Influence of using emulsified diesel fuel on the performance and pollutants emitted from diesel engine
2013
Alahmer, Ali
This manuscript investigates the effect of emulsified diesel fuel on the engine performance and on the main pollutant emissions for a water-cooled, four stroke, four cylinders, and direct injection diesel engine. Emulsified diesel fuels with water content of range 0–30% by volume were used. The experiments were conducted in the speed range from 1000 to 3000rpm. It was found that, in general, the using emulsified fuel improves the engine performance and reduces emissions. While the brake specific fuel consumption (BSFC) has a minimum value at 5% water content and 2000rpm. The torque (T), the break mean effective pressure (BMEP) and thermal efficiency (ηₜₕ) are found to have maximum values under these conditions. The emission CO₂ was found to increase with engine speed and to decrease with water content. NOₓ produced from emulsified fuel is significantly less than that produced from pure diesel under the same conditions. And as the percentage of water content in the emulsion increases, the emitted amount of oxygen also increases.
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