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Effect of pulse heating parameters on the microscale bubble dynamics at a microheater surface
Xu, Jinliang1; Zhang, Wei1,2
2008
发表期刊INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
ISSN0017-9310
卷号51期号:1-2页码:389-396
通讯作者xujl@ms.giec.ac.cn
摘要We study the effects of pulse heating parameters on the micro bubble behavior of a platinum microheater (100 mu m x 20 mu m) immersed in a methanol pool. The experiment covers the heat fluxes of 10-37 MW/m(2) and pulse frequencies of 25-500 Hz. The boiling incipience is initiated at the superheat limit of methanol, corresponding to the homogeneous nucleation. Three types of micro boiling patterns are identified. The first type is named as the bubble explosion and regrowth, consisting of a violent explosive boiling and shrinking, followed by a slower bubble regrowth and subsequent shrinking, occurring at lower heat fluxes. The second type, named as the bubble breakup and attraction, consists of the violent explosive boiling, bubble breakup and emission, bubble attraction and coalescence process, occurring at higher heat fluxes than those of the first type. The third type, named as the bubble size oscillation and large bubble formation, involves the initial explosive boiling, followed by a short periodic bubble growth and shrinking. Then the bubble continues to increase its size, until a constant bubble size is reached which is larger than the microheater length. (C) 2007 Elsevier Ltd. All rights reserved.
文章类型Article
其他摘要We study the effects of pulse heating parameters on the micro bubble behavior of a platinum microheater (100 mu m x 20 mu m) immersed in a methanol pool. The experiment covers the heat fluxes of 10-37 MW/m(2) and pulse frequencies of 25-500 Hz. The boiling incipience is initiated at the superheat limit of methanol, corresponding to the homogeneous nucleation. Three types of micro boiling patterns are identified. The first type is named as the bubble explosion and regrowth, consisting of a violent explosive boiling and shrinking, followed by a slower bubble regrowth and subsequent shrinking, occurring at lower heat fluxes. The second type, named as the bubble breakup and attraction, consists of the violent explosive boiling, bubble breakup and emission, bubble attraction and coalescence process, occurring at higher heat fluxes than those of the first type. The third type, named as the bubble size oscillation and large bubble formation, involves the initial explosive boiling, followed by a short periodic bubble growth and shrinking. Then the bubble continues to increase its size, until a constant bubble size is reached which is larger than the microheater length. 
关键词Pulse Heating Parameter Explosive Boiling Bubble Breakup And Emission Bubble Attraction And Coalescence
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.ijheatmasstransfer.2007.09.007
研究领域[WOS]Thermodynamics ; Engineering ; Mechanics
URL查看原文
关键词[WOS]NUCLEATION ; GROWTH ; WATER
收录类别SCI
语种英语
WOS类目Thermodynamics ; Engineering, Mechanical ; Mechanics
WOS记录号WOS:000252688800037
引用统计
被引频次:28[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/3434
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Micro Energy Syst Lab, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Grad Univ Chinese Acad Sci, Beijing 100039, Peoples R China
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Xu, Jinliang,Zhang, Wei. Effect of pulse heating parameters on the microscale bubble dynamics at a microheater surface[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2008,51(1-2):389-396.
APA Xu, Jinliang,&Zhang, Wei.(2008).Effect of pulse heating parameters on the microscale bubble dynamics at a microheater surface.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,51(1-2),389-396.
MLA Xu, Jinliang,et al."Effect of pulse heating parameters on the microscale bubble dynamics at a microheater surface".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 51.1-2(2008):389-396.
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