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首页> 外文期刊>Renewable energy >Numerical investigation of hydrogen addition effects on methanol-air mixtures combustion in premixed laminar flames under lean burn conditions
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Numerical investigation of hydrogen addition effects on methanol-air mixtures combustion in premixed laminar flames under lean burn conditions

机译：贫燃条件下氢气在预混合层流火焰中加氢对甲醇-空气混合物燃烧影响的数值研究

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摘要

Based on the methanol oxidation and NOx reaction mechanisms, we explored the effect of hydrogen addition on the methanol oxidation reaction mechanism. We used the PREMIX subroutine in Chemkin chemical reaction dynamics analysis software, and studied the effect of hydrogen addition numerically on the main intermediate and final products in methanol premixed laminar flames under lean burn and given initial conditions such as temperature and pressure. The combustion and emission parameters in the methanol engine were researched for the addition of hydrogen in different volume ratios. The simulation results show that hydrogen addition can accelerate the methanol oxidation reaction rate and that the reaction rate increased with increase in hydrogen addition in methanol premixed laminar flames. H, O, and OH radicals can accelerate the chemical reaction rate in the flame. The maximum mole fraction of CH2O decreases with increase in hydrogen addition, which shows that hydrogen addition can reduce CH2O and has a positive influence on the environment. Temperature has little effect on NO formation in the methanol-hydrogen premixed laminar flames; the mole fraction of NO decreases with increase in hydrogen addition. (C) 2018 Elsevier Ltd. All rights reserved.
机译：基于甲醇氧化和NOx反应机理，我们探讨了加氢对甲醇氧化反应机理的影响。我们在Chemkin化学反应动力学分析软件中使用了PREMIX子程序，并在稀薄燃烧和给定初始条件（例如温度和压力）下，数值研究了加氢对甲醇预混层流火焰中主要中间产物和最终产物的影响。对甲醇发动机的燃烧和排放参数进行了研究，以添加不同体积比的氢气。模拟结果表明，在甲醇预混层流火焰中，加氢可加快甲醇氧化反应速率，反应速率随加氢量的增加而增加。 H，O和OH自由基可加速火焰中的化学反应速率。 CH2O的最大摩尔分数随加氢量的增加而降低，这表明加氢可以减少CH2O并对环境产生积极影响。温度对甲醇-氢预混合层流火焰中NO的形成影响很小。 NO的摩尔分数随着氢添加的增加而降低。 （C）2018 Elsevier Ltd.保留所有权利。

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  • 来源
    《Renewable energy》 |2018年第11期|56-63|共8页
  • 作者

    Gong Changming; Li Zhaohui; Li Dong; Liu Jiajun; Si Xiankai; Yu Jiawei; Huang Wei; Liu Fenghua; Han Yongqiang;

  • 作者单位

    Jilin Univ, State Key Lab Automot Simulat & Control, Changchun 130022, Peoples R China;

    Jilin Univ, State Key Lab Automot Simulat & Control, Changchun 130022, Peoples R China;

    Bosch Automot Diesel Syst Co Ltd, Wuxi 214028, Peoples R China;

    Jilin Univ, State Key Lab Automot Simulat & Control, Changchun 130022, Peoples R China;

    Dalian Minzu Univ, Coll Mech & Elect Engn, Dalian 116600, Peoples R China;

    Dalian Minzu Univ, Coll Mech & Elect Engn, Dalian 116600, Peoples R China;

    Dalian Minzu Univ, Coll Mech & Elect Engn, Dalian 116600, Peoples R China;

    Dalian Minzu Univ, Coll Mech & Elect Engn, Dalian 116600, Peoples R China;

    Jilin Univ, State Key Lab Automot Simulat & Control, Changchun 130022, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Methanol; Hydrogen addition; Combustion; Premixed laminar flame; Lean burn; Chemical kinetics;

    机译：甲醇;加氢;燃烧;预混层流火焰;稀燃;化学动力学;

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