EVALUATION OF PARTICLES EMITTED BY A DIESEL ENGINE USING BIODIESEL AND ADDITIVES

One of the alternatives for reducing particles emitted when burning fuel in adiesel engine is fuel additives. This study evaluated the number and mass of particlesemitted by burning a mixture of 89% S10 diesel and 11% biodiesel, compared to thesame fuel using an organic additive. The concentration of the additive used was 10ppm, supplied in a diesel engine with 17.6 kW (24 hp) and 70 N.m of torque. Particleassessment was performed using a TSI NanoScam 3910 spectrometer, and thedilution ratio was 24:1. The evaluation demonstrated that the additive was effective inreducing the number and mass of particles for the tested condition by 36% and 49%respectively. This behavior can be justified due to the higher oxygen content presentin the additive, which enabled the oxidation and reduction of particles.