重庆大学学报：自然科学版2012，Vol.35Issue(4)：46-51,6.
氨喷雾相变冷却换热面温度分布特性
Temperature Distribution of Heat Transfer Surface in Spray Cooling with Ammonia
摘要
Abstract
Using ammonia as coolant, experiments are performed to investigate heat transfer characteristics and surface temperature distribution for the spray cooling of 350 W/cm^2 high power solid state laser. When the heating power and spray height were constant, the cooling surface was mainly dominated by forced convective heat transfer, high inlet flow rate of liquid ammonia resulted in low surface temperature and uniform temperature distribution. When the volumetric flow was 0. 461 L/min, the cooling surface temperature was only 2.6 ℃ and the temperature deviation was ± 1. 1 ℃, the heat flux dissipated could reach 388 W/cm^2. As the inlet volumetric flow decreased, the dominant heat transfer mechanism for spray cooling gradually converted the forced convective heat transfer to the boiling while increasing heat flux, resulting in decrease of uniform temperature distribution of heat transfer surface.关键词
喷雾冷却/液氨/高热流密度/温度分布Key words
spray cooling/ammonia/high heat flux/temperature distribution分类
能源科技引用本文复制引用
陈蓉,王宏,余勇胜,周劲,朱恂,廖强,杨宝海..氨喷雾相变冷却换热面温度分布特性[J].重庆大学学报：自然科学版,2012,35(4):46-51,6.基金项目
国家自然科学基金资助项目 （）
重庆市自然科学基金资助项目 （）
“211工程”三期建设资助项目 （）
研究生科技创新基金资助项目 （）
中央高校基本科研业务费资助项目 （）
教育部留学回国人员科研启动基金资助项目 （）
