柴油发动机燃用生物柴油的燃烧特性与排放特性研究-载运工具运用工程专业论文 word格式.docx

摘要
摘要
世界汽车工业的快速发展和能源短缺的矛盾日益明显,为了实现可持续发展, 国际社会已经越来越重视开发汽车新能源及代用燃料。论文结合重庆市教委自然科学基金项目"柴油机燃用生物柴油…柴油混合燃料的燃烧特性与排放特性研究",提出了柴油发动机燃用生物柴油的燃烧特性与排放特性研究。
本文在建立了生物柴油燃料库和乙醉燃料库的基础上,利用发动机性能仿真软件 GT-POWER ,建立了柴油机模型,进行了柴油机燃用生物柴油混合燃料的仿真和对比性试验,分析研究了柴油机的燃烧特性、动力性、经济性和排放特性。论文完成的主要内容包括:
①分析了生物柴油的国内外发展现状,简述了生物柴油的生产原料和制备方法,分析了生物柴油的理化特性。
@以 GT-POWER 仿真分析软件为基础,建立了生物柴油燃料库和乙醇燃料库, 选择以"Jet" 可预测燃烧模型为柴油发动机模型,并验证了模型的可靠性。
@利用发功机模型仿真分析了发动机燃用生物柴油泪合燃料的燃烧特性、动力性、经济性和排放特性。
@以发动机的动力性、经济性和排放性为优化目标,应用均匀设计试验原理, 综合考虑实际应用中的转速和负荷等影响因素,对生物柴油一乙醇一柴油混合燃料进行了优化设计,确定了其最佳掺混比例。
@分析研究了压缩比、喷油提前角对柴油机燃用生物柴油的影响,提出了以动力性、经济性和排放性为优化目标的发动机优化控制方案。
关键词 z 生物柴油,乙醉,柴油机,仿真分析
ABSTRACT 11
ABSTRACT
Today,the ∞nflict between rushing development of the world automobile industry and energy shortage has been growing up to be an outstanding condition. It is ing important ,in global world ,to develop new energy and alternative fuel for automobiles to achieve sustainable development. In this paper,research bustion and emission
characteristics of diesel engine with biodiesel is proposed based on one of the research projects su时ected to Natural Science Fund of Chongqing mission , which studies bustion and emission properties of biodiesel-diesel mixture in diesel engine.
In this paper,after the fuel depot of biodiesel and ethanol are established the diesel engine model is constituted based on the simulation software G下POWER. 丁he
combustion ,power,economy and emission characteristics of diesel engine are analyzed and researched according on the ∞mparison of the mixture burning simulation with that
of the main contents plished in this paper are following as:
①Analyzing development of biodiesel at home and abroad,introducing raw materials for biodiesel producing and the manufacturing method of biodiesel briefly, and analyzing the physical & chemical properties.
②Establishing fuel depot of biodiesel and ethanol with GT-POWER and selecting "Jet" bustion model to verify the reliability of the model.
***@Researching and analyzing th