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Performance and Emission Formation Evaluation of a Diesel-Fueled, Free-Piston Engine Using CFD
Published May 01, 2006 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Conference
The KIVA-3V code coupled with detailed chemistry was used to evaluate a two-stroke, compression-ignited, free-piston engine designed for electric power generation. A comprehensive chemical kinetics mechanism for a diesel oil surrogate was used to simulate efficient low-emission engine operation in the conventional diesel and HCCI-like combustion modes. The formation and destruction of chemical species in the cycle and the effects of varying the start of injection on the exhaust mixture composition and combustion/indicated efficiencies have been investigated. In order to help analyze the emission a special approach based on the parametric temperature-equivalence ratio maps has been used.