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

Green Car Congress

Stock engine design and controls target delivering optimal performance with conventional diesel fuel; this leads, however, to suboptimal results for biodiesel in terms of the BSFC and NO x increases. However, with an energy density 13% lower than diesel (37.5

Diesel 186
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Birmingham study finds butanol-gasoline blend reduces GDI engine-out carbonaceous emissions; similar NOx

Green Car Congress

The engine was operated at stoichiometric conditions where the oxygen concentration was controlled by a Heated Exhaust Gas Oxygen (HEGO) sensor. The researchers also equipped the engine with a high-pressure external EGR system (designed and implemented by the University of Birmingham). At low loads, butanol’s physical properties (e.g.

Gasoline 170