逆流式露点间接蒸发空冷器热工性能的数值模拟研究
|
摘要
逆流式间接蒸发空调方式(CFIEACP)是基于蒸发冷却机理提出的,在此基础上建立了相应的逆流式露点间接蒸发空冷器(CFDIEAC)的热质交换模型,并通过热力学仿真加以验证。结果表明,该CFDIEAC在理论上是可行的。它适用于空调夏季工况,能够将送风温度处理至接近露点温度。此外,还分析了CFDIEAC的关键结构和运行参数变化,对其热工性能,如送风温度、湿球效率和露点效率的影响。
Counter Flow Indirect Evaporative Air-conditioning Pattern(CFIEACP)has been proposed based on the mechanism of evaporative cooling.On this basis,the heat and mass exchange model of corresponding Counter Flow Dew-point Indirect Evaporative Air Cooler(CFDIEAC)was built.Results showed that the CFDIEAC was feasible in theory.It was suitable for air conditioning in summer conditions,and the air supply temperature can be processed to close to the dew point temperature.In addition,the influence on the thermal performance such as air supply temperature,wet bulb efficiency and dew point efficiency were analyzed due to the changes of the key structure and operating parameters of CFDIEAC.
Counter Flow Indirect Evaporative Air-conditioning Pattern(CFIEACP)has been proposed based on the mechanism of evaporative cooling.On this basis,the heat and mass exchange model of corresponding Counter Flow Dew-point Indirect Evaporative Air Cooler(CFDIEAC)was built.Results showed that the CFDIEAC was feasible in theory.It was suitable for air conditioning in summer conditions,and the air supply temperature can be processed to close to the dew point temperature.In addition,the influence on the thermal performance such as air supply temperature,wet bulb efficiency and dew point efficiency were analyzed due to the changes of the key structure and operating parameters of CFDIEAC.
引文
[1]Cui X,Chua K J,Yang W M.Numerical Simulation of a Novel Energy-efficient Dew-point Evaporative Air Cooler[J].Applied Energy,2014,136:979-988.
[2]高义人,殷结峰.层状通风条件下换气次数对人体热舒适的影响[J].甘肃科学学报,2015,27(1):110-116.
[3]Maisotsenko V,Gillan L.The Maisotsenko Cycle for Air Desiccant Cooling[C]∥The 4th International Symposium on HVAC,Beijing,China,2003.
[4]Caliskan H,Hepbasli A,Maisotsenko V.Thermodynamic Performance Assessment of a Novel Air Cooling Cycle:Maisotsenko Cycle[J].International Journal of Refrigeration,2011,34(4):980-990.
[5]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利用[J].暖通空调,2009,39(9):1-4.
[6]朱颖心.建筑环境学[M].第3版.北京:中国建筑工业出版社,2010.
[7]Maheshwari G P,AlRagom F,Suri R K.Energy-saving Potential of an Indirect Evaporative Cooler[J].Apply Energy,2001,69(1):69-76.
[8]Riangvilaikul B,Kumsr S.Numerical Study of a Novel Dew Point Evaporative Cooling System[J].Energy and Buildings,2010,42(11):2214-2250.
[9]Riangvilaikul B,Kumsr S.An Experimental Study of a Novel Dew Point Evaporative Cooling System[J].Energy and Buildings,2010,42(11):637-644.
[10]Zhao X,Li J M,Riffat S B.Numerical Study of a Novel Counter-flow Heat and Mass Exchanger for Dew Point Evaporative Cooling[J].Applied Thermal Engineering,2008,28(14):1942-1951.
[11]陆亚俊,马最良,邹平华.暖通空调[M].第2版.北京:中国建筑工业出版社,2007.
[12]ElRefaie M F,Kaseb S.Speculation in the Feasibility of Evaporative Cooling[J].Building and Environment,2009,44(4):826-838.
[13]Woods J,Kozubal E.A Desiccant-enhanced Evaporative Air Conditioner Numerical Model and Experiments[J].Energy Coversion and Management,2013,65(11):208-220.
[14]Lee J,Lee D.Experimental Study of a Counter Flow Regenerative Evaporative Cooler with Finned Channel[J].Heat Mass Transfer,2013,65(5):173-179.
[2]高义人,殷结峰.层状通风条件下换气次数对人体热舒适的影响[J].甘肃科学学报,2015,27(1):110-116.
[3]Maisotsenko V,Gillan L.The Maisotsenko Cycle for Air Desiccant Cooling[C]∥The 4th International Symposium on HVAC,Beijing,China,2003.
[4]Caliskan H,Hepbasli A,Maisotsenko V.Thermodynamic Performance Assessment of a Novel Air Cooling Cycle:Maisotsenko Cycle[J].International Journal of Refrigeration,2011,34(4):980-990.
[5]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利用[J].暖通空调,2009,39(9):1-4.
[6]朱颖心.建筑环境学[M].第3版.北京:中国建筑工业出版社,2010.
[7]Maheshwari G P,AlRagom F,Suri R K.Energy-saving Potential of an Indirect Evaporative Cooler[J].Apply Energy,2001,69(1):69-76.
[8]Riangvilaikul B,Kumsr S.Numerical Study of a Novel Dew Point Evaporative Cooling System[J].Energy and Buildings,2010,42(11):2214-2250.
[9]Riangvilaikul B,Kumsr S.An Experimental Study of a Novel Dew Point Evaporative Cooling System[J].Energy and Buildings,2010,42(11):637-644.
[10]Zhao X,Li J M,Riffat S B.Numerical Study of a Novel Counter-flow Heat and Mass Exchanger for Dew Point Evaporative Cooling[J].Applied Thermal Engineering,2008,28(14):1942-1951.
[11]陆亚俊,马最良,邹平华.暖通空调[M].第2版.北京:中国建筑工业出版社,2007.
[12]ElRefaie M F,Kaseb S.Speculation in the Feasibility of Evaporative Cooling[J].Building and Environment,2009,44(4):826-838.
[13]Woods J,Kozubal E.A Desiccant-enhanced Evaporative Air Conditioner Numerical Model and Experiments[J].Energy Coversion and Management,2013,65(11):208-220.
[14]Lee J,Lee D.Experimental Study of a Counter Flow Regenerative Evaporative Cooler with Finned Channel[J].Heat Mass Transfer,2013,65(5):173-179.