混合除湿盐溶液液滴闪蒸机理

doi:10.3969/j.issn.0438-1157.2012.11.011

化工学报 ›› 2012, Vol. 63 ›› Issue (11): 3453-3459.DOI: 10.3969/j.issn.0438-1157.2012.11.011

混合除湿盐溶液液滴闪蒸机理

高文忠¹, 时亚茹¹, 韩笑生¹, 章学来¹, 程永攀²

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

收稿日期:2012-02-28 修回日期:2012-07-27 出版日期:2012-11-05 发布日期:2012-11-05
通讯作者: 章学来
作者简介:高文忠(1978-),男,博士,副教授。
基金资助:
国家自然科学基金项目(51106094)。

Droplet flash evaporation of mixed dehumidification solutions

GAO Wenzhong¹, SHI Yaru¹, HAN Xiaosheng¹, ZHANG Xuelai¹, CHENG Yongpan²

1. Merchant Marine College, Shanghai Maritime University, Shanghai 201306, China;
2. Department of Chemical and Biomolecular Engineering, National University of Singapore, 117576, Singapore

Received:2012-02-28 Revised:2012-07-27 Online:2012-11-05 Published:2012-11-05
Supported by:
supported by the National Natural Science Foundation of China(51106094).

摘要/Abstract

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。

关键词: 闪蒸, 混合溶液, 效率, 浓度配比

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.

Key words: flash evaporation, mixed dehumidification solutions, efficiency, concentration ratio

中图分类号:

TQ028.8

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.

GAO Wenzhong, SHI Yaru, HAN Xiaosheng, ZHANG Xuelai, CHENG Yongpan. Droplet flash evaporation of mixed dehumidification solutions[J]. CIESC Journal, 2012, 63(11): 3453-3459.

参考文献 16

[1]	Jiang Yi(江亿),Li Zhen(李震),Chen Xiaoyang(陈晓阳),Liu Xiaohua(刘晓华).Liquid desiccant air-conditioning system and its applications[J].Journal of HV&AC(暖通空调),2004,34(11):88-97
[2]	Longo G A,Gasparella A.Experimental analysis on chemical dehumidification of air by liquid desiccant and desiccant regeneration in a packed tower[J].Journal of Solar Energy Engineering,2004,126(1):587-591
[3]	Manuel R Conde.Properties of aqueous solutions of lithium and calcium chlorides:formulations for use in air conditioning equipment design[J].International Journal of Thermal Sciences,2004,43:367-382
[4]	Lowenstein A,Slayzak S,Kozubal E.A zero carryover liquid-desiccant air conditioner for solar applications//ASME International Solar Energy Conference.Denver,2006
[5]	Kessling W,Laevemann E,Peltzer M.Energy storage in open cycle liquid desiccant cooling systems[J].Int. J. Refrig.,1998,21(2):150-156
[6]	Sanjeev Jaina,Bansal P K.Performance analysis of liquid desiccant dehumidification systems[J].International Journal of Refrigeration,2007,30:861-872
[7]	Factor H M,Grossman G.A packed bed dehumidifier/regenerator for solar air conditioning with liquid desiccants[J].Solar Energy,1980:541-550
[8]	Oberg V,Goswami D Y.Experimental study of the heat and mass transfer in a packed bed liquid desiccant air dehumidifier[J].Journal of Solar Energy Engineering,1998,120(4):289-297
[9]	Yin Yonggao,Zhang Xiaosong.Comparative study on internally heated and adiabatic regenerators in liquid desiccant air conditioning system[J].Building and Environment,2010,45:1799-1807
[10]	Gandhidsan P.Quick performance predictions of liquid desiccant regeneration in a packed bed[J].Solar Energy,2005,79(1):47-55
[11]	Liu Xiaohua(刘晓华).Combined heat and mass transfer characteristic in air handling process using liquid desiccant.Beijing:Tsinghua University,2007
[12]	Saury D,Harmand S,Siroux M.Flash evaporation from a water pool:influence of the liquid height and of the depressurization rate[J].International Journal of Thermal Sciences,2005,44:953-965
[13]	Adel K El-Fiqi,Ali N H,El-Dessouky H T,Fath H S,El-Hefnic M A.Flash evaporation in a superheated water liquid jet[J].Desalination,2007,206:311-321
[14]	Li Luning(李鲁宁),Hu Shenhua(胡申华),Guo Yingli(郭迎利).Experimental study on heat transfer characteristics of flash evaporation of water film in open system[J].Journal of Xi’an Jiaotong University(西安交通大学学报),2007,41(1):1-4
[15]	Kim B S,Shin H T,Lee Y P,Jurng J.Study on ice slurry production by water spray[J].International Journal of Refrigeration,2001,24:176-184
[16]	Zhang Shaozhi(张绍志),Wang Jianfeng(王剑锋),Chen Guangming(陈光明).Theoretical analysis of the flash vaporizer in a refrigeration system using water as refrigerant[J].Cryogenics(低温工程),2000,46(3):12-18

混合除湿盐溶液液滴闪蒸机理

Droplet flash evaporation of mixed dehumidification solutions

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献 16

相关文章 15

编辑推荐

Metrics

本文评价

[1]	程小松, 殷勇高, 车春文. 不同工质在溶液除湿真空再生系统中的性能对比[J]. 化工学报, 2023, 74(8): 3494-3501.
[2]	杨越, 张丹, 郑巨淦, 涂茂萍, 杨庆忠. NaCl水溶液喷射闪蒸-掺混蒸发的实验研究[J]. 化工学报, 2023, 74(8): 3279-3291.
[3]	邢雷, 苗春雨, 蒋明虎, 赵立新, 李新亚. 井下微型气液旋流分离器优化设计与性能分析[J]. 化工学报, 2023, 74(8): 3394-3406.
[4]	高金明, 郭玉娇, 鄂承林, 卢春喜. 一种封闭罩内顺流多旋臂气液分离器的分离特性研究[J]. 化工学报, 2023, 74(7): 2957-2966.
[5]	周继鹏, 何文军, 李涛. 异形催化剂上乙烯催化氧化失活动力学反应工程计算[J]. 化工学报, 2023, 74(6): 2416-2426.
[6]	葛泽峰, 吴雨青, 曾名迅, 查振婷, 马宇娜, 侯增辉, 张会岩. 灰化学成分对生物质气化特性的影响规律[J]. 化工学报, 2023, 74(5): 2136-2146.
[7]	李亚飞, 邓建强, 何阳. 跨临界CO₂快速膨胀过程中非平衡冷凝和闪蒸机理的数值研究[J]. 化工学报, 2022, 73(7): 2912-2923.
[8]	刘星伟, 贾胜坤, 罗祎青, 袁希钢. 基于信赖域算法的精馏塔优化[J]. 化工学报, 2022, 73(5): 2031-2038.
[9]	卢沛, 罗向龙, 陈健勇, 杨智, 梁颖宗, 陈颖. 板式换热器及其热力系统的运行特性和高级分析[J]. 化工学报, 2021, 72(S1): 512-519.
[10]	侯勇俊, 祝敬涛, 李华川, 吴先进, 蒋锐. 均衡运动旋转振动筛DEM数值模拟[J]. 化工学报, 2021, 72(5): 2706-2717.
[11]	朱明军, 胡大鹏. 三相卧螺离心机设计分析及结构参数对分离效果的影响[J]. 化工学报, 2021, 72(4): 2113-2122.
[12]	于程远, 吴金奎, 周利, 吉旭, 戴一阳, 党亚固. 基于深度学习预测有机光伏电池能量转换效率[J]. 化工学报, 2021, 72(3): 1487-1495.
[13]	郭达, 祁贵生, 刘有智, 焦纬洲, 闫文超, 高雨松. 错流旋转填料床的质、热同传性能及传热机理研究[J]. 化工学报, 2021, 72(11): 5543-5551.
[14]	蔡本安, 郭民承, 车勋建, 蔡伟华. 多级喷雾闪蒸海水淡化系统性能分析及响应面优化研究[J]. 化工学报, 2021, 72(11): 5573-5581.
[15]	许晓佳, 吴永真, 朱为宏. CsPbX₃钙钛矿材料与光伏器件稳定性强化研究进展[J]. 化工学报, 2020, 71(9): 3933-3949.