| 项目编号: | 1643347
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| 项目名称: | EAGER: Investigation of Nucleate Boiling Phenomena using Hierarchically Porous Constructs with Well-Defined Microstructure |
| 作者: | Yoonjin Won
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| 承担单位: | University of California-Irvine
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| 批准年: | 2016
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| 开始日期: | 2016-09-01
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| 结束日期: | 2018-08-31
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| 资助金额: | 119999
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Engineering - Chemical, Bioengineering, Environmental, and Transport Systems
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| 英文关键词: | porous material
; heat transfer
; study
; engineer nucleate
; well-defined porous structure
; nucleate boiling phenomena
; porous metallic construct
; nucleate boiling phenomenon
; porous media
; hierarchically porous construct
; porous metallic structure
|
| 英文摘要: | Investigation of Nucleate Boiling Phenomena using Hierarchically Porous Constructs with Well-Defined Microstructure
Phase change heat transfer has been a topic of significant scientific and technological interest as it can serve as an efficient cooling method for high heat flux applications. Nucleate boiling is one of the most effective heat transfer mode, which is governed by a complex process of bubble growth on, and departure from, heating surfaces. Textured surfaces and porous materials have been commonly used to enhance the surface area for heat transfer and the bubble nucleation kinetics. To more effectively utilize nucleate boiling in technological practice, it is essential to better understand the dynamics of bubble nucleation and departure on textured surfaces and porous materials. Such studies will provide multi-disciplinary training opportunities that merge thermal transport physics, nanoengineering, and materials science. The insights gained from such a study would enable advances in a wide range of technologies in which thermal management is critical, including high-power-density electronic devices, data servers, and electronic warfare.
The proposed study will seek to design hierarchically porous metallic constructs to engineer nucleate boiling heat transfer. To this end, this study will utilize a new class of three-dimensional (3D) hierarchically porous metallic structures using a recently developed soft matter templating method with independent control over two scales of pore sizes (from nano- to tens of micrometers). The materials system with well-defined porous structure will help to investigate how hierarchical pore distribution affects bubble size, frequency and nucleate boiling phenomena. Simultaneous parametric computational studies and preliminary results from boiling and wetting tests will help to advance fundamental understandings of thermal transport mechanism through porous media. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/91192
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Yoonjin Won. EAGER: Investigation of Nucleate Boiling Phenomena using Hierarchically Porous Constructs with Well-Defined Microstructure. 2016-01-01.
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