Investigation on combustion characteristics of ethanol and dimethyl ether micro-jet flames

被引：0
|
作者：
Ren S. [1 ,4 ]
Li X. [1 ,2 ,3 ]
Zhang J. [1 ,2 ,3 ]
Wang X. [1 ,2 ,3 ]
Zhao D. [1 ,2 ,3 ]
机构：
[1] Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640, Guangdong
[2] CAS Key Laboratory of Renewable Energy, Guangzhou, 510640, Guangdong
[3] Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640, Guangdong
[4] University of Chinese Academy of Sciences, Beijing
来源：
Huagong Xuebao/CIESC Journal | 2019年 / 70卷 / 05期
关键词：
Chemical reaction characteristics; Dimethyl ether; Ethanol; Flame shape; Microscale non-premixed flame;
D O I：
10.11949/j.issn.0438-1157.20190003
中图分类号：
学科分类号：
摘要：
Combustion characteristics of ethanol and dimethyl ether (DME) micro-jet flames were investigated experimentally and numerically. Four typical flames were observed in experiments of both ethanol flames and DME flames. The OH distributions of micro-jet flames were obtained by using OH-Planar Laser Induced Fluorescence (OH-PLIF) measuring system, the results showed that stable ethanol flames at relatively high velocities have smaller diameter and are slightly higher than counterparts of DME flames. Numerical simulation of ethanol and DME micro-jet flames were performed by numerical computations with a detailed chemical reaction mechanism, and the computed results agreed well with the experimental results. Reaction flux analyses of these two fuels were also performed with numerical calculation of one-dimensional non-premixed counterflow flame, which showed that there is a significant difference in intermediate species between the ethanol and DME flames. And the difference in chemical reaction characteristics leads to the difference in the flame structure of these two fuels. © All Right Reserved.
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页码：1973 / 1980
页数：7
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