建立了一种新型露点间接蒸发冷却器试验系统,通过试验方法研究了其在8种模拟气候条件下的适用性。试验结果显示,一次空气流量为150m2/h时,湿球效率变化范围为80%~99%,露点效率变化范围为50%~75%,制冷量变化范围为0.27—0.71kW,出口空气温湿度可满足呼和浩特、酒泉及乌鲁木齐3种气候条件下人的热舒适需求;当一次空气流量为1500m2/h时,湿球效率变化范围为39%~47%,露点效率变化范围为25%~32%,制冷量变化范围为1.2~3.3kW,出口空气温湿度无法满足人的热舒适需要。
A novel dew point indirect evaporative cooling system was constructed and experiments were carried out to investigate the climate suitability in China ( eight simulated climatic conditions). The results showed that when the primary air flow rate is 150m3/h, the Wet bulb efficiency ranged between 80% -99% and the dew point efficiency between 50% - 75%, cooling capaci- ty between 0.27 -0.71 kW, The outlet air temperature and humidity can meet the thermal comfort needs of the people in Hohhot, Jiuquan and Urumqi. When the primary air flow rate is 1500m3/h,the Wet bulb efficiency ranged between 39% -47% and the dew point efficiency between 25% -32% , cooling capacity between 1.2 -3.3 kW, the outlet air emperature and humidity can not meet people' s thermal comfort needs.