The impact of roaming radicals on the combustion properties of transportation fuels

The impact of roaming radicals on the combustion properties of transportation fuels
复制标题

漫游自由基对运输燃料燃烧性能的影响

DOI:
10.1016/j.combustflame.2018.05.020
复制
发表时间:
2018
影响因子:
4.4
通讯作者:
Goldsmith, C. Franklin
Goldsmith, C. Franklin
中科院分区:
工程技术2区
文献类型:
--
作者:
West, Richard H.;Goldsmith, C. Franklin

文献摘要

参考文献

被引文献

相似文献

本文系统地研究了自由基漫游反应对运输燃料整体燃烧性能的影响。开发了新的软件,可以自动预测给定化学动力学机制内所有可能的漫游路径。这种新的方法被应用到两个机制,从文献中,一个为庚烷和丁醇。点火延迟时间和层流火焰速度计算在广泛的条件下,同时测试不同程度的漫游。随着漫游程度的增加,点火延迟增加,与漫游降低系统反应性的假设一致。点火延迟的百分比增加是强烈的温度依赖性,与最大的影响中看到的负温度系数制度。在这个温度范围之外,漫游对全局燃烧特性的影响很小,对于点火延迟来说大约是百分之几,对于火焰速度来说小于百分之一。用于创建新机制和测试漫游对燃烧特性影响的软件可免费获得,并提供详细的教程,使其能够应用于庚烷和丁醇以外的燃料。
A systematic investigation on the effects of roaming radical reactions on global combustion properties for transportation fuels is presented. New software was developed that can automatically predict all the possible roaming pathways within a given chemical kinetic mechanism. This novel approach was applied to two mechanisms taken from the literature, one for heptane and one for butanol. Ignition delay times and laminar flame speeds were computed over a broad range of conditions, while testing varying degrees of roaming. As the degree of roaming is increased, the ignition delays increased, consistent with the hypothesis that roaming decreases the reactivity of the system. The percent increase in the ignition delay is strongly temperature dependent, with the largest effect seen in the negative temperature coefficient regime. Outside of this temperature range, the effect of roaming on global combustion properties is small, on the order of a few percent for ignition delays and less than a percent for flame speeds. The software that was used to create the new mechanisms and test the effects of roaming on combustion properties are freely available, with detailed tutorials that will enable it to be applied to fuels other than heptane and butanol.
非热产物能量分布对酮氢过氧化物分解动力学的影响
DOI: --
发表时间: 2015
期刊:
影响因子: --
作者:
C. Goldsmith;M. P. Burke;Y. Georgievskii;S. Klippenstein
通讯作者: S. Klippenstein
O2 存在下 OH C2H2 反应的动力学
DOI: 10.1039/ft9969201459
发表时间: 1996
期刊: Journal of the Chemical Society, Faraday Transactions
影响因子: --
作者:
B. Bohn;M. Siese;Cornelius Zetzschn
通讯作者: Cornelius Zetzschn
DOI: 10.1021/jp208347j
发表时间: 2011-12-22
影响因子: 2.9
作者:
Klippenstein, Stephen J.;Georgievskii, Yuri;Harding, Lawrence B.
通讯作者: Harding, Lawrence B.
DOI: --
发表时间: 2014
期刊:
影响因子: --
作者:
Peng Zhang;S. Klippenstein;L. B. Harding;Hongyan Sun;C. Law
通讯作者: C. Law
DOI: --
发表时间: 2008
期刊:
影响因子: --
作者:
S. Lahankar;V. Goncharov;F. Suits;John D. Farnum;J. Bowman;A. Suits
通讯作者: A. Suits