摘要
建立了一套泵驱动R134a工质阵列射流/相变耦合冷却的实验系统,实验研究了超高热流密度条件下系统的冷却性能,分析了工质流量、热负荷、相变潜热等因素对系统换热性能的影响。结果表明,将相变引入射流冷却中可以有效提高射流换热能力,实验控制流量Q_v≤1.2 L·min^(-1)·cm^(-2),热流密度为305 W/cm^2的条件下,控制发热体表面温度为57.61℃。
Jet impingement/boiling heat transfer were experimentally studied using R134a as the working fluid. The heat transfer on high heat flux was studied and the fluid flow flux and latent heat of the working fluid on heat transfer were also studied. Data on heat transfer were achieved and the results show that the heat transfer coefficients were effectively improved while boiling was introduced into jet impingement. In this study, with an average liquid flow flux of 1.2 L.min-1.cm-2, a maximum surface heat flux of 305 W/cm2 was achieved while the temperature of heater surface was 57.61℃.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2013年第3期546-549,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目(No.51225602)
关键词
阵列射流
相变
超高热流密度
jet arrays impingement
phase change
high heat flux
