Determination of temperature and water-concentration in fuel-rich oxy-fuel methane flames applying TDLAS
Determination of temperature and water-concentration in fuel-rich oxy-fuel methane flames applying TDLAS
复制标题
DOI：
10.1016/j.combustflame.2020.01.003
复制
发表时间：
2020-04-01
影响因子：
4.4
通讯作者：
Trimis, Dimosthenis
中科院分区：
文献类型：
--
作者：
Sentko, Matthias Martin;Schulz, Sebastian;Trimis, Dimosthenis
用纯氧（氧燃料）代替空气作为氧化剂的燃烧过程对于高温热或热化学和气化过程是有吸引力的。在这种应用中，氮气的缺乏导致更高的温度和物种浓度，这可以稳定甚至非常丰富的火焰。尽管它们的优点，但缺乏关于富氧燃料火焰的内部结构的知识，富氧燃料火焰的特征在于具有很大程度上不同的化学时间尺度的反应，即，合成气体的快速氧化反应和缓慢吸热形成。为了得到更好的了解，本研究的范围是确定轴向H2O和温度分布的平面，富燃料甲烷-氧气火焰当量比从2.5
Combustion processes with pure oxygen (oxy-fuel) instead of air as oxidant are attractive for high temperature thermal or thermochemical and gasification processes. The absence of nitrogen in such applications leads to higher temperature and species concentrations, which can stabilize even extremely rich flames. Despite their benefits, there is lack of knowledge concerning the internal structure of rich oxyfuel flames, which feature reactions with largely diverging chemical time scales, namely, the fast oxidation reactions and the slow endothermic formation of synthesis gas. In order to get a better insight, the scope of this study was to determine axial H2O- and temperature profiles of flat, fuel-rich methane-oxygen flames with equivalence ratios from 2.5