Chemical Kinetic Models for HCCI and Diesel Combustion

Pitz, W J ; Westbook, C K ; Mehl, M

关键词: ALKANES;    ALKENES;    AROMATICS;    COMBUSTION;    DIESEL ENGINES;    DIESEL FUELS;    EFFICIENCY;    ENGINES;    ESTERS;    GASOLINE;    HYDROCARBONS;    KINETICS;    MIXTURES;   

DOI  :  10.2172/945558
RP-ID  :  LLNL-TR-408325
PID  :  OSTI ID: 945558
Others  :  TRN: US200904%%85

美国|英语

来源: SciTech Connect

【 摘 要 】

Hydrocarbon fuels for advanced combustion engines consist of complex mixtures of hundreds or even thousands of different components. These components can be grouped into a number of chemically distinct classes, consisting of n-paraffins, branched paraffins, cyclic paraffins, olefins, oxygenates, and aromatics. Biodiesel contains its own unique chemical class called methyl esters. The fractional amounts of these chemical classes are quite different in gasoline, diesel fuel, oil-sand derived fuels and bio-derived fuels, which contributes to the very different combustion characteristics of each of these types of combustion systems. The objectives of this project are: (1) Develop detailed chemical kinetic models for fuel components used in surrogate fuels for diesel and HCCI engines; (2) Develop surrogate fuel models to represent real fuels and model low temperature combustion strategies in HCCI and diesel engines that lead to low emissions and high efficiency; and (3) Characterize the role of fuel composition on low temperature combustion modes of advanced combustion engines.