SHANGHAI JIAO TONG UNIVERSITY
学士学位论文
THESIS OF BACHELOR
论文题目：
学生姓名:
学生学号:
专 业:
指导教师:
学院(系):
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摘要
摘要正文五号宋体，首行缩进二个字符，单倍行距。300-500字。质充量压缩着火(HCCI)燃烧，作为一种能有效实现高效低污染的燃烧方式，能够使发动机同时保持较高的燃油经济性和动力性能，而且能有效降低发动机的NOx和碳烟排放。此外HCCI燃烧的一个显著特点是燃料的着火时刻和燃烧过程主要受化学动力学控制，基于这个特点，发动机结构参数和工况的改变将显著地影响着HCCI发动机的着火和燃烧过程。
关键词：五号宋体，逗号分开，最后一个关键字后面无标点符号
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Paper Name XXX
ABSTRACT
HCCI (Homogenous Charge Compression Ignition) combustion has advantages in terms of efficiency and reduced emission. HCCI combustion can not only ensure both the high economic and dynamic quality of the engine, but also efficiently reduce the NOx and smoke emission. Moreover, one of the remarkable characteristics of HCCI combustion is that the ignition and combustion process are controlled by the chemical kinetics, so the HCCI ignition time can vary significantly with the changes of engine configuration parameters and operating conditions. In this work numerical scheme for the ignition and combustion process of DME homogeneous charge compression ignition is studied. The detailed reaction mechanism of DME proposed by American Lawrence Livermore National Laboratory (LLNL) and the HCT chemical kinetics code developed by LLNL are used to investigate the ignition and combustion processes of an HCCI engine fueled with DME. The new kinetic mechanism for DME consists of 79 species and 399 reactions. To consider the effect of wall heat transfer, a wall heat transfer model is added into the HCT code. By this method, the effects of the compression ratio, the fuel-air equivalence ratio, the intake charge heating, the engine speed, EGR and fuel additive on the HCCI ignition and combustion are studied. The results show that the HCCI combustion fueled with DME consists of a low temperature reaction heat release period and a high temperature reaction heat release period. It is also founded that increasing the compression ration, the equivalence ratio, the intake charge temperature and the content of H2O2, H2 or CO cause advanced ignition timing. Increasing the engine speed, adoption of cold EGR and the content of CH4 or CH3OH will delay the ignition timing.
Key Words: sjtu, uiuc
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目录
第一章 绪论 -------------------------------------------------------------------------------------------------------- 1
1.1 二级标题，格式标题2 ------------------------------------------------------------------------------ 1
1.1.1 三级标题 -------------------------------------------------------------------------------------- 1
第二章 格式标题1 ---------------------------------------------------------------------错误!未定义书签。
2.1 二级标题 ------------------------------------------------------------------------------------------------ 2
2.1.1 三级标题 -------------------------------------------------------------------------------------- 2
2.2 插入标题2 --------------------------------------------------------------------------------------------- 2
2.2.1 插入标题3 ------------------------------------------------------------------------------------ 2
第三章 结论 -------------------------------------------------------------------------------------------------------- 3 参考文献 ------------------------------------------------------------------------------------------------------------ 4 谢辞 ------------------------------------------------------------------------------------------------------------------ 5
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第一章 绪论
一级标题三号黑体居中加粗，上下各空一行。输入时直接点标题1就行了。正文: 中文为五号宋体，英文为五号Times New Roman，首行缩进二个字符，单倍行距。注意参考文献的格式用插入尾注，手动添加中括号，以上标的形式标注。不信你双击后面这个一[1]。
1.1 二级标题，格式标题2
二级标题序数，二级标题为黑体四号，单倍行距，首行缩进2字符。输入时直接点标题2就行了。
1.1.1 三级标题
第三级和第四级标题小四宋体书写标题，缩进值2字符。对总项包括的分项采用(1)、
(2)、(3)…的序号：
(1)第一项
....................................................................................
(2)第二项
。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。
(3)第三项
。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。
第 1 页 共 5 页
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第二章 正文
2.1 二级标题
正文内容
2.1.1 三级标题
正文内容
2.2 插入标题2
2.2.1 插入标题3
公式表格图表什么的自行百度吧，我就不做了。
2.3 本章小结
插入分页符可以直接另起一页写下一章。
第 2 页 共 5 页
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第三章 结论
每一章大标题三号黑体居中加粗，上下各空一行。
第 3 页 共 5 页
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参考文献
[1] 蒋有绪,水,马娟,等. 中国森林群落分类及其群落学特征[M]. 北京:科学出版
社,1998:11-12.
第 4 页 共 5 页
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谢辞
先谢郭嘉。
第 5 页 共 5 页
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ENGLISH BIG ABSTRACT
Need many words.
第 1 页 共 1 页