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Study finds biodiesel blend reduces total particle mass in emissions but may have greater adverse health effect per mass than diesel

Green Car Congress

They found that total particulate gravimetric mass collected over the engine test cycle was more than 2 times higher for B0 than for B20 fuel. Particle number distributions aggregated over one example drive cycle indicate a unimodal B0 distribution centered at 51 nm, but a B20 distribution with a smaller diameter mode at 32.2

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Study finds PM from biodiesel blends may be 50-80% less toxic per unit PM mass than from petroleum diesel

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However, the relative toxicity of biodiesel emissions compared to petroleum diesel remains unclear. In the study, the team examined the relationships between biodiesel fuel blend, exhaust particle oxidative potential (OP), and PM composition. PM-normalized DTT Activity for biodiesel exhaust PM. to 13.6 ± 3.8 to 8.5 ± 2.8

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Birmingham study finds butanol-gasoline blend reduces GDI engine-out carbonaceous emissions; similar NOx

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A team at the University of Birmingham reports that a blend of 33% v/v of butanol in EN228 commercial gasoline containing 5% of ethanol (B33) reduces GDI (gasoline direct injection) engine-out carbonaceous emissions, while maintaining similar levels of NO x emissions when compared to standard gasoline combustion at low and medium engine loads.

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Jatropha Biodiesel-FT Blends Reduce Most Criteria Pollutants Compared to Neat FT; Higher NOx

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Blending jatropha biodiesel (JBD) with Fischer-Tropsch synthetic diesel (FT) results in lower CO, THC, smoke and PM emissions compared to neat FT, according to a study by researchers at the Norwegian University of Science and Technology (NTNU) published in the ACS journal Energy & Fuels.

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Optimizing Turbo Diesels for Emissions and Performance with 5% and 20% Biodiesel Blends

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When used in diesel engines, biodiesel usually exhibits several combustion-related advantages, including reductions in CO, UHC and PM emissions, as well as a net CO 2 reduction. The ability to produce emission and noise decreases were subsequently leveraged to produce BSFC reductions. Tags: Biodiesel Diesel Emissions Engines.

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