Theoretical Study of Bubble Departure Diameter in Subcooled Flow Boiling

被引：0
|
作者：
Jin D. [1 ]
Xiong J. [1 ]
Cheng X. [1 ]
机构：
[1] School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai
来源：
Hedongli Gongcheng/Nuclear Power Engineering | 2021年 / 42卷 / 02期
关键词：
Bubble departure diameter; Bubble dynamics; Subcooled flow boiling;
D O I：
10.13832/j.jnpe.2021.02.0082
中图分类号：
学科分类号：
摘要：
Bubble departure diameter model is an important sub-model for wall boiling calculation. In order to predict the wall heat transfer accurately, this paper models the bubble departure diameter in subcooled flow boiling by using the force balance method with a new improved bubble growth model. Bubble growth model considers the contribution of microlayer, superheated layer and subcooled liquid layer at the top of bubble to bubble growth. It is validated through the comparison with the saturated boiling and subcooled boiling experiments, and the prediction results show good agreement with the experimental data. Three databases for subcooled flow boiling are selected to validate the bubble departure diameter model, and the predictive accuracy is in acceptable error range. © 2021, Editorial Board of Journal of Nuclear Power Engineering. All right reserved.
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页码：82 / 87
页数：5
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