The Study of Particulate Emissions of Engine Fuelled with Biodiesel-Diesel Blends Using Thermo-gravimetric Analysis

Particulate emissions of engine fuelled different proportions of Pistacia chinensis Bunge seed biodiesel-diesel blends were collected under different fuel supplying advance dangles and different operating conditions. The change of volatile organic fractions in particulate emissions was analyzed using Thermo-gravimetric analytical instrument when increasing temperature. The results showed that under the tested conditions, compared to the proportions of biodies eldiesel blends, the change of fuel supplying advanced angle had little influence on the amount of volatile organic fraction in the particulate emissions. The volatile organic fraction in the particulate emissions increased with the increase of the proportions of biodiesel in the blends, volatile organic fractions peaked at the evaporation temperature of 150~180°C, and with the percentage of biodiesel increases, the volatile organic fractions were more concentrated in the temperature range with the increase of percentage of biodiesel.