摘要
针对有高温高速强扰动热源的狭长空间,在通风降温仍无法满足降温要求,且不允许采用冷冻降温等方式时引入细水雾降温技术进行辅助降温。选用三种不同型号的细水雾雾化喷嘴进行流量特性及降温试验研究。分析试验数据得出多个喷嘴联合运行时流量特性仍与单个喷嘴样本数据吻合较好。通过试验研究了通风量、喷雾压力、喷嘴组合方式等因素对降温效果的影响,试验数据表明喷雾压力对降温效果的影响较通风量和喷嘴组合方式更显著。
For long and narrow space with a strong heat source in high temperature and high speed, ventilation can＇t meet the requirements to cooling the space. The water mist technology has been introduced for auxiliary cooling when other cooling type such as frozen cooling is not applicable. Three different types of atomizing nozzle was been chosen for the test of pressure-flow characteristics and cooling effect. Thought the analysis of experimental data, the flow rate of combined nozzles matches well with the sample data. Comparison of the cooling effect of different ventilation rate, spray pressure and arrangements of the nozzles, the spray pressure is more significant than the ventilation rate and arrangements of the nozzles.
出处
《建筑热能通风空调》
2013年第1期1-4,32,共5页
Building Energy & Environment
基金
十二五"国家科技支撑计划项目(2011BAJ08809)
关键词
热工学喷雾降温细水雾流量特性
pyrology, spray cooling, water mist, pressure-flow characteristic
