热能与动力

二甲醚燃烧双火焰及排放特性

  • 韩冬雪 ,
  • 蒋鹏 ,
  • 尹鸿鸣
展开
  • (大连海事大学 a.环境科学与工程学院;b.轮机工程学院,辽宁 大连 116026)
韩冬雪(1991—),女,博士生,E-mail:dnx_han@163.com.

收稿日期: 2018-05-17

  修回日期: 2018-07-24

  网络出版日期: 2018-07-24

基金资助

国家自然科学基金资助项目(U1232135).

Double flames and emission characteristic of dimethyl ether combustion

  • HAN Dong-xue ,
  • JIANG Peng ,
  • YIN Hong-ming
Expand
  • (a. Environmental Sciences and Engineering College;b.Marine Engineering College, Dalian Maritime University, Dalian 116026, China)

Received date: 2018-05-17

  Revised date: 2018-07-24

  Online published: 2018-07-24

摘要

针对二甲醚与空气预混燃烧特性,利用在线光谱与色谱技术研究不同当量比对其燃烧的影响.二甲醚和空气预混气当量比小于1时,出现双火焰,利用光谱在线研究不同当量比时双火焰的发光情况;当量比大于1时,利用气相色谱法在线检测了尾气排放,检测到的非常规排放物除常见的甲醛和甲醇外,还检测到了乙醛,同时探讨了当量比对尾气中三种排放物浓度的影响.光谱结果表明,双火焰时上方火焰只有OH*发光和非常微弱的CH*发光,而下方火焰中有OH*、CH*以及C2*的发光谱带,且CH*和C2*的发光强度随当量比的减小而减弱.气相色谱结果表明,尾气中甲醇和乙醛的浓度随当量比减小而减小,甲醛排放量随当量比减小先增加后减小.

本文引用格式

韩冬雪 , 蒋鹏 , 尹鸿鸣 . 二甲醚燃烧双火焰及排放特性[J]. 大连海事大学学报, 2018 , 44(4) : 106 -114 . DOI: 10.16411/j.cnki.issn1006-7736.2018.04.016

Abstract

For combustion characteristics of dimethyl ether (DME)/air pre-mixture, the influence of different equivalence ratio on combustion was studied by on-line spectroscopy and chromatography. When the equivalence ratio was less than 1, double flames appeared, and the luminescence of double flames at different equivalence ratio was studied by on-line spectroscopy. When the equivalent ratio was greater than 1, gas chromatography was used to detect the exhaust emissions online, besides the common formaldehyde and methanol, acetaldehyde was also detected, and the influence of equivalent ratio on the concentration of above three exhaust emissions was also discussed. Spectroscopic results show that the upper flame has only OH* and very weak CH* emission, while the lower flame has OH*, CH* and C2* emission bands, and the emission intensity of CH* and C2*decreases with the decrease of equivalence ratio. The results of gas chromatography show that the concentration of methanol and acetaldehyde in tail gas decreases with the decrease of equivalent ratio, and the emission of formaldehyde increases firstly and then decreases with the decrease of equivalent ratio.

参考文献

[1] 韩韫, 熊良铨, 白生军,等. 二甲醚作为超清洁燃料的应用 [J]. 新疆石油科技, 2004(4):68-69.
(Han Yun, Xiong Liangquan, Bai Shengjun.et al. The application of dimethyl ether as super clean fuel[J]. Xinjiang Petroleum Science and Technology. 2004(4):68-69.)
[2] Fleisch T. A New Clean Diesel Technology: Demonstration of ULEV Emissions on a Navistar Diesel Engine Fueled with Dimethyl Ether. (1995)SAE 950061.
[3] Fleisch T H, Basu A, Gradassi M J, et al. Dimethyl ether: A fuel for the 21st century[J]. Studies in Surface Science & Catalysis, 1997, 107(6):117-125.
[4] Semelsberger T A, Borup R L, Greene H L. Dimethyl ether (DME) as an alternative fuel[J]. Journal of Power Sources, 2006, 156(2):497-511.
[5] 解东来, 温明霞. 也谈二甲醚作为民用燃料的应用[J]. 化工进展, 2012(3):703-704.
(Xie Donglai, Wen Mingxia.Application of dimethyl ether as civil fuel [J].Chemical Industry and Engineering Progress. 2012(3):703-704.)
[6] 张绍伟. 二甲醚用作民用燃料的发展前景和面临问题[J]. 煤气与热力, 2011, 31(9):19-22.
Zhang Shaowei. Development prospect and problems in use of dimethyl ether asdomestic fuel[J].Gas & Heat. 2011, 31(9):19-22. (in Chinese)
[7] Anggarani R, Wibowo C S, Rulianto D. Application of Dimethyl Ether as LPG Substitution for Household Stove[J]. Energy Procedia, 2014, 47:227-234.
[8] 韩德奇、张晓霞等.柴油替代燃料二甲醚的应用开发和发展概况.江苏化工,2003(3);1-3.
(Han Deqi, Zhang Xiaoxia, et al. The application and development of dimethyl ether asdiesel alternative fuel[J].Jiangsu Chemical Industry. 2003(3);1-3.)
[9] Su H P, Chang S L. Applicability of dimethyl ether (DME) in a compression ignition engine as an alternative fuel[J]. Energy Conversion & Management, 2014, 86(10):848-863.
[10] Thomas G, Feng B, Veeraragavan A, et al. Emissions from DME combustion in diesel engines and their implications on meeting future emission norms: A review[J]. Fuel Processing Technology, 2014, 119(119):286-304.
[11] 郑尊清, 尧命发, 汪洋,等. 二甲醚均质压燃燃烧过程的试验研究[J]. 燃烧科学与技术, 2003, 9(6):561-565.
(Zheng Zunqing, Yao Mingfa, Wang Yang, et al.Experiment study of HCCI combustion prpcess fueled with DME[J].Journal of Combustion Science and Technology. 2003, 9(6):561-565.)
[12] 王贺武, 周龙保, 蒋德明,等. 直喷式柴油机燃用二甲醚排放特性的研究[J]. 内燃机学报, 2000, 18(1):6-10.
(Wang Hewu, Zhou Longbao, Jiang Deming et al. Study on emission characteristics of direct injection diesel engine fueled with dimethyl ether [J].Transactions of CSICE, 2000, 18(1):6-10.)
[13] 张煜盛, 郎静, 莫春兰,等. 二甲醚发动机非常规污染物排放特性研究[J]. 内燃机学报, 2008, 26(1):36-42.
(Zhang Yusheng, Lang Jing, Mo Chunlan, et al. Investigations on Unregulated Pollutants from a DME Fueled Engine. [J]. Transactions of Csice, 2008, 26(1):36-42.)
[14] 赵黛青,曾涛,蒋利桥,等.二甲醚燃烧的甲醛生成特性实验研究[J].环境工程学报, 2008(3):395-398.
(Zhao Daiqing, Zeng Tao, Jiang Liqiao , et al. Experimental study on formed characteristics of formaldehyde in DME combustion[J].Chinese Journal of Environmental Engineering.2008(3):395-398.)
[15] Rodriguez A, Frottier O, Herbinet O, et al. Experimental and Modeling Investigation of the Low-Temperature Oxidation of Dimethyl Ether[J]. Journal of Physical Chemistry A, 2015, 119(28):7905-23.
[16] Oshibe H, Nakamura H, Tezuka T, et al. Stabilized three-stage oxidation of DME/air mixture in a micro flow reactor with a controlled temperature profile[J]. Combustion & Flame, 2010, 157(8):1572-1580.
[17] Ju Y, Reuter C B, Sang H W.Numerical simulations of premixed cool flames of dimethyl ether/oxygen mixtures [J]. Combustion & Flame, 2015, 162(10):3580-3588.
[18] Jian G, Nakamura Y. Low-temperature ignition of dimethyl ether: transition from cool flame to hot flame promoted by decomposition of HPMF (HO2CH2OCHO)[J]. Combustion & Flame, 2016, 165:68–82.
[19] Hidaka Y, Sato K, Yamane M. High-temperature pyrolysis of dimethyl ether in shock waves[J]. Combustion and Flame, 2000, 123(1):1-22.
[20] Guo H, Sun W, Haas F M, et al. Measurements of H2O2, in low temperature dimethyl ether oxidation[J]. Proceedings of the Combustion Institute, 2013, 34(1):573-581.
[21] Cueean H J.Fischer S L.Dryer F L.lThe reaction kinetics of dimethyl ether. II: Low-temperatureoxidation in flow reactors.Int.J.Chem.Kinetics.2000,32(12):741-759.
[22] Stoehr K D, Peters N, Beeckmann J. Low temperature oscillations of DME combustion in a jet-stirred reactor[J]. Proceedings of the Combustion Institute, 2015,35(3):3601-3607.
[23] Gaydn A G. The Spectroscopy of Flames [M].London:Chapman and Hall,1974.
[24] Gaydon A G, Wolfhard H G, Fristrom R M. Flames: Their Structure, Radiation and Temperature[M]. John Wiley, 1979.
[25] Liu I, Cant N W, Bromly J H, et al. Formate species in the low-temperature oxidation of dimethyl ether.[J]. Chemosphere, 2001, 42(5–7):583-589.
[26] Francisco J S. On the competition between hydrogen abstraction versus C-O bond fission in initiating dimethyl ether combustion. Combustion and Flame, 1999, 118(s 1–2):312-316.
[27] Burke U, Somers K P, O’Toole P, et al. An ignition delay and kinetic modeling study of methane, dimethyl ether, and their mixtures at high pressures[J]. Combustion & Flame, 2015, 162(2):315-330.
[28] Jiajue C, Hongyi H, Dibble T S, et al. Rate constants and kinetic isotope effects for methoxy radical reacting with NO2 and O2. Journal of Physical Chemistry A, 2014, 118(20):3552-3563.
[29] Hongyi H, Dibble T S. Quantum chemistry, reaction kinetics, and tunneling effects in the reaction of methoxy radicals with O2. J.phys.chem.a, 2013, 117(51):14230-14242.
[30] Japar S M, Wallington T J, Richert J F O, et al. The atmospheric chemistry of Oxygenated fuel additives: t-Butyl alcohol, dimethyl ether, and methylt-butyl ether[J]. International Journal of Chemical Kinetics, 1990, 22(12):1257-1269.
[31] Black G, Curran H J, Pichon S, et al. Bio-butanol: Combustion properties and detailed chemical kinetic model[J]. Combustion & Flame, 2010, 157(2):363-373.
[32] Xu S, Zhu R S, Lin M C. Ab initio study of the OH + CH 2 O reaction: The effect of the OH??OCH 2, complex on the H-abstraction kinetics[J]. International Journal of Chemical Kinetics, 2006, 38(5):322-326.
[33] Curran H J, Pitz W J, Westbrook C K, et al. A wide range modeling study of dimethyl ether oxidation[J]. International Journal of Chemical Kinetics, 1998, 30(3):229-241.
[34] 郎静, 张煜盛. 论DME燃烧与微量污染物生成机理研究[J]. 内燃机工程, 2005,26(6):30-34.
(Lang Jing, Zhang Yusheng. Investigations of DME combustion and tiny pollutant formation mechanism [J].Chinese Internal Combustion Engine Engineering.2005, 26(6):30-34.)
[35]Wang Z, Zhang X, Xing L, et al. Experimental and kinetic modeling study of the low- and intermediate-temperature oxidation of dimethyl ether[J]. Combustion & Flame, 2015, 162(4):1113-1125.
[36]Zhenwei Zhao, Marcos Chaos, Andrei Kazakov ?, et al. Thermal decomposition reaction and a comprehensive kinetic model of dimethyl ether[J]. International Journal of Chemical Kinetics, 2008, 40(1):1–18.
[37]Jr W C G. Combustion Chemistry[M]. Springer US, 1984.
[38]Tsang W, Hampson R F. Chemical Kinetic Data Base for Combustion Chemistry. Part I. Methane and Related Compounds[J]. Journal of Physical & Chemical Reference Data, 1986, 15(3):1087-1279.
[39] Daly C A, Simmie J M, Würmel J, et al. Burning velocities of dimethyl ether and air[J]. Combustion & Flame, 2001, 125(4):1329-1340.
[40] 曾小军, 赵黛青, 汪小憨,等. 二甲醚低温氧化及甲醛生成特性实验研究[J]. 工程热物理学报, 2011, V32(1):149-151.
(Zeng Xiaojun, Zhao Daiqing, Wang Xiaohan et al. Experimental study on formaldehyed formation and oxidation characteristics of dimethyl ether in low temperature[J]. Journal of Engineering Thermophysics. 2011, V32(1):149-151.)
文章导航

/