摘要
实验以去离子水为工质,研究矩形窄通道内饱和沸腾起始点的影响因素。通过改变矩形板的壁面加热功率密度,工质的质量流量和入口温度分析饱和沸腾起始点的变化规律.实验得出:饱和沸腾段随着加热功率密度的增加而增加,随着质量流量的增加而缩短,随着入口温度的增加而增加,但入口温度在高加热功率密度时对饱和沸腾起始点的影响相对较小,在低加热功率密度下影响较大。
Ionized water was used to investigate the factors of FDB starting point in a rectangular narrow channel.To analyse the rule of FDB starting point,the heating power density on the wall,the mass flow rate and the inlet temperature of working fluid were changing.Derived from experiments the length of FDB section increased with the increase of heating power density but shortened with increase of mass flow rate.The length of FDB section increased with the increase of the inlet temperature,but with the decrease of heating power density.And the inlet temperature had a greater impact with a small heating power density,but a smaller impact with a high heating power density.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2014年第8期1629-1632,共4页
Journal of Engineering Thermophysics
基金
国家高科技研究发展计划(No.2008AA05Z204)
关键词
热工学(制冷及低温工程)
饱和沸腾起始点
实验研究
矩形窄通道
thermal engineering(refrigeration and cryogenic engineering)
FDB starting location
experimental study
rectangular narrow channels
