| 甲醇汽油发动机醇醛排放特性及其影响因素研究 |
| |
| 引用本文： | 魏衍举,刘圣华,刘方杰,朱赞,刘杰.甲醇汽油发动机醇醛排放特性及其影响因素研究[J].西安交通大学学报,2011,45(1):1-4,63. |
| |
| 作者姓名： | 魏衍举 刘圣华 刘方杰 朱赞 刘杰 |
| |
| 作者单位： | 西安交通大学能源与动力工程学院,710049,西安 |
| |
| 基金项目： | 国家自然科学基金资助项目(50876088); 西安交通大学新教师科研支持计划资助项目(0103-08141033) |
| |
| 摘 要： | 在一台JL368Q3汽油机上分别燃用汽油和M10(甲醇、汽油体积比为1∶9)甲醇汽油混合燃料,并利用气相色谱仪(氦离子化检测器)实验研究了甲醇和甲醛的排放特性及点火提前角对醇、醛排放的影响.结果表明,甲醇排放来源于燃油,其受最高燃烧温度影响较大,该排放将随着发动机转速和排气温度的升高而降低.甲醛由碳氢和甲醇在排气管中经氧化而生成,其排放量随着发动机转速和排气温度的提高而增加.汽油机的甲醛排放量随着转矩的增大先增后减,在中、高负荷时,M10发动机甲醛排放量为汽油机的1.5～4.5倍,随着发动机转速的提高,这2种负荷下的甲醛排放量差距减小.
|
| 关 键 词： | 甲醇汽油发动机 甲醛排放 点火定时 |
Influencing Factors and Characteristics of Methanol and Formaldehyde Emissions from a Methanol/Gasoline Fueled SI Engine |
| |
| WEI Yanju,LIU Shenghua,LIU Fangjie,ZHU Zan,LIU Jie.Influencing Factors and Characteristics of Methanol and Formaldehyde Emissions from a Methanol/Gasoline Fueled SI Engine[J].Journal of Xi'an Jiaotong University,2011,45(1):1-4,63. |
| |
| Authors: | WEI Yanju LIU Shenghua LIU Fangjie ZHU Zan LIU Jie |
| |
| Institution: | (School of Energy and Power Engineering,Xi′an Jiaotong University,Xi′an 710049,China) |
| |
| Abstract: | The characteristics and the effects of ignition timing on methanol(CH 3OH) and formaldehyde(HCHO) emissions of a spark ignition(SI) engine fueled with gasoline and M10(10% of methanol in blend by volume) blend respectively were experimentally investigated with gas chromatography(equipped with a helium ionization detector,HID).Results show that,CH 3OH emission was the unburnt part of fuel methanol,and it was greatly affected by the maximum in-cylinder temperature and decreased with engine speed and exhaust t... |
| |
| Keywords: | methanol-gasoline engine formaldehyde emissions ignition timing |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
