环形狭缝通道中流动沸腾干涸点的实验研究  

Experimental study on dryout point of flow boiling in narrow annular channel

作　　者：丁国忠[1] 黄素逸[1] 苏顺玉[1] 舒水明[1] 

机构地区：[1]华中科技大学能源与动力工程学院,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2007年第4期89-91,共3页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50076014);国家重点基础研究发展计划资助项目(G2000026303)

摘　　要：在间隙为1mm和1．5mm的垂直环形通道内，以去离子水为工作介质，对内外管通电加热，进行了环形狭缝通道内干涸点的实验研究，实验压力范围为0．1～0．3MPa，质量流速为6～60kg／（m^2·s）．实验得到了不同质量流速对应的热流密度及其干涸点位置，并且有可再现性．实验结果表明干涸点随着质量流速的增加后移．给出了计算环形狭缝通道干涸点的计算关系式．An experimental study on the dryout point of flow boiling in narrow annular channels with 1 mm and 1.5 mm annular gap are performed. Distilled water is used as the work fluid, the range of pressure is limited within 0. 1-0.3 MPa and that of mass flux is 6-60 kg/（m^2·s）. The locaton of dryout point with different mass flux and different heat flux is identified by experiment and the results can be attained repeatedly. The experimental results shows that the location of dryout point will shift behind with the increase of mass flux. The results are analysized and the calculation formation is reached.

关 键 词：环形狭缝 流动沸腾 干涸点 

分 类 号：TK124[动力工程及工程热物理—工程热物理]