李晗;吕建;李勇刚;郭春梅;孟丹东;

• 1:天津城建大学能源与安全工程学院
• 2:天津市建筑设计院

摘要(Abstract)：

高温高湿地区,由于新风的相对湿度较大,干通道内板面上容易发生冷凝,从而影响换热器的性能。本文通过可视化的试验装置观察新风风量对干通道内冷凝区域的影响,分析冷凝条件下新风风量对新风出口温度、湿球效率、换热量、冷凝量和耗水量等性能的影响。试验结果显示:增加新风风量可以减少冷凝区域,但当新风风量超过700 m~3/h,新风风量对冷凝区域影响较小。减小新风风量可以减少换热,但也可以降低出口温度和耗水量,提高了湿球效率。当风量为500～900 m~3/h时,新风出口温度最低为24.57℃,湿球效率最大为57.77%,耗水量最大为1.38 g/s。此外,新风风量对潜热换热量和冷凝量影响较小。

关键词(KeyWords)： 间接蒸发冷却器;新风风量;高温高湿地区;可视化试验台

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51678385)

作者(Author): 李晗;吕建;李勇刚;郭春梅;孟丹东;

Email:

参考文献(References)：

• [1]Qi R H,Hu Y,Wang Y H,et al.A new approach to enhance the heat and mass transfer of liquid desiccant dehumidification with a titanium dioxide superhydrophilic self-cleaning coating[J].Journal of Cleaner Production,2016,112(4):3555-3561.
• [2]Khalajzadeh V,Farmahini-Farahani M,Heidarinejad G.A novel integrated system of ground heat exchanger and indirect evaporative cooler[J].Energy&Buildings,2012,49(2):604-610.
• [3]Miyazaki T,Akisawa A,Nikai I.The cooling performance of a building integrated evaporative cooling system driven by solar energy[J].Energy&Buildings,2011,43(9):2211-2218.
• [4]Bravo G,Gonzalez E.Thermal comfort in naturally ventilated spaces and under indirect evaporative passive cooling conditions in hothumid climate[J].Energy&Buildings,2013,63(10):79-86.
• [5]Campanico H,Soares P M,Hollmuller P,et al.Climatic cooling potential and building cooling demand savings:High resolution spatiotemporal analysis of direct ventilation and evaporative cooling for the Iberian Peninsula[J].Renewable Energy,2015,85:766-776.
• [6]Moshari S,Heidarinejad G.Numerical study of regenerative evaporative coolers for sub-wet bulb cooling with cross-and counter-flow configuration[J].Applied Thermal Engineering,2015,89:669-683.
• [7]Wan Y D,Ren C Q,Wang Z,et al.Numerical study and performance correlation development on counterflow indirect evaporative air coolers[J].International Journal of Heat&Mass Transfer,2017,115:826-830.
• [8]Pandelidis D,Anisimov S.Numerical study and optimization of the cross-flow Maisotsenko cycle indirect evaporative air cooler[J].International Journal of Heat&Mass Transfer,2016,103:1029-1041.
• [9]Boukhanouf R,Alharbi A,Ibrahim H G,et al.Computer modelling and experimental investigation of building integrated sub-wet bulb temperature evaporative cooling system[J].Applied Thermal Engineering,2017,115:201-211.
• [10]Antonellis S D,Joppolo C M,Liberati P,et al.Modeling and experimental study of an indirect evaporative cooler[J].Energy&Buildings,2017,142:147-157.
• [11]Alklaibi A M.Experimental and theoretical investigation of internal two-stage evaporative cooler[J].Energy Conversion&Management,2015,95:140-148.
• [12]Riangvilaikul B,Kumar S.An experimental study of a novel dew point evaporative cooling system[J].Energy&Buildings,2010,42(5):637-644.
• [13]Duan Z Y,Zhan C H,Zhao X D,et al.Experimental study of a counter-flow regenerative evaporative cooler[J].Building&Environment,2016(104):47-58.
• [14]Ren C Q,Yang H X.An analytical model for the heat and mass transfer processes in indirect evaporative cooling with parallel/counter flow configurations[J].International Journal of Heat&Mass Transfer,2006,49(3):617-627.
• [15]Liu Z J,William A,MARK M.Simplified thermal modeling of indirect evaporative heat exchangers[J].Hvac&R Research,2013,19(3):257-267.
• [16]Antonellis S D,Joppolo C M,Liberati P,et al.Experimental analysis of a cross flow indirect evaporative cooling system[J].Energy&Buildings,2016(121):130-138.
• [17]Lee J,Lee D Y.Experimental study of a counter flow regenerative evaporative cooler with finned channels[J].International Journal of Heat&Mass Transfer,2013,65(5):173-179.
• [18]Chen Y,Yang H X,Luo Y M.Indirect evaporative cooler considering condensation from primary air:Model development and parameter analysis[J].Building&Environment,2016(95):330-345.
• [19]Chen Y,Yang H X,Luo Y M.Experimental study of plate type air cooler performances under four operating modes[J].Building&Environment,2016(104):296-310.
• [20]Chen Y,Yang H X.A simplified analytical model for indirect evaporative cooling considering condensation from fresh air:Development and application[J].Energy&Buildings,2015,108(3):387-400.