| 用可视化方法实验研究规整填料的局部传质(英文) |
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| 引用本文： | 张燕来,朱慧铭,尹秋响.用可视化方法实验研究规整填料的局部传质(英文)[J].中国化学工程学报,2011,19(5):870-875. |
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| 作者姓名： | 张燕来 朱慧铭 尹秋响 |
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| 作者单位： | 1. Chemical Engineering Research Center, Tianjin University, Tianjin 300072, China;2. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China |
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| 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)%.
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| 关 键 词： | 规整填料 传质系数 可视化方法 数字图像处理技术 实验 流动 化学反应 表面分布 |
| 收稿时间： | 2010-12-16 |
| 修稿时间： | 2010-12-16
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Experimental study on local mass transfer of structured packing with the method of flow visualization |
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| ZHANG Yanlai,ZHU Huiming,YIN Qiuxiang.Experimental study on local mass transfer of structured packing with the method of flow visualization[J].Chinese Journal of Chemical Engineering,2011,19(5):870-875. |
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| Authors: | ZHANG Yanlai ZHU Huiming YIN Qiuxiang |
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| Affiliation: | 1. Chemical Engineering Research Center, Tianjin University, Tianjin 300072, China;2. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China |
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| 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 visualization. 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 increases by (10-20)% and the pressure drop decreases by (15-55)%. |
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| Keywords: | local mass transfer flow visualization structured packing baffle |
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