[1]曾文,解茂昭,马洪安.异辛烷HCCI燃烧下多环芳烃数值模拟[J].深圳大学学报理工版,2010,27(3):354-360.
 ZENG Wen,XIE Mao-zhao,and MA Hong-an.Simulation of polycyclic and aromatic hydrocarbons formation in isooctane HCCI combustion[J].Journal of Shenzhen University Science and Engineering,2010,27(3):354-360.
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异辛烷HCCI燃烧下多环芳烃数值模拟()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第27卷
期数:
2010年3期
页码:
354-360
栏目:
环境与能源
出版日期:
2010-07-30

文章信息/Info

Title:
Simulation of polycyclic and aromatic hydrocarbons formation in isooctane HCCI combustion
文章编号:
1000-2618(2010)03-0354-07
作者:
曾文1解茂昭2马洪安1
1) 沈阳航空航天大学动力与能源工程学院,沈阳110136
2) 大连理工大学能源与动力工程学院,大连116024
Author(s):
ZENG Wen1XIE Mao-zhao1and MA Hong-an1
1)School of Engine and Energy Engineering, Shenyang Aerospace University, Shenyang 110136, P.R.China
2)School of Energy and Power Engineering, DalianUniversity of Technology, Dalian 116024, P.R.China
关键词:
工程热物理异辛烷均匀充量压缩点火多环芳烃数值模拟
Keywords:
engineering thermophysicsisooctanehomogeneous charge compression ignitionpolycyclic and aromatic hydrocarbonsimulation
分类号:
TK 401
文献标志码:
A
摘要:
通过修改化学动力学软件CHEMKIN Ⅲ,建立异辛烷均匀充量压缩点火(homogeneous charge compression ignition,HCCI)燃烧下排放特性数值模拟的多区模型.分析异辛烷HCCI燃烧下芳香烃(苯)与多环芳烃(萘、菲及芘)的生成及演变规律.采用异辛烷的燃烧与分解、多环芳烃生成的反应机理(包括115种组分,557个基元反应)进行计算.结果表明,碳氢排放主要来源于缝隙区及边界层区,而CO排放主要来源于边界层区;在各区达到着火时刻时,各区的苯、萘、菲及芘质量分数呈现先急升,再急降为一稳定值;同时,在这4种芳香烃排放中,苯的质量分数最高,萘其次,芘的排放基本为零.
Abstract:
By amending the CHEMKIN III chemical kinetics package,a multi-zone model was built based on the emission characteristics of isooctane homogeneous charge compression ignition(HCCI) combustion.The formation and evolvement mechanisms of the aromatic (benzene) and polycyclic hydrocarbons (including naphthalene,phenanthrene and pyrene) in isooctane HCCI combustion were simulated in this model.The detailed reaction mechanisms of isooctane combustion and formation of the polycyclic aromatic hydrocarbons were adopted (including 115 species and 557 reactions).The results show the crevice zone and the boundary layer are the main source of the HC emission,while the CO emission is mainly from the boundary layer.At ignition timing,the mass fractions of benzene(A1),naphthalene(A2),phenanthrene(A3) rapidly increases to a peak value,and subsequently,rapidly reducing to a steady value.However,the mass fraction of pyrene(A4) is reduced to zero after reaching the peak value.Among these four aromatic and polycyclic hydrocarbons,the emission of A1 is the highest,A2,the next,and A4,almost zero.

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备注/Memo

备注/Memo:
收稿日期:2010-03-09;修回日期:2010-05-26
基金项目:国家重点基础研究发展规划项目(2007CB210002);国家自然科学基金资助项目(50906059)
作者简介:曾文(1977-),男(汉),湖南省沅江人,沈阳航空航天大学副教授、博士.E-mail:zengwen928@sohu.com
更新日期/Last Update: 2010-07-30