EFFECT OF DILUTION BY NITROGEN AND/OR CARBON DIOXIDE ON METHANE AND ISO-OCTANE AIR FLAMES
EFFECT OF DILUTION BY NITROGEN AND/OR CARBON DIOXIDE ON METHANE AND ISO-OCTANE AIR FLAMES
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DOI：
10.1080/00102200902864662
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发表时间：
2009-01-01
影响因子：
1.9
通讯作者：
Mounaim-Rousselle, C.
中科院分区：
文献类型：
--
作者：
Halter, F.;Foucher, F.;Mounaim-Rousselle, C.
研究了稀释对甲烷和异辛烷两种不同燃料层流燃烧速度的影响。在本研究中，使用三种不同的稀释剂-氮气，二氧化碳，和甲烷化学计量燃烧产生的废气的混合物代表。实验结果和PREMIX计算的CHEMKIN包，使用两种不同的动力学计划，并与文献结果进行比较，当可用的。初始压力和温度条件分别为0.1MPa和300 K。对于这两种燃料，一个更大的减少层流燃烧速度得到的二氧化碳稀释比氮气稀释。该观察结果与稀释气体的热容量的增加直接相关，但也与二氧化碳解离直接相关，即使热容量效应似乎是主要的。
The impact of dilution on laminar burning speed of two different fuels (methane and isooctane) is studied. In the present study, three different diluents are used-nitrogen, carbon dioxide, and a mixture representative of exhaust gases issued from a stoichiometric combustion of methane. Experimental results and PREMIX computations of the CHEMKIN package, using two different kinetic schemes, are presented and compared with literature results, when available. Initial pressure and temperature conditions are respectively 0.1 MPa and 300 K. For both fuels, a larger decrease of the laminar burning speed is obtained for carbon dioxide dilution than for nitrogen dilution. This observation is directly linked to the increase in heat capacity of the dilution gas but also to the carbon dioxide dissociation, even if the heat capacity effect seems to be predominant.