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NOx and HC emission control using water emulsified diesel in single cylinder diesel engine

Keywords: diesel engine , water emulsified diesel , brake thermal efficiency , NOx emission , hydrocarbon emission.

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Abstract:

This paper reports on the effect of water emulsified diesel fuel combustion on brake thermal efficiency, brake specific fuel consumption and NOx and hydrocarbon emissions in a diesel engine. The experiments were conducted on a single cylinder four stroke cycle direct injection diesel engine at constant speed with a fuel injection pressure of 200 bars. Tests were conducted using commercial diesel fuel and diesel fuel with 10% and 20% water by volume. From the test results, it was found that the water emulsification has a potential to improve brake thermal efficiency and brake specific fuel consumption. The NOx and HC emissions were found to decrease with increase in water percentage in the emulsified diesel.

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