Combustion of Highly Strained Hydrocarbons: Non-Intrusive Isomer Specific Detection of Complex Combustion Intermediates

高张力碳氢化合物的燃烧：复杂燃烧中间体的非侵入式异构体特异性检测

• 批准号: 1336105
• 负责人: Peter Weber
• 金额: $ 30万
• 依托单位: Brown University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2018-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1336105&HistoricalAwards=false
• 关键词: Combustion; Highly; Strained; Hydrocarbons; Non

1336105WeberCombustion reactions are of great importance for basic combustion science as well as for the development of efficient and clean engines. Highly strained hydrocarbons are of particular interest since they are candidates for high-energy density fuels. Established techniques for flame composition analysis, such as VUV photoionization mass spectrometry, IR or Raman spectroscopy are difficult because either the molecules can isomerizes on their way to a detector, or the high temperature of the flame makes spectra too complex to analyze. This project develops a novel technique, Rydberg Fingerprint Spectroscopy, to identify the molecular compounds in the flame. Following calibration and comparison with data from a molecular beam photoionization implementation, the technique will use a radar method for in-flame analysis. The technique enables non-intrusive and in-situ detection of complex molecular species and reveals highly resolved spectra that are molecular structure sensitive while being insensitive toward temperature. Consequently, the method is promising for sampling flame components at the high temperature of a flame. We explore the combustion of quadricyclane and norbornadiene, highly strained hydrocarbons with the formula C7H8. The proposed new method for flame diagnostics can also be used for future combustion science studies and for commercial implementations. The project will involve one graduate student and form the basis of the student?s dissertation. The PI will work with Leadership Alliance, a national consortium headquartered at Brown University enhancing undergraduate students? interest in pursuing graduate education and success in their careers.

1336105WeberCombustion反应对于基本燃烧科学以及高效和干净的发动机非常重要。 高度应变的碳氢化合物特别感兴趣，因为它们是高能密度燃料的候选者。 建立的火焰成分分析的技术，例如Vuv光电离质谱法，IR或拉曼光谱很困难，因为分子可以在通往探测器的途中异构化，或者火焰的高温使光谱使光谱太复杂而无法分析。 该项目开发了一种新型技术Rydberg指纹光谱，以识别火焰中的分子化合物。 在校准并与分子光束光电离实现的数据进行了比较之后，该技术将使用雷达方法进行固体分析。 该技术可实现对复杂分子物种的非侵入和原位检测，并揭示了高度分辨的光谱，这些光谱是分子结构敏感的，同时对温度不敏感。 因此，该方法有望在火焰的高温下对火焰成分进行采样。 我们探索了四氯酸酯和北丁二烯的燃烧，其高度应变的碳氢化合物与配方C7H8。 提出的新的火焰诊断方法也可以用于将来的燃烧科学研究和商业实施。 该项目将涉及一名研究生，并构成学生论文的基础。 PI将与总部位于布朗大学的国家联盟领导联盟合作，以增强本科生？对追求研究生教育和职业成功的兴趣。