| 项目编号: | 1510709
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| 项目名称: | UNS: Extension of Lean Flammability Limit by Plasma Enhancement in Stratified Flames |
| 作者: | Jyh-Yuan Chen
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| 承担单位: | University of California-Berkeley
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| 批准年: | 2014
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| 开始日期: | 2015-07-01
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| 结束日期: | 2018-06-30
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| 资助金额: | USD300000
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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: | stratified condition
; stratified methane flame
; lean flammability limit
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| 英文摘要: | 1510709 (Chen)
Low temperature, lean combustion enables low emission levels and high efficiencies of combustion devices such automobiles and jet engines. The proposed study investigates the effect of electrical field on the fuel-lean combustion and seeks to extend the limit where extra-low temperature combustion is viable. It also integrates the research activities with the education programs of undergraduate and graduate students, aiming to provide a fundamental understanding of promising technologies to the next generation of engineers and scientists in the field of combustion science.
The mechanisms of flame support under stratified conditions are investigated with a combined numerical simulations and experimental approach, on the effect of an external electric field on the lean flammability limit and flame speed of a stratified methane flame. The goals are to investigate to what extent stable combustion can be maintained in practical devices while sustaining ultra-lean conditions and, specifically, to elucidate the relative contributions of thermal and chemical effects associated with transport in the vicinity of the flame. The experimental component will be used for validation of the models used in the simulations and to confirm the efficacy of the injection and ignition strategies. The new knowledge gained will form the basis for further gains in engine efficiency. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/94292
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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: | |
Jyh-Yuan Chen. UNS: Extension of Lean Flammability Limit by Plasma Enhancement in Stratified Flames. 2014-01-01.
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