Experimental Investigation on Emission Characteristics of Soybean Oil with Titanium Dioxide Particles
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Abstract
The objective of this study was to evaluate the emissions performance of soy-based biodiesel blends in a diesel engine, particularly focusing on the impact of titanium dioxide (TiO2) additive on emission characteristics under no-load conditions. A comparative analysis was conducted on standard diesel (B0) and a 20% soy-based biodiesel blend (B20), with further comparisons made against B20 blends containing various concentrations of TiO2 (25ppm, 50ppm and 75ppm). Engine speeds ranged from 1000 to 1800 rpm and emissions of carbon monoxide (CO), hydrocarbons (HC), carbon dioxide (CO2) and nitrogen oxides (NOx) were measured. The results indicated a reduction in CO and HC emissions when switching from B0 to B20, signifying the potential of biodiesel to lower these pollutants. The addition of TiO2 to B20 blends demonstrated a further decrease in CO and HC emissions, although this trend was not linear and varied with additive concentration.
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