontal Tubes in Absorber[J]. , 2006, 23(4): 457-464.

考虑管间液滴形成和下落过程的吸收器模拟及分析

Numerical Simulation of Falling Film and Droplet Absorption Process over and between Horizontal Tubes in Absorber

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