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Emissions and Performance of a Single Cylinder CFR Cetane Engine Using Biodiesel-Water Emulsion
Emulsification technique is one of the most important methods to the reduction of pollutants from diesel engine. In this research, a single cylinder diesel engine was operated with water in canola biodiesel as fuel and the effect of water emulsification on the engine performance and emissions were investigated. Emulsified biodiesel fuels of 3.5 and 10 water/water-biodiesel mixture fuel ratios by volume were used in a light-duty diesel engine, operating at various engine speeds. The results show that the brake engine torque, the brake engine power and the brake thermal efficiency decrease as the water percentage in the emulsion increases but the brake specific fuel consumption (BSFC) increases as the percentage of water increases in the emulsion fuel. In addition, carbon monoxide (CO) and hydrocarbons (HC) increase as the percentage of the water increases in the emulsion fuel. However, exhaust gas temperature, nitrogen oxides (NOx) and smoke emissions decrease as the percentage of water increases in the emulsion fuel.
Keywords
Biodiesel-Water Emulsion, Diesel Engine, Specific Fuel Consumption, Oxides of Nitrogen.
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