摘要
惰性气体对降低液态金属起始沸腾过热度有重要作用。通过考虑壁面孔穴内惰性气体的体积变化及扩散作用,分析了池式沸腾核化过程中局部参数的变化,并研究了惰性气体作用下不同变量对液态金属起始沸腾过热度的影响趋势。结果表明,惰性气体可引起复杂的次级效应,为进行准确的热流密度、压力等变量的影响分析,应充分考虑核化过程中惰性气体的影响。
Inert gas has great effect on reducing the liquid metal incipient boiling superheat. By taking into account the inert gas volume variation in the wall cavities and inert gas diffusion, the local parameter variations during pool boiling nucleation process were analyzed and the effects of different parameters on liquid metal incipient boiling superheat with inert gas effect were studied. The results show that inert gas could cause complex second-grade effect. For accurate analysis of parameter effects like heat flux and pressure, the detail consideration of inert gas effect during nucleation process is necessary.
作者
马在勇
秋穗正
步珊珊
张卢腾
孙皖
潘良明
MA Zaiyong;QIU Suizheng;BU Shanshan;ZHANG Luteng;SUN Wan;PAN Liangming(Key Laboratory of Low-grade Energy Utilization Technologies and Systems,Ministry of Education,Chongqing University,Chongqing 400044,China;State Key Laboratory of Multiphase Flow in Power Engineering,Xi’an Jiaotong University,Xi’an 710049,China;Department of Nuclear Science and Technology,Xi’an Jiaotong University,Xi’an 710049,China)
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2019年第1期110-116,共7页
Atomic Energy Science and Technology
基金
中央高校基本科研业务费专项基金资助项目(0212005202048
0903005203544)
关键词
液态金属
惰性气体
起始沸腾
核化
liquid metal
inert gas
incipient boiling
nucleation
