Abstract
Toward the commercial production of gasoline HCCI engines, it is important to understand the effect of fuel characteristics on HCCI and SI combustion. The model fuels used in this study have the same octane number but consist of different components. Using these model fuels, the effect of fuel components against two Auto-Ignition phenomena, which are 1) HCCI combustion and 2) knocking in SI combustion, was analyzed with experimental approaches. As a result of the analysis, an experimental equation was proposed for the HCCI timing of the multi component fuels, and it showed good agreements against gasoline fueled HCCI timing.
