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Analysis of laminar premixed flame structure of isooctane/2-methylfuran/air mixtures with a skeletal mechanism
Combustion Theory and Modelling ( IF 1.9 ) Pub Date : 2021-09-03 , DOI: 10.1080/13647830.2021.1970231
Atmadeep Bhattacharya 1
Affiliation  

The prospects of 2-methylfuran (2MF) as a biofuel and gasoline blend stock are quite high. Therefore, a skeletal chemical kinetic mechanism – containing 238 species and 1156 reactions – for the simulation of premixed flames involving isooctane (representing gasoline)/2MF blends is proposed in the present work. The proposed model has been validated against a wide range of experimental data at various pressures, temperatures and compositions. It is demonstrated in the present work that the proposed mechanism can predict the concentrations of gaseous soot precursors as well. Moreover, the compatibility of the NOx sub-mechanism in the present model has been assured through validations against a wide range of recent experimental data. The results obtained in this work suggest that there are little chances of co-oxidation reactions among the species generated from the initial decomposition of both isooctane and 2MF. Furthermore, there is around 26% variation in the peak laminar burning velocity when the mole fraction of 2MF is increased from 10% to 90% in isooctane/2MF blend.



中文翻译:

异辛烷/2-甲基呋喃/空气混合物层流预混火焰结构的骨架机理分析

2-甲基呋喃 (2MF) 作为生物燃料和汽油混合原料的前景非常好。因此,目前的工作提出了一种骨架化学动力学机制——包含 238 个物种和 1156 个反应——用于模拟涉及异辛烷(代表汽油)/2MF 混合物的预混火焰。所提出的模型已针对各种压力、温度和成分下的各种实验数据进行了验证。目前的工作表明,所提出的机制也可以预测气态烟尘前体的浓度。此外,NO x的相容性本模型中的子机制已通过对广泛的近期实验数据的验证得到保证。在这项工作中获得的结果表明,异辛烷和 2MF 的初始分解产生的物种之间几乎没有发生共氧化反应的机会。此外,当异辛烷/2MF 混合物中 2MF 的摩尔分数从 10% 增加到 90% 时,峰值层流燃烧速度有大约 26% 的变化。

更新日期:2021-09-03
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