Numerical investigation of the burning characteristics of ventilation air methane in a combustion based mitigation system

Numerical investigation of the burning characteristics of ventilation air methane in a combustion based mitigation system
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基于燃烧的缓解系统中通风甲烷燃烧特性的数值研究

DOI:
10.1016/j.fuel.2014.05.022
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发表时间:
2014
期刊:
影响因子:
7.4
通讯作者:
Mira Martinez D
Mira Martinez D
中科院分区:
工程技术1区
文献类型:
--
作者:
Mira Martinez D

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采用大涡模拟方法,研究了一种燃烧减排系统中的反应流场。该应用是基于通风空气甲烷的预热和燃烧。预热和甲烷浓度的影响进行了检查在五个计算情况下。结果表明,通风空气甲烷的氧化可以发生在一个共同的环形射流配置提供的预热温度高达500 K的混合物含有低浓度的甲烷为0.5%。研究发现,甲烷浓度和预热水平控制着最终导致反应和燃烧的氧化过程。
Large-eddy simulation of the reacting flow field in a combustion-based mitigation system to reduce the emissions of methane contained in ventilation air methane is presented. The application is based on the preheating and combustion of ventilation air methane. Effects of preheating and methane concentration are examined in five computational cases. The results indicate that the oxidation of the ventilation air methane can take place in a co-annular jet configuration provided that the preheating temperature is as high as 500 K for mixtures containing a low methane concentration of 0.5%. It is found that the oxidation process that eventually leads to reaction and combustion is controlled by the methane concentration and the level of preheating.
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