二甲醚层流预混双火焰㶲损特性分析

米晓庆; 李格升; 米肖雄; 周梦妮; 刘彪; 豆晓宇; 张尊华

doi:10.7652/xjtuxb202603008

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二甲醚层流预混双火焰㶲损特性分析

更新时间：2026-03-09

- 二甲醚层流预混双火焰㶲损特性分析
- Analysis of Exergy Destruction Characteristics in Laminar Premixed Dual Flames of Dimethyl Ether
- 西安交通大学学报 2026年60卷第3期页码：77-85
- 作者机构：
  
  武汉理工大学船海与能源动力工程学院，430063，武汉
- 作者简介：
  
  作者简介：米晓庆（2001—），女，硕士生；
  周梦妮（通信作者），女，副教授，博士生导师。
- 基金信息：
  
  国家自然科学基金资助项目。(52306160)
- DOI：10.7652/xjtuxb202603008
  中图分类号： TK16
- 收稿：2025-03-19，
  
  纸质出版：2026-03-10
- 稿件说明：
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米晓庆, 李格升, 米肖雄, 等. 二甲醚层流预混双火焰㶲损特性分析[J]. 西安交通大学学报, 2026,60(3):77-85.

MI Xiaoqing, LI Gesheng, MI Xiaoxiong, et al. Analysis of Exergy Destruction Characteristics in Laminar Premixed Dual Flames of Dimethyl Ether[J]. Journal of Xi'an Jiaotong University, 2026, 60(3): 77-85.
米晓庆, 李格升, 米肖雄, 等. 二甲醚层流预混双火焰㶲损特性分析[J]. 西安交通大学学报, 2026,60(3):77-85. DOI： 10.7652/xjtuxb202603008.

MI Xiaoqing, LI Gesheng, MI Xiaoxiong, et al. Analysis of Exergy Destruction Characteristics in Laminar Premixed Dual Flames of Dimethyl Ether[J]. Journal of Xi'an Jiaotong University, 2026, 60(3): 77-85. DOI： 10.7652/xjtuxb202603008.

摘要

为研究发动机先进燃烧模式中的低温燃烧过程，解析二甲醚（DME）低温燃烧过程中的能质转换机制，针对不同当量比、氮气摩尔分数、初始压力和初始温度条件下DME/O

混合物层流预混双火焰的产生条件、双火焰结构、化学反应路径以及熵产特性的进行了研究，进一步解析了不同初始工况下双火焰的㶲损特性，揭示了低温燃烧双火焰阶段能量损失的关键因素。结果表明：低压、低温和富燃工况下二甲醚层流预混双火焰特征显著，该工况下火焰结构和熵产率沿火焰轴向距离均呈现“双峰”的变化趋势，即具有两个峰值；CH

OCH

和HO

自由基摩尔分数升高，双火焰反应熵产率及总熵产率增大；当压力为0.2 MPa、N

摩尔分数为30%、温度从300 K增加至450 K时，当量比为5时的传热㶲损率降低了41.2%，当量比为10时的传热㶲损率降低了52.4%。该研究可为调控发动机低温燃烧过程、优化发动机燃烧策略提供参考。

Abstract

To investigate the low-temperature combustion process in advanced engine combustion modes and analyze the energy-mass conversion mechanism during the low-temperature combustion process of dimethyl ether (DME)

this study systematically examines the generation conditions

double flame structure

chemical reaction pathways

and entropy production characteristics of laminar premixed double flame inDME/O

mixtures under varying equivalence ratios

nitrogen mole fractions

initial pressures

and initial temperatures.The exergy destruction characteristics of double flame under different initial operating conditions are further a

nalyzed

revealing the key sources of energy loss during the double-flame stage of low-temperature combustion.The results indicate that double flame characteristics are most pronounced under lowpressure

low-temperature

and fuel-rich conditions

with both flame structure and entropy production rate exhibiting a “double peak”trend along the axial flame direction

characterized by two distinct peaks.Elevated mole fractions of CH

OCH

and HO

radicals enhance the reaction entropy production rate and total entropy production rate in double flames.When pressure is 0.2 MPa and N

mole fraction is 30%

increasing the temperature from 300 K to 450 K reduces the heat transfer exergy destruction rate by 41.2% for an equivalence ratio of 5 and by 52.4% for an equivalence ratio of 10.This study provides valuable insights for regulating low-temperature combustion processes in engines and optimizing engine combustion strategies.

关键词

Keywords

references

LU Xingcai, HAN Dong, HUANG Zhen.Fuel design and management for the control of advanced compression-ignition combustion modes[J].Progress in Ener gy and Combustion Science, 2011, 37(6)：741-783.

李东昌，汪映，孟庆斌，等.二甲醚预混比对预混压燃发动机性能影响的试验研究[J].西安交通大学学报，2013，47(3)：48-52.

LI Dongchang，WANG Ying，MENG Qingbin，et al. Experimental study on the effect of dimethyl ether premixed ratio on the performance of premixed compression ignition engine[J].Journal of Xi’an Jiaotong University，2013，47(3)：48-52.

SPLITTER D, REITZ R D, Hanson R.High efficiency, low emissions RCCI combustion by use of a fuel additive[J].SAE International Journal of Fuels and Lubricants, 2010, 3(2)：742-756.

MANOFSKY L, VAVRA J, ASSANIS D N, et al. Bridging the gap between HCCI and SI：spark-assisted compression ignition[C]//SAE 2011 World Congress and Exhibition.Warrendale, PA, USA：SAE International, 2011：10.4271/2011-01-1179.

张帆，钟生辉.内燃机条件下湍流燃烧高精度数值模[J].工程热物理学报，2024，45(12)：3876-3898.

ZHANG Fan，ZHONG Shenghui.High-precision numerical simulation of turbulent combustion under internal combustion engine conditions[J]. Engineering Thermophysics，2024，45(12)：3876-3898.

JU Y, REUTER C B, YEHIA O R, et al. Dynamics of cool flames[J].Progress in Energy and Combustion Science, 2019, 75：100787.

宋钰，张尊华，周梦妮，等.二甲醚/氨对冲扩散火焰熄灭特性及动力学分析[J].工程热物理学报，2024，45(9)：2867-2875 .

SONG Yu，ZHANG Zunhua，ZHOU Mengni，et al. Quenching characteristics and kinetic analysis of dimethyl ether/ammonia counterflow diffusion flame[J]. Journal of Engineering Thermophysics，2024，45(9)：2867-2875 .

南天天，肖红亮，张海涛，等.二甲醚和甲醇双直喷喷雾燃烧特性的光学研究[J].西安交通大学学报，2024，58(6)：153-161.

NAN Tiantian，XIAO Hongliang，ZHANG Haitao，et al. Optical study on combustion characteristics of dimethyl ether and methanol double direct injection spray[J]. Journal of Xi’an Jiaotong University，2024，58 (6)：153-161.

吕恩雨，马志豪，王鑫，等.乙醇和二甲醚在激波管内的裂解试验与动力学研究[J].西安交通大学学报，2021，55(11)：77-86.

LÜ Enyu，MA Zhihao，WANG Xin，et al. Pyrolysis test and kinetic study of ethanol and dimethyl ether in shock tube[J].Journal of Xi’an Jiaotong University，2021，55(11)：77-86.

ARCOUMANIS C, BAE C, CROOKES R, et al. The potential of di-methyl ether (DME)as an alternative fuel for compression-ignition engines：a review[J]. Fuel, 2008, 87(7)：1014-1030.

WANG Yiqing, GUAN Xuefeng, XIE Shuming, et al. Numerical studies on the ignition and propagation for spherically expanding premixed cool flames under gravitational conditions[J].Combustion and Flame, 2024, 259：113194.

JU Yiguang.On the propagation limits and speeds of premixed cool flames at elevated pressures[J].Combustion and Flame, 2017, 178：61-69.

JU Yiguang.Understanding cool flames and warm flames[J].Proceedings of the Combustion Institute, 2021, 38 (1)：83-119.

ZHAO Peng, LIANG Wenkai, DENG Sili, et al. Initiation and propagation of laminar premixed cool flames[J]. Fuel, 2016, 166：477-487.

孙国军，付忠广，卢茂奇.二甲醚、氨气和甲烷混合燃料的层流预混火焰㶲损特性研究[J].燃烧科学与技术，2022，28(3)：271-282.

SUN Guojun，FU Zhongguang，LU Maoqi.Study on laminar premixed flame exergy destruction characteristics of dimethyl ether，ammonia and methane mixed fuel[J].Journal of Combustion Science and Technology，2022，28(3)：271-282.

孙国军.二甲醚/氨气作为燃气轮机组替代燃料的基础燃烧特性研究[D].北京：华北电力大学，2022 .

LIU Yusen, ZHANG Jiabo, JU Dehao, et al. Analysis of exergy losses in laminar premixed flames of methane/hydrogen blends[J].International Journal of Hydrogen Energy, 2019, 44(43)：24043-24053.

ZHANG Xuan, WEI Jianan, LIU Haifeng, et al. The thermodynamic relationship between reducing exergy destruction and improving thermal efficiency in internal combustion engines[J].Applied Thermal Engineering, 2025, 268：125875.

ZHANG Xuan, WEI Jianan, LIU Haifeng, et al. The relationship between fuel reactivity and exergy features in combustion process[J].Energy, 2024, 288：129843.

LI Linpeng, WEI Jianan, LIU Haifeng, et al. The exergy analysis of low carbon or carbon free fuels：methane, methanol, and hydrogen under engine like conditions[J]. Fuel Processing Technology, 2023, 252：107975.

LIU Daojian, WANG Hu, ZHANG Yan, et al. On the entropy generation and exergy loss of laminar premixed flame under engine-relevant conditions[J]. Fuel, 2021, 283：119245.

肖波，殷阁媛，胡二江，等.氨气掺混二甲醚燃料层流的燃烧特性研究[J].工程热物理学报，2022，43(8)：2249-2255.

XIAO Bo，YIN Geyuan，HU Erjiang，et al. Study on laminar combustion characteristics of ammonia mixed with dimethyl ether fuel[J].Journal of Engineering Thermophysics，2022，43(8)：2249-2255.

LIU D, SANTNER J, TOGBéC, et al. Flame structure and kinetic studies of carbon dioxide-diluted dimethyl ether flames at reduced and elevated pressures[J].Combustion and Flame, 2013, 160(12)：2654-2668.

SHU Zhimei, XU Tingting, XIAO Jiayi, et al. Comprehensive kinetic study on ammonia/ethylene counterflow diffusion flames：influences of diluents[J]. International Journal of Coal Science & Technology, 2024, 11(1)：15.

MENDIBURU A Z, CARVALHO Jr J A, JU Y. Flammability limits：a comprehensive review of theory, experiments, and estimation methods[J].Energy &Fuels, 2023, 37(6)：4151-4197.

CHEN X, BöTTLER H, SCHOLTISSEK A, et al. Effects of stretch-chemistry interaction on chemical pathways for strained and curved hydrogen/air premixed flames[J].Combustion and Flame, 2021, 232：111532.

WILLIAMS F A.Combustion Theory[M].Boca Raton, FL, USA：CRC Press, 1985.

TURNS S.An introduction to combustion：concepts and applications[M].New York, USA：McGraw-Hill；2000.

ACAMPORA L, MARRA F S.Second law thermodynamic analysis of syngas premixed flames[J].International Journal of Hydrogen Energy, 2020, 45 (21 )：12185-12202.

NISHIDA K, TAKAGI T, KINOSHITA S.Analysis of entropy generation and exergy loss during combustion[J].Proceedings of the Combustion Institute, 2002, 29(1)：869-874.

BEJAN A.Advanced Engineering Thermodynamics[M]. 4th Edition.New York：John Wiley & Sons, 2016.

MOHEBBI M, REYHANIANey M, GHOFRANI I, et al. Availability analysis on combustion of n-heptane and isooctane blends in a reactivity controlled compression ignition engine[J].Proceedings of the Institution of Mechanical Engineers：Part D Journal of Automobile Engineering, 2018, 232(11)：1501-1515。

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