Bubble departure size in flow boiling

被引：0
|
作者：
Peng Guan
Li Jia
Liaofei Yin
Zetao Tan
机构：
[1] Beijing Jiaotong University,Institute of Thermal Energy Engineering, School of Mechanical, Electronic and Control Engineering
[2] Beijing Key Laboratory of Flow and Heat Transfer of Phase Changing in Micro and Small Scale,undefined
来源：
Heat and Mass Transfer | 2015年 / 51卷
关键词：
Bubble Growth; Bubble Diameter; Bubble Radius; Annular Channel; Vapor Quality;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Flow boiling experiments were conducted in a vertical annular channel to study bubble departure characteristics. Deionized water was used as the working fluid, and the tests were performed at atmospheric pressure. Bubble departure diameters were obtained from the images which were captured by a high-speed digital camera. The relationship between bubble contact diameter and departure diameter was discussed. A new model base on force balance analysis, taking bubble contact diameter into account for predicting bubble departure diameter is proposed in this study. A good agreement between predicted and measured results is achieved.
引用
收藏
页码：921 / 930
页数：9
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