| 项目编号: | 1511453
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| 项目名称: | UNS: Spatial Control of Condensate and Wetting Regimes using Heterogeneous and Hierarchical Surface Structures for Enhanced Heat Transfer |
| 作者: | Matthew McCarthy
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| 承担单位: | Drexel University
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| 批准年: | 2014
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| 开始日期: | 2015-09-01
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| 结束日期: | 2018-08-31
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| 资助金额: | USD300869
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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: | project
; heat transfer rate
; surface
; precise control
; condensate removal
; surface wettability
; heterogeneous surface structure
; heterogeneous surface
; low surface energy polymeric material
; nanostructured surface
; heat transfer system
; spatial control
; high surface area nanostructure
; condensate droplet
; heat transfer
; condensate dynamics
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| 英文摘要: | CBET - 1511453
PI: McCarthy, Matthew
The goals of this project are to develop heterogeneous surface structures and investigate effects of spatially varying surface wettability and thermal conductivity on wetting and heat transfer rates during condensation. The project seeks to improve heat transfer rates by maintaining precise control of the liquid-vapor interfaces and segregating wetted and non-wetted regions on engineered surfaces. Thus, results of the project could improve the design of heat transfer systems and increase energy efficiency for a variety of applications, including electronics cooling, desalination and water purification, and chemical processing. The project will involve graduate and undergraduate students, and outreach activities are planned to engage local students, especially those from under-represented groups.
The project will combine bio-templated nanofabrication techniques and initiated chemical vapor deposition (iCVD) to create heterogeneous surfaces with patterned variations in wettability and thermal conductivity. The bio-templating process uses self-assembly and metallization of the Tobacco mosaic virus to create a uniform layer of high surface area nanostructures. iCVD is used to coat the nanostructured surfaces with thin layers of low surface energy polymeric materials. The combination of mixed wettability and mixed conductivity will provide spatial control over condensate droplets to enhance heat transfer. The investigators will use confocal scanning laser microscopy and high-speed imaging during condensation and condensate removal to characterize the performance of surfaces and the effects of heterogeneous architectures. Results could guide practitioners in improving condensation heat transfer rates by enabling precise control over condensate dynamics. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/93600
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Matthew McCarthy. UNS: Spatial Control of Condensate and Wetting Regimes using Heterogeneous and Hierarchical Surface Structures for Enhanced Heat Transfer. 2014-01-01.
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