Experimental Study on Local Mass Transfer of Structured Packing with the Method of Flow Visualization

›› 2011, Vol. 19 ›› Issue (5): 870-875.

Experimental Study on Local Mass Transfer of Structured Packing with the Method of Flow Visualization

张燕来¹, 朱慧铭¹, 尹秋响²

1. Chemical Engineering Research Center, Tianjin University, Tianjin 300072, China;
2. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

收稿日期:2010-12-16 修回日期:2011-07-05 出版日期:2011-10-28 发布日期:2011-10-28
通讯作者: ZHU Huiming,E-mail:hzhu@tju.edu.cn

Experimental Study on Local Mass Transfer of Structured Packing with the Method of Flow Visualization

ZHANG Yanlai¹, ZHU Huiming¹, YIN Qiuxiang²

1. Chemical Engineering Research Center, Tianjin University, Tianjin 300072, China;
2. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

Received:2010-12-16 Revised:2011-07-05 Online:2011-10-28 Published:2011-10-28

摘要/Abstract

摘要： A chromochemical reactive mass transfer technique has been employed to study local mass transfer characteristics of structured packing. This technology adopted by experiment is an Ammonia Adsorption Method (AAM) that yields the surface distribution of transferred mass by analyzing the color distribution on a filter paper with the results of the color chemical reaction. A digital image processing technology is applied for data visualiza-tion. The three-dimensional plot of the local mass transfer coefficients shows that there exist three peak values on different positions of a unit cell of structured packing. In order to improve mass transfer efficiency of the structured packing, one piece of baffle is added between packing sheets. As a result, the average mass transfer coefficient in-creases by (10-20)% and the pressure drop decreases by (15-55)%.

关键词: local mass transfer, flow visualization, structured packing, baffle

Abstract: A chromochemical reactive mass transfer technique has been employed to study local mass transfer characteristics of structured packing. This technology adopted by experiment is an Ammonia Adsorption Method (AAM) that yields the surface distribution of transferred mass by analyzing the color distribution on a filter paper with the results of the color chemical reaction. A digital image processing technology is applied for data visualiza-tion. The three-dimensional plot of the local mass transfer coefficients shows that there exist three peak values on different positions of a unit cell of structured packing. In order to improve mass transfer efficiency of the structured packing, one piece of baffle is added between packing sheets. As a result, the average mass transfer coefficient in-creases by (10-20)% and the pressure drop decreases by (15-55)%.

Key words: local mass transfer, flow visualization, structured packing, baffle

张燕来, 朱慧铭, 尹秋响. Experimental Study on Local Mass Transfer of Structured Packing with the Method of Flow Visualization[J]. , 2011, 19(5): 870-875.

ZHANG Yanlai, ZHU Huiming, YIN Qiuxiang. Experimental Study on Local Mass Transfer of Structured Packing with the Method of Flow Visualization[J]. , 2011, 19(5): 870-875.

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Experimental Study on Local Mass Transfer of Structured Packing with the Method of Flow Visualization

Experimental Study on Local Mass Transfer of Structured Packing with the Method of Flow Visualization

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