溶液除湿蒸发冷却系统在不同气候地区的优化选择Optimal Selection of Liquid Desiccant Evaporative Cooling Systems in Different Climatic Zones
李霜玲,彭冬根,周君明
LI Shuang-ling,PENG Dong-gen,ZHOU Jun-ming
摘要(Abstract):
根据气候带或地理条件的不同,选定8个具有典型气候的城市。建立数值模型并运用MATLAB软件平台对6种溶液除湿蒸发冷却系统和5种蒸发冷却系统的性能进行分析。以送风状态参数、制冷量、系统热力系数等作为分析不同循环性能的指标,揭示出各种循环的性能在不同地区的差异。结果表明:循环C6的送风湿度最低,系统热力系数最高,最适用于潮湿的南方地区。循环R4的制冷量较大,较适用于干燥的西北地区。研究结果为不同气候地区选定合适的溶液除湿蒸发冷却空调系统提供借鉴。
According to the differences of the climatic zone or geographical conditions,eight typical climate cities were selected as classic cities in climate.A simulation model was developed in MATLAB software platform to analyze the performances of six kinds of Liquid Desiccant Evaporative Cooling Systems and five kinds of Evaporative Cooling Systems.Supply air conditions,cooling capacity,thermodynamic coefficient etc.were used as measures of analyzing the performances of the different cycles to reveal the performance differences of variety of cycles in different regions.The results show that C6 is the best cycle for the high humidity zone in southern China because of its lowest supply air humidity ratio and highest thermodynamic coefficient,R4 is the good option for the dry area in northwest China because of its high cooling capacity.The study can provide reference for selecting suitable liquid desiccant evaporation cooling systems for different climatic zones.
关键词(KeyWords):
溶液除湿;蒸发冷却;系统热力系数
liquid desiccant;evaporative cooling;thermodynamic coefficient
基金项目(Foundation): 国家自然科学基金项目(51266010);; 南昌大学研究生创新专项资金项目(cx2016099)
作者(Author):
李霜玲,彭冬根,周君明
LI Shuang-ling,PENG Dong-gen,ZHOU Jun-ming
参考文献(References):
- [1]清华大学建筑节能研究中心.中国建筑节能年度发展研究报告2011[M].中国建筑工业出版社,2011:28-29.
- [2]Pandelidis D,Anisimov S,Worek W M.Comp-arison of desiccant air Conditioning systems with different indirect evaporative air coolers[J].Energy Conversion&Management,2016,117:375-392.
- [3]Jain S,Bansal P K.Performance analysis of liquid desiccant dehumidification systems[J].International Journal of Refr-igeration,2007,30(5):861-872.
- [4]Luo Y,Yang H,Lu L.Liquid desiccant dehu-midifier:Development of a new performance predication model based on CFD[J].Inte-rnational Journal of Heat&Mass Transfer,2014,69(2):408-416.
- [5]黄翔.国内外蒸发冷却空调技术研究进展[J].暖通空调,2007,37(2):24-30.
- [6]王伟,黄翔,吴生,等.浅析两级管式间接与直接三级蒸发冷却空调的运行和性能[J].流体机械,2011,39(4):69-73.
- [7]李锋平,孙永霞.蒸发冷却空调系统在新疆某展馆中的应用[J].暖通空调,2015,45(10):76-78.
- [8]江亿,谢晓云,于向阳.间接蒸发冷却技术——中国西北地区可再生干空气资源的高效应用[J].暖通空调,2009,39(9):1-4.
- [9]王玉刚,王怡,黄翔,等.一种新型露点间接蒸发冷却器在我国不同气候区适用性的试验研究[J].流体机械,2015,43(8):68-72.
- [10]宣永梅,肖赋.香港地区溶液除湿与蒸发冷却复合系统的节能分析[J].建筑科学,2009,25(2):84-88.
- [11]王玉刚,刘加平,黄翔,等.溶液除湿蒸发冷却系统在厦门地区的节能潜力[J].流体机械,2012,40(5):67-70.
- [12]蒋毅,张小松,殷勇高.溶液除湿蒸发冷却系统构建及其性能[J].东南大学学报:自然科学版,2006,36(5):780-784.
- [13]殷勇高,张小松,李应林,等.蓄能型太阳能溶液除湿蒸发冷却空调系统的研究[J].东南大学学报:自然科学版,2005,35(1):73-76.
- [14]Fakhrabadi F,Kowsary F.Optimal design of a regenerative heat and mass exchanger for indirect evaporative cooling[J].Applied Thermal Engi-neering,2016,102:1384-1394.
- [15]Liu J,Liu X,Zhang T.Performance comparison of three typical types of internally-cooled liquid desiccant dehumidifiers[J].Building&Environment,2016,103:134-145.
- [16]Bouzenada S,Mcnevin C,Harrison C,et al.Performance of a liquid desiccant air-conditioner driven by evacuated-tube,flat-plate,or hybrid Solar thermal arrays[J].Energy&Buildings,2016,117:53-62.
- [17]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,2014,48(6):821-826
- [18]丁涛,黄之栋,赵伟金,等.太阳能除湿系统中混合盐溶液的除湿/再生效率[J].农业工程学报,2010,26(2):295-299.
- [19]王伟,黄翔,孙铁柱,等.中等湿度地区蒸发冷却空调的冷却效率分析和验证[J].暖通空调,2013,43(1):18-22.
- [20]Liu XH,Qu KY,Jiang Y.Empirical Correlations to predict the performance of the dehumidifier using liquid desiccant in heat and mass transfer[J].Renew Energy,2006,31:1627-39.
- [21]Gommed K,Grossman G,Ziegler F.Experimental investigation of a Li Cl-water open absorption system for cooling and dehu-midification[J].Trans ASME,2004,126:710-715.
- [22]Jain S.Emulating nature:evaporative cooling systems[J].Trans ASHRAE,2008,114(2):1-7.
- [23]中国建筑科学研究院.GB 50736-2012民用建筑供暖通风与空气调节设计规范[S].北京:中国建筑工业出版社,2012.
- [24]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.
- [25]狄育慧,刘加平,黄翔.蒸发冷却空调应用的气候适应性区域划分[J].暖通空调,2010,40(2):108-111.