Natural gas pre-mixture is ignited by a small amount of pilot fuel in the dual fuel engine. In this paper, numerical studies were carried out to investigate the combustion and exhaust gas emissions formation process of this engine type by using a multi dimensional model combined with the detailed chemical kinetics including 57 chemical species and 290 elementary reactions. In calculation, the effect of the pre-mixture concentration on combustion was examined. The result indicated that the increased concentration of natural gas could improve the burning fraction and THC, CO emissions due to the increased pre-mixture consumption rate and the cylinders gas temperature.
|ジャーナル||SAE Technical Papers|
|出版ステータス||Published - 2003 1月 1|
|イベント||2003 JSAE/SAE International Spring Fuels and Lubricants Meeting - Yokohama, Japan|
継続期間: 2003 5月 19 → 2003 5月 22
ASJC Scopus subject areas