| 项目编号: | 1706039
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| 项目名称: | Thermal Evaporation around Optically-Excited Functionalized Nanoparticles |
| 作者: | Tengfei Luo
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| 承担单位: | University of Notre Dame
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| 批准年: | 2017
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| 开始日期: | 2017-09-01
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| 结束日期: | 2020-08-31
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| 资助金额: | 350000
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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
; liquid evaporation
; photo-excited functionalized nanoparticle
; optical absorber-assisted thermal evaporation
; overall evaporation effect
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| 英文摘要: | Optical absorber-assisted thermal evaporation can enable a variety of innovative renewable energy applications, ranging from water purification to chemical fractionation. Many of these applications can catalyze new industries and hence drive global economic growth. For example, the ability to use solar energy for fresh water production will tackle many challenges in the water-energy nexus. The present project is motivated by a recently observed liquid evaporation using highly localized heating effect from functionalized light absorbing nanoparticles. In such a demonstration, water vapor was generated while the bulk temperature remained at about 30 degrees C. The underlying physics is not yet understood, and the mechanism is related to the convoluted multi-phase (liquid-vapor-solid) thermal and mass transport, which needs this multi-disciplinary study to unlock. The fundamental thermal transport science to be gained from this project is expected to guide the development of new technologies to utilize solar energy, resulting in significant broader impacts on applications. This project will enable the education and training of graduate students and undergraduate students from under-represented groups in the universities.
This project is driven by the hypothesis that enhanced interfacial thermal transport and the self-assembled monolayer defect-assisted nucleation combine to enhance bubble generation and improve the overall evaporation effect. To test this hypothesis, the objectives of this proposal are to (1) understand the fundamental relationship between the surface functionalization, thermal transport and the subsequently mass transport in bubble dynamics through a combination of molecular simulations and mesoscale hydrodynamics modeling; and (2) validate such a relationship through experiments on vapor generation around photo-excited functionalized nanoparticles. This project will employ a combination of molecular simulation, mesoscale modeling and experimental validation to achieve a multi-scale understanding of this fundamental problem with unprecedented resolution. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/89242
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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: | |
Tengfei Luo. Thermal Evaporation around Optically-Excited Functionalized Nanoparticles. 2017-01-01.
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