乙醇和二甲醚微射流火焰燃烧特性研究

任帅; 李星; 张京; 汪小憨; 赵黛青

doi:10.11949/j.issn.0438-1157.20190003

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乙醇和二甲醚微射流火焰燃烧特性研究

能源和环境工程 | 更新时间：2026-07-24

- 乙醇和二甲醚微射流火焰燃烧特性研究
- Investigation on combustion characteristics of ethanol and dimethyl ether micro-jet flames
- 化工学报 2019年70卷第5期页码：1973-1980
- 作者机构：
  
  1.中国科学院广州能源研究所，广东广州 510640
  2.中国科学院可再生能源重点实验室，广东广州 510640
  3.广东省新能源和可再生能源研究开发与应用重点实验室，广东广州 510640
  4.中国科学院大学，北京 100049
- 作者简介：
  
  任帅（1991—），男，硕士研究生，renshuai@ms.giec.ac.cn
  李星（1984—），男，博士，副研究员，lixing@ms.giec.ac.cn
- 基金信息：
  
  国家自然科学基金项目(51336010, 51506204);国家重点研究发展计划项目(2018YFB1501500);中国科学院先导专项(XDA 21060102)
- DOI：10.11949/j.issn.0438-1157.20190003
  中图分类号： TK 16
- 收稿：2019-01-03，
  
  修回：2019-02-11，
  
  网络首发：2026-07-24，
  
  纸质出版：2019-05-05
- 稿件说明：
移动端阅览
任帅, 李星, 张京, 汪小憨, 赵黛青. 乙醇和二甲醚微射流火焰燃烧特性研究[J]. 化工学报, 2019, 70(5): 1973-1980

REN Shuai, LI Xing, ZHANG Jing, WANG Xiaohan, ZHAO Daiqing. Investigation on combustion characteristics of ethanol and dimethyl ether micro-jet flames[J]. CIESC Journal, 2019, 70(5): 1973-1980
任帅, 李星, 张京, 汪小憨, 赵黛青. 乙醇和二甲醚微射流火焰燃烧特性研究[J]. 化工学报, 2019, 70(5): 1973-1980 DOI： 10.11949/j.issn.0438-1157.20190003.

REN Shuai, LI Xing, ZHANG Jing, WANG Xiaohan, ZHAO Daiqing. Investigation on combustion characteristics of ethanol and dimethyl ether micro-jet flames[J]. CIESC Journal, 2019, 70(5): 1973-1980 DOI： 10.11949/j.issn.0438-1157.20190003.

摘要

采用实验及数值计算研究了乙醇和二甲醚微圆管射流火焰燃烧特性。通过实验观察到不同燃料流速下乙醇和二甲醚火焰都具有四种典型的火焰形态；使用平面激光诱导荧光测试系统获得了微射流火焰的OH基元分布，实验结果表明在较高流速下稳定燃烧的乙醇火焰比二甲醚火焰直径小，且略高于二甲醚火焰；采用考虑详细化学反应机理的数值计算对乙醇和二甲醚火焰进行了数值模拟，计算结果与实验现象吻合较好；利用一维非预混对冲火焰计算进一步研究了这两种燃料的化学反应路径，分析结果表明乙醇和二甲醚火焰的中间产物有显著差异，两种燃料化学反应特性的差异导致了不同的微火焰结构。

Abstract

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.

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