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[1]张 韦,常少月,陈朝辉,等.DNH三燃料简化化学动力学机理的构建与验证[J].燃烧科学与技术,2017,(04):331-338.[doi:DOI 10.11715/rskxjs.R201611010]
 Zhang Wei,Chang Shaoyue,Chen Zhaohui,et al.Construction and Validation of a Reduced Chemical Kinetics Mechanismfor Diesel/Natural Gas/Hydrogen Engine Simulations[J].Journal of Combustion Science and Technology,2017,(04):331-338.[doi:DOI 10.11715/rskxjs.R201611010]
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DNH三燃料简化化学动力学机理的构建与验证()
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《燃烧科学与技术》[ISSN:1006-8740/CN:12-1240/TK]

卷:
期数:
2017年04
页码:
331-338
栏目:
出版日期:
2017-08-15

文章信息/Info

Title:
Construction and Validation of a Reduced Chemical Kinetics Mechanism for Diesel/Natural Gas/Hydrogen Engine Simulations
作者:
张 韦常少月陈朝辉陈贵升
昆明理工大学云南省内燃机重点实验室,昆明 650500
Author(s):
Zhang WeiChang ShaoyueChen ZhaohuiChen Guisheng
Yunnan Key Laboratory of Internal Combustion Engine,Kunming University of Science and Technology, Kunming 650500,China
关键词:
天然气柴油氢气DNH 机理化学动力学
Keywords:
natural gasdieselhydrogenDNH mechanismchemical kinetics
分类号:
TK421
DOI:
DOI 10.11715/rskxjs.R201611010
文献标志码:
A
摘要:
将简化天然气GRI 3.0 机理与柴油替代机理95/5,vv、氢气详细机理以及污染物生成模型组合,得到含 79 种组分、244 步反应的DNH 三燃料机理,通过敏感性分析、重要组分分析,调整化学动力学参数,对DNH 机理进行验证.结果表明:DNH 机理在当量比0.3~1.0 内可准确预测单燃料的滞燃期、重要产物、污染物生成 过程;通过CFD 耦合DNH 机理,在柴油、柴油/天然气和柴油/天然气/氢气三种模式下,模拟值与试验值一致性 较好,表明DNH 模型可满足发动机缸内燃烧模拟的需求.
Abstract:
By combining GRI-mech 3.0 reduced mechanism,diesel surrogate 95/5,vv mechanism,hydrogen mechanism and soot generation mechanism,DNH mechanism which consisted of 79 species and 244 reactions was proposed.Then,sensitivity analysis and analysis of important components were made for the adjustment of Arrhenius rate constants in DNH mechanism.DNH mechanism was validated and the results indicated that predictions for ignition delay,intermediates and pollutant emissions were in agreement with single detail mechanism respectively with the equivalent ratio from 0.3 to 1.0.By coupling CFD model with DNH mechanism,the simulation results agreed well with the experimental data under neat diesel,diesel/natural gas and diesel/natural gas/hydrogen fueling conditions,which revealed that the DNH model can meet the needs of combustion simulation in the engine cylinder.

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备注/Memo

备注/Memo:
收稿日期:2016-12-30. 基金项目:国家自然科学基金资助项目(51665023,51666007). 作者简介:张 韦(1979— ),男,博士,副教授. 通讯作者:张 韦,koko_575@aliyun.com.
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