| 项目编号: | 1454450
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| 项目名称: | CAREER: Experimental and Numerical Study of Nanoscale Evaporation Heat Transfer for Passive-Flow Driven High-Heat Flux Devices |
| 作者: | Shalabh Maroo
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| 承担单位: | Syracuse University
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| 批准年: | 2014
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| 开始日期: | 2015-01-15
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| 结束日期: | 2019-12-31
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| 资助金额: | USD500002
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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: | nanoscale meniscus evaporation
; next-generation heat exchanger
; such heat removal process
; heated surface
; high heat flux removal
; passive liquid flow
; passive flow
; critical heat flux
; ultra-high heat removal rate
; nanoscale evaporation
; water
; solid-to-liquid heat transfer model
; water nano-meniscus evaporation
; experiment
; high-speed computing
; high heat flux
; evaporation experiment
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| 英文摘要: | 1454450 - Maroo
Ability to remove heat in large amounts and in a very short time (i.e., high heat fluxes) is critical for developing next-generation heat exchangers, high-speed computing, and renewable energy technologies. The proposed study is to take advantage that a thin liquid film at the nanoscale has the potential to achieve the ultra-high heat removal rate with proper liquid supply. Both experiments and molecular level simulations will be used to gain fundamental understanding of such heat removal processes. The integrated educational initiatives of this project will expose students, including those from underrepresented groups in engineering disciplines, to multidisciplinary research and nanotechnology. Outreach includes providing yearly research opportunity to a minority undergraduate student in collaboration with ULSAMP (Upstate Louis Stokes Alliance for Minority Participation), and yearly workshops on nanotechnology to middle-school students in Syracuse City School District as part of ULSAMP outreach to underrepresented and diverse student groups.
The objective of the proposed research is to investigate the fundamental physics associated with nanoscale meniscus evaporation coupled with passive liquid flow for achieving high heat flux removal using a synergistic research methodology of molecular simulations with pool boiling and evaporation experiments. Passive liquid flow can be generated in a nanoscale meniscus due to the strong capillary and surface-generated disjoining forces which can lower the meniscus liquid pressure to absolute negative values. The research plan focuses on (1) performing molecular dynamics simulations of water nano-meniscus evaporation to elucidate its behavior and characteristics, (2) pool boiling experiments of water coupled with nanoscale evaporation to enhance the critical heat flux, and (3) experiments on nanoscale meniscus evaporation to achieve high heat flux removal with passive flow of water. The intellectual merits include implementation and validation of a novel "solid-to-liquid heat transfer model" in molecular dynamics to simulate evaporation of water from a heated surface, and fabrication of well-defined novel geometries to achieve nanoscale meniscus evaporation. The education plan includes development and implementation of a three-week module on "Nano-science and Nano-engineering" for first-year undergraduate students in Engineering 101. The module will be based on Model Development Sequences to promote and develop the need for physical and visual understanding of mathematical models and engineering concepts while using fundamental building blocks of atoms and molecules. To assess how novice students use simulation module to explore physical phenomena, assignments with a data-generating mechanism will also be designed to collect real-time performance data. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/95193
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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: | |
Shalabh Maroo. CAREER: Experimental and Numerical Study of Nanoscale Evaporation Heat Transfer for Passive-Flow Driven High-Heat Flux Devices. 2014-01-01.
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