Study on the effect of biofuel properties on soot emissions of high-speed diesel engines using the simulation method

Biofuels have more oxygen and less sulfur and carbon content than traditional diesel fuel, so soot emissions will be reduced when used for engines. Biofuels can be original vegetable oils, vegetable oils, or animal fats converted into biodiesel. Biofuels are environmentally friendly and renewable, so they are encouraged to be utilized. This study used a mixture of diesel-coconut oil and biodiesel B10 produced from animal fats as fuel for high-speed diesel engines. The simulation results using Kiva-3V software for the Yanmar 4-cylinder diesel engine show that the mixture of diesel-coconut oil (C10) at the ratio of 10% coconut oil and 90% diesel oil gives soot emissions (1.72x10-4g) close to biodiesel B10 fuel (10% biodiesel B100) at 1.63x10-4g and both lower than diesel fuel (2.08x10-4g). The research findings provide a foundation for correctly adjusting the diesel engine's fuel injection system when utilizing biofuel.