摘要
针对等离子体助燃体系中动力学调控机制不明晰的问题,本工作发展了适用于等离子体助燃体系中动力学增强机制研究的实验平台,实现了对离子/分子/自由基的全面在线诊断。本文以二甲醚的低温氧化过程为研究体系,共探测到了10种离子,13种中性组分。在此基础上,更加明晰了等离子体放电作用在低温条件下如何提高燃料的低温氧化活性,为发展二甲醚低温条件下的等离子体-燃烧反应动力学模型提供了理论方向和数据支持。
For a better understanding of the role of kinetic,enhancement mechanism in the plasma assisted combustion(PAC),the well-defined experimental platform has been developed to elucidate the fundamental plasma-assisted kinetic enhancement mechanisms.With this apparatus,a nearly full view of speciation information including ions,excited species and radicals can be detected.A comprehensive study of plasma assisted low-temperature oxidation of dimethyl ether(DME)was conducted,which allowed for the。identification of 10 ions and 13 neutral species.With the help of the detailed speciation information,we can make an effort to elucidate how the low-temperature reactivity of DME was enhanced by the plasma.Moreover,we can get more sup-port in the work of kinetic model development of the plasma-assisted DME low-temperature oxidation.
作者
廖汉东
张儒征
杨玖重
杨斌
LIAO Han-Dong;ZHANG Ru-Zheng;YANG Jiu-Zhong;YANG Bin(Department of Energy and Power Engineering and Center for Combustion Energy and Key Laboratory for Thermal Science and Engineering of MOE,Tsinghua University,Beijing 100084,China;National Synchrotron Radiation Laboratory,Hefei 230029,China)
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2020年第11期2885-2889,共5页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目(No.U1832192)。
关键词
等离子体助燃
组分诊断
二甲醚
低温氧化
动力学调控机制
plasma assisted oxidation
species diagnostic
dimethyl ether
low-temperature oxida-tion
kinetic enhancement mechanism
