| 项目编号: | 1511216
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| 项目名称: | UNS: Composition-independent thermometry technique for gaseous combustion |
| 作者: | Venkateswaran Narayanaswamy
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| 承担单位: | North Carolina State University
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| 批准年: | 2014
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| 开始日期: | 2015-06-01
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| 结束日期: | 2018-05-31
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| 资助金额: | USD264628
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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: | technique
; accurate technique
; combustion flow field
; non-intrusive spectroscopic thermometry technique
; combustion regime
; other laser-based technique
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| 英文摘要: | 1511216 (Narayanaswamy)
A novel laser-based, accurate technique is proposed for measuring temperature in fuel burning devices, such as within an engine. The technique is of significance as precise knowledge of the temperature help design more energy-efficient devices with the potential to reduce pollutant emissions. The research will involve graduate students, while the outreach efforts will benefit K-12 education, especially in STEM (Science, Technology, Engineering, and Mathematics) fields.
By adding a tracer amount of inert gas krypton to the combustion flow field, the PI proposes to develop a non-intrusive spectroscopic thermometry technique that has advantages over the other laser-based techniques developed so far. First and foremost, it does not require prior information about local chemical composition, as it is the dual fluorescence excitation of the argon species, rather than other reactive or intermediate species, that determines the local temperature. Second the proposed technique provides excellent temperature sensitivity across the combustion regime. Finally, it can be matured into a superior ground testing tool in large-scale facilities. A dual excitation fluorescence imaging leverages the Doppler and collisional broadening of the absorption spectrum to determine the temperature. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/94584
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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: | |
Venkateswaran Narayanaswamy. UNS: Composition-independent thermometry technique for gaseous combustion. 2014-01-01.
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