基于理想除湿效率的液体除湿空调系统性能影响因素分析

摘要/Abstract

摘要：

摘要：
以质量守恒、能量守恒定律为基础，提出液体除湿空调系统理想除湿效率的概念.建立数学模型并结合已有实验研究，对空气和盐溶液的质量流量、入口温度及入口含湿量、入口浓度等因素与系统溶液除湿性能之间的关系进行了分析.结果表明：虽然单一增大溶液质量流量或减小空气质量流量都可以增大系统液气比，但这两种情况中系统除湿效率的增长规律是不同的；在不同液气比下，理想除湿效率均随空气含湿量的增大呈现出先增大后减小的规律；液气比越大，理想除湿效率变化转折点所对应的空气含湿量越大；除湿效率将随溶液入口浓度增大而增大，而空气入口温度及溶液入口温度对除湿效率无显著影响.文中结果校正或拓展了已有的研究结果，并更加精细、合理.

关键词: 液体除湿, 理想除湿效率, 影响因素

Abstract:

A new concept called “ideal dehumidification efficiency” was proposed to evaluate the performance of the liquid dehumidification system based on the laws of conversation of mass and conversation of energy. The effects of mass flow rate, inlet temperature and inlet quality concentration/humidity of both humid air and lithium chloride solution were analyzed in detail. It was found that although the increase in solution mass flow rate or decrease in air mass flow rate can increase the dehumidification efficiency, the regularities were different. The relationships between dehumidification efficiency and air inlet humidity were also studied at five different liquid-air ratios. Compared to the existing research, the results obtained in this paper were much more reasonable and precise.

Key words: liquid desiccant, ideal dehumidification efficiency, influencing factors

中图分类号:

TU 834.9

杨自力，连之伟. 基于理想除湿效率的液体除湿空调系统性能影响因素分析[J]. 上海交通大学学报（自然版）, 2014, 48(06): 821-826.

YANG Zili,LIAN Zhiwei. Analysis of Influencing Factors on Performance of the L.D.A.C. System Based on the Concept of Ideal Dehumidification Efficiency[J]. Journal of Shanghai Jiaotong University, 2014, 48(06): 821-826.

参考文献

［1］江亿, 李震, 陈晓阳, 等. 溶液式空调及其应用［J］. 暖通空调, 2004, 34(11): 8897.

JIANG Yi, LI Zhen, CHEN Xiaoyang, et al. Liquid desiccant airconditioning system and its applications［J］. Journal of HV&AC, 2004, 34(11):8897.

［2］Mei L, Dai Y J. A technical review on use of liquiddesiccant dehumidification for airconditioning application［J］. Renewable & Sustainable Energy Reviews, 2008, 12(3): 662689.

［3］berg 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: 289297.

［4］Ritunesh Kumar, Dhar P L, Sanjeev Jain. Development of new wire mesh packings for improving the performance of zero carryover spray tower ［J］. Energy, 2011, 36(2): 13621374.

［5］WANG Li, LIAN Zhiwei. Improvement of conventional liquid desiccant dehumidification technology ［J］. Journal of Southeast University, 2010, 26(2): 212216.

［6］边争, 杨自力, 连之伟. 超声雾化液体除湿空调系统性能实验研究［J］. 上海交通大学学报, 2012, 46(10): 16041608.

BIAN Zheng, YANG Zili, LIAN Zhiwei, Experimental study of ultrasound atomization dehumidifying system with liquid desiccant ［J］. Journal of Shanghai Jiaotong University, 2012, 46(10): 16041608.

［7］Lazzarin R M, Gasparella A, Longo G A. Chemical dehumidification by liquid desiccants: Theory and experiment［J］. International Journal of Refrigeration, 1999, 22(4): 334347.

［8］AbdulWahab S A, Zurigat Y H, AbuArabi M K. Predictions of moisture removal rate and dehumidification effectiveness for structured liquid desiccant air dehumidifier［J］. Energy, 2004, 29(1): 1934.

［9］Kessling W, Laevemann E, Kapfhammer C. Energy storage for desiccant cooling systems component development［J］. Solar Energy, 1998, 64(4): 209221.

［10］Gao W Z, Liu J H, Cheng Y P, et al. Experimental investigation on the heat and mass transfer between air and liquid desiccant in a crossflow dehumidifier［J］. Renewable Energy, 2012, 37(1): 117123.

［11］Liu X H, Zhang Y, Qu K Y, et al. Experimental study on mass transfer performances of cross flow dehumidifier using liquid desiccant［J］. Energy Conversion and Management, 2006, 47(15): 26822692.

［12］李惟毅, 董岩, 方承超. 液体除湿系统的实验研究［J］. 太阳能学报, 2000, 21(4): 391395.

LI Weiyi, DONG Yan, FANG Chengchao. The experimental research of liquid dehumidifying system［J］. Acta Energiae Solaris Sinica, 2000, 21(4): 391395.

［13］Longo G A, Gasparella A. Experimental and theoretical analysis of heat and mass transfer in a packed column dehumidifier/regenerator with liquid desiccant［J］. International Journal of Heat and Mass Transfer, 2005,48(25): 52405254.

［14］王俐, 连之伟, 刘蔚巍. 结合超声雾化技术的液体除湿系统分析［J］. 中南大学学报, 2011, 42(1): 240246.

WANG Li, LIAN Zhiwei, LIU Weiwei. Analysis of liquiddesiccant dehumidifying system combined with ultrasound atomization technology［J］. Journal of Central South University, 2000, 21(4): 391395.

［15］丁照球. 溶液除湿空调系统研究［D］. 武汉: 武汉科技大学城市建设学院, 2007.

［16］Conde Manuel R. 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(4): 367382.

[1]	李兆亭, 周祥, 张洪波, 汤国建. 基于伪谱法的再入可达域影响因素分析[J]. 上海交通大学学报, 2022, 56(11): 1470-1478.
[2]	吴琼雷，张朋柱. 互联网+背景下基于UTAUT的商学院 E-learning用户接受模型[J]. 上海交通大学学报（自然版）, 2018, 52(2): 233-241.
[3]	钟国强1,2，王浩1，张国华1，覃卫民1，王成汤1,2，熊俊峰1,2. 基于RS-MIV-ELM模型的基坑水平位移影响因素分析和预测[J]. 上海交通大学学报（自然版）, 2018, 52(11): 1508-1515.
[4]	苗治平1，张峰2. 新型工业化背景下的工业水资源利用效率指数测量及其影响因素分析[J]. 上海交通大学学报（自然版）, 2017, 51(6): 761-768.
[5]	李曦，张凯晟，杨自力，连之伟. 超声雾化液体除湿系统对室内空气品质的影响[J]. 上海交通大学学报（自然版）, 2017, 51(3): 257-.
[6]	朱小慧1,陈鹏1，方俊华2. 燃料特性和工况对直喷汽油机微粒排放的影响[J]. 上海交通大学学报（自然版）, 2017, 51(1): 69-.
[7]	夏更寿, 李国志. 农户废旧农膜回收的影响因素研究——基于江西省596个农户的调查[J]. 上海交通大学学报(农业科学版), 2016, 34(1): 31-35.
[8]	李舜水, 李三喜. 西湖油气田低渗储层压裂效果主要影响因素分析[J]. 海洋工程装备与技术, 2015, 2(2): 80-83.
[9]	姚海元, 李清平, 程兵, 陈绍凯, 刘永飞. 天然气凝析液管道射流清管器清管效果影响因素分析[J]. 海洋工程装备与技术, 2015, 2(1): 32-35.
[10]	边争, 杨自力, 连之伟. 超声雾化液体除湿空调系统性能实验研究[J]. 上海交通大学学报（自然版）, 2012, 46(10): 1604-1608.