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Numerical parametric investigation of a gasoline fuelled partially-premixed compression-ignition engine

Author(s): Arash Nemati, Shahram Khalilarya, Samad Jafarmadar, Hassan Khatamnejhad, Vahid Fathi

Journal: International Journal of Energy and Environment
ISSN 2076-2895

Volume: 2;
Issue: 4;
Start page: 739;
Date: 2011;
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Keywords: Compression ignition engine; Gasoline fuel; Emission reduction; Combustion; Injection characteristics; Parametric study

Parametric studies of a heavy duty direct injection (DI) gasoline fueled compression ignition (CI) engine combustion are presented. Gasoline because of its higher ignition delay has much lower soot emission in comparison with diesel fuel. Using double injection strategy reduces the maximum heat release rate that leads to nitrogen oxides (NOx) emission reduction. A three dimensional computational fluid dynamics (CFD) code was employed and compared with experimental data. The model results show a good agreement with experimental data. The effect of injection characteristics such as, injection duration, main SOI timing, and nozzle hole size investigated on combustion and emissions.
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