摘要
为了提高间接蒸发冷却器换热效率,提出了将气-水雾化喷嘴应用于间接蒸发冷却器改进换热器表面水膜的均匀性,实验研究了扇形两相(气-水)喷嘴在不同空气压力和水压下的特性,测出了不同压力时喷嘴雾化角和气水质量流量值,得出了其变化规律,确定出了最佳的喷雾气水压力比和雾化角等参数。
We present a two phase air-water nozzle that can be applied to indirect evaporative cooling to improve the heat transfer efficiency of indirect evaporative coolers by improving the uniformity of the water film on the surface of the heat exchanger. The spray characteristics of a nozzle with a fan-shaped orifice at various air and water pressure conditions was studied. The spray cone angle, the air-water mass flow rate, and the relationship between the mass flow rate and the air-water pressure ratio were obtained. The best air-water pressure ratio and spray cone angle were also found.
出处
《重庆建筑大学学报》
EI
CSCD
北大核心
2008年第6期124-127,共4页
Journal of Chongqing Jianzhu University
关键词
间接蒸发冷却
雾化特性
喷嘴
雾化角
indirect evaporative cooling
spray characteristics
nozzle
spray cone angle
