Lanzhou University of Technology Institutional Repository (LUT_IR)
Bubble behaviors during subcooled pool boiling in water and nonionic surfactant aqueous solution | |
Guo, Dong-Sheng1; Li, Xiao-Bin1; Zhang, Hong-Na1; Li, Feng-Chen1; Su, Wen-Tao2; Zhu, Han1,3 | |
2020-10 | |
发表期刊 | International Journal of Heat and Mass Transfer |
ISSN | 00179310 |
卷号 | 159 |
摘要 | A visualization study of the bubble behavior in pool boiling of ultra-pure water and surfactant aqueous solution (Triton X-114) under different heat fluxes was performed, using a narrow transparent bare FTO heating surface with various subcooling degrees of 5°C, 25°C and 35°C, respectively. It is shown that with the decrease of liquid subcooling, bubble coalescence in ultra-pure water becomes obvious. Whilst with the increase of liquid subcooling, the bubble surface gets rough and unstable. In contrast, a newly discovered phenomenon of bubble-bubble (BB) penetration occurs in the surfactant solution under the same working condition as that in water. BB penetration behavior is a bubble interaction without coalescence. This bubble behavior is believed to be the results of micro-convection due to the shrinkage of the bubble root, and the Marangoni effect due to the surface tension gradient. Combination of Marangoni effect and bubble surface movement causes the surfactant molecules to aggregate toward the bubble root, and it effectively promotes the nucleation of the next bubble. Owe to the rapid growth of newly nucleated bubbles, the bubble-bubble penetration and piercing behaviors happen during the growth stage. The newly nucleated bubble partially accelerates the first bubble departure, also interacts with the first bubble by forming a tiny vapor channel. This phenomenon should be one of the reasons of enhanced heat transfer using surfactant solutions. © 2020 |
关键词 | Coalescence Nonionic surfactants Bubble coalescence Bubble interaction Enhanced heat transfer Liquid subcooling Penetration behavior Surface tension gradient Surfactant molecules Surfactant solution |
DOI | 10.1016/j.ijheatmasstransfer.2020.120087 |
收录类别 | EI ; SCIE |
语种 | 英语 |
WOS研究方向 | Thermodynamics ; Engineering ; Mechanics |
WOS类目 | Thermodynamics ; Engineering, Mechanical ; Mechanics |
WOS记录号 | WOS:000560367300031 |
出版者 | Elsevier Ltd |
EI入藏号 | 20202808914901 |
EI主题词 | Cooling |
EI分类号 | 641.2 Heat Transfer - 801.3 Colloid Chemistry - 803 Chemical Agents and Basic Industrial Chemicals |
来源库 | Compendex |
分类代码 | 641.2 Heat Transfer - 801.3 Colloid Chemistry - 803 Chemical Agents and Basic Industrial Chemicals |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/115676 |
专题 | 兰州理工大学 能源与动力工程学院 |
通讯作者 | Li, Xiao-Bin |
作者单位 | 1.Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China; 2.Liaoning Shihua Univ, Coll Petr Engn, Fushun 113001, Peoples R China; 3.Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou 730050, Peoples R China |
推荐引用方式 GB/T 7714 | Guo, Dong-Sheng,Li, Xiao-Bin,Zhang, Hong-Na,et al. Bubble behaviors during subcooled pool boiling in water and nonionic surfactant aqueous solution[J]. International Journal of Heat and Mass Transfer,2020,159. |
APA | Guo, Dong-Sheng,Li, Xiao-Bin,Zhang, Hong-Na,Li, Feng-Chen,Su, Wen-Tao,&Zhu, Han.(2020).Bubble behaviors during subcooled pool boiling in water and nonionic surfactant aqueous solution.International Journal of Heat and Mass Transfer,159. |
MLA | Guo, Dong-Sheng,et al."Bubble behaviors during subcooled pool boiling in water and nonionic surfactant aqueous solution".International Journal of Heat and Mass Transfer 159(2020). |
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