| 混合除湿盐溶液液滴闪蒸机理 |
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| 引用本文： | 高文忠,时亚茹,韩笑生,章学来,程永攀. 混合除湿盐溶液液滴闪蒸机理[J]. 化工学报, 2012, 63(11): 3453-3459. DOI: 10.3969/j.issn.0438-1157.2012.11.011 |
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| 作者姓名： | 高文忠 时亚茹 韩笑生 章学来 程永攀 |
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| 作者单位： | 1. 上海海事大学商船学院, 上海 201306;2. 新加坡国立大学化学和生物分子工程系, 新加坡 117576 |
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| 摘 要： | 除湿溶液再生是维持除湿过程持续进行的必备条件,其效率直接影响整个系统的性能。借鉴水滴闪蒸理论,分析了液滴闪蒸过程大小、质量以及温度变化,初步实验测试了影响闪蒸效率的因素,结果表明:压力是影响闪蒸效率的核心因素,及时去除蒸发水分才能保证闪蒸的持续进行;溶液浓度配比与闪蒸效率关联性较强;液滴初始温度对闪蒸效率影响相对较小;温度的实验测试值总体大于理论计算值,使用水滴闪蒸理论模型需进行物性修正。
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| 关 键 词： | 闪蒸 混合溶液 效率 浓度配比 |
| 收稿时间： | 2012-02-28 |
| 修稿时间： | 2012-07-27 |
Droplet flash evaporation of mixed dehumidification solutions |
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| GAO Wenzhong , SHI Yaru , HAN Xiaosheng , ZHANG Xuelai , CHENG Yongpan. Droplet flash evaporation of mixed dehumidification solutions[J]. Journal of Chemical Industry and Engineering(China), 2012, 63(11): 3453-3459. DOI: 10.3969/j.issn.0438-1157.2012.11.011 |
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| Authors: | GAO Wenzhong SHI Yaru HAN Xiaosheng ZHANG Xuelai CHENG Yongpan |
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| Affiliation: | 1. Merchant Marine College, Shanghai Maritime University, Shanghai 201306, China;2. Department of Chemical and Biomolecular Engineering, National University of Singapore, 117576, Singapore |
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| Abstract: | Regeneration of dehumidification solution is necessary to maintain the continuous dehumidifying process,whose efficiency directly affects the performance of whole system.The size,mass,and temperature of droplets during the flash evaporation were analyzed based on droplet flash theory,and the factors affecting the efficiency of flash evaporation were tested through preliminary experiments.The results show that pressure is the key factor affecting the efficiency of the flash evaporation.Flash evaporation may proceed only if the steam is removed timely.The mixed ratio of different solutions is relevant to the efficiency of flash evaporation.The initial temperature of droplet has little effect on the efficiency.The experimental values of temperature are higher than the theoretical values,so the physical properties need to be modified if the flash evaporation theory of droplet is adopted according to droplets flash evaporation of mixed dehumidification solutions. |
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| Keywords: | flash evaporation mixed dehumidification solutions efficiency concentration ratio |
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