Characteristics of particulate emissions from a diesel generator fueled with varying blends of biodiesel and fossil diesel.
This study investigated the particulate matter (PM), particle-bound carbons, and polycyclic aromatic hydrocarbons (PAHs) emitted from a diesel-engine generator fuelled with blends of pure fossil diesel oil (D100) and varying percentages of waste-edible-oil biodiesel (W10, 10 vol %; W20, 20 vol %; W30, 30 vol %; and W50, 50 vol %) under generator loads of 0, 1.5, and 3 kW. On average, the PM emission factors of all blends was 30.5 % (range, 13.7-52.3 %) lower than that of D100 under the tested loads. Substituting pure fossil diesel oil with varying percentages of waste-edible-oil biodiesel reduced emissions of particle-bound total carbon (TC) and elemental carbon (EC). The W20 blend had the lowest particle-bound organic carbon (OC) emissions. Notably, W10, W20, and W30 also had lower Total-PAH emissions and lower total equivalent toxicity (Total-BaP(eq)) compared to D100. Additionally, the brake-specific fuel consumption of the generator correlated positively with the ratio of waste-edible-oil biodiesel to pure fossil diesel. However, generator energy efficiency correlated negatively with the ratio of waste-edible-oil biodiesel to pure fossil diesel.
Department of Environmental Engineering and Science, National Pingtung University of Science and Technology, PingTung, Taiwan.
Jen-Hsiung
JH
Tsai
Shui-Jen
SJ
Chen
Kuo-Lin
KL
Huang
Wen-Jhy
WJ
Lee
Wen-Chien
WC
Kuo
Wen-Yinn
WY
Lin
D000393:Air Pollutants / Q000032:analysis* / Q000737:chemistry; D056804:Biofuels / Q000032:analysis; D002244:Carbon / Q000032:analysis* / Q000737:chemistry; D004784:Environmental Monitoring; D005742:Gasoline / Q000032:analysis*; D052638:Particulate Matter / Q000032:analysis*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis / Q000737:chemistry
D000393:Air Pollutants; D056804:Biofuels; D005742:Gasoline; D052638:Particulate Matter; D011084:Polycyclic Aromatic Hydrocarbons; D002244:Carbon