摘要
针对空冷机组在夏季高温天气不能满发的问题,采用喷雾增湿以降低入口空气的干球温度,选用3种喷嘴进行喷嘴组合喷雾降温性能的实验研究。对实验数据进行热湿交换分析,得到冷却效果与入口干湿球温差×供水流量(ΔT×L)间的关系并给出关系式的适用范围。通过比较相关各工况的拟合曲线,得出当ΔT×L相同时,喷嘴TF6的喷雾降温效果好于喷嘴TF8;加入第4排AM4有利于冷却效果的提高;一二四排喷雾(排间距为500mm)与一三四排喷雾(排间距为1000mm)两种排列方式的冷却效果基本相同。
Aiming at the problem of air-cooling condenser output limit, the spray humidification system was presented to reduce inlet air temperature, and different layouts of three atomizing nozzles were chosen for inlet spray cooling. Through the heat and mass transfer analyses of experiment data, the fitting correlation which evaporative cooling is major cooling mechanism was acquired and the application scope was also given. And the comparisons of fitting curves show that the cooling effect of nozzle TF6 is better than TF8 when ( ( AT x L) ) is same. And the addition 4th line of AM4 is helpful for cooling effect enhancement. However, there is no obvious difference for cooling effect of linel, 2, 4 spray (row distance 500mm) and linel, 3, 4 spray (row distance 1000mm).
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2013年第8期1373-1379,共7页
Acta Energiae Solaris Sinica
基金
国家"十二五"科技支撑计划(2011BAJ08B09)
关键词
增湿型空冷器
组合喷嘴
喷雾降温
降温效果拟合曲线
spray humidification air-cooling system
nozzle combination
spray cooling
cooling effect fitting curve