Experimental analysis of bubble mode in a plate-type absorber

被引：41

作者：

Lee, KB ^{[1
]}

Chun, BH ^{[1
]}

Lee, JC ^{[1
]}

Lee, CH ^{[1
]}

Kim, SH ^{[1
]}

机构：

[1] Korea Univ, Dept Chem Engn, Seoul 136701, South Korea

来源：

CHEMICAL ENGINEERING SCIENCE | 2002年 / 57卷 / 11期

基金：

欧洲研究理事会;

关键词：

absorption; ammonia-water; bubble mode; heat transfer; mass transfer; transport processes;

D O I：

10.1016/S0009-2509(02)00089-1

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

An experimental analysis of ammonia-water absorption was performed in a plate-type absorber. The flow of water and ammonia gas was performed in the bubble mode. The experiments were made to examine the effects of solution flow rate and gas flow rate on the performance of the absorber. It was found that the increase of solution flow rate rarely affected the mass transfer, but improved the heat transfer. As the gas flow rate increased, slugging occurred in the bubble mode and influenced the thermal boundary layer. Finally, the results were converted into dimensionless numbers to elucidate physical phenomena and plotted as Sherwood number versus Reynolds number for mass transfer performance and Nusselt number versus Reynolds number for heat transfer performance. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1923 / 1929

页数：7