植物性廃食油のディーゼル燃料としての可能性

概要

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A feasibility study was done for the application of the waste edible oil-ethyl ester fuel to a diesel engine. We prepared the waste edible oil-ethyl ester fuel, and tried to apply it to a diesel engine. In addition, in order to reduce the exhaust emissions, we made 20vol% water-emulsion ethyl ester fuel. Density and kinematic viscosity of the waste edible oil-ethyl ester fuels were measured. It was found that the thermophysical properties of the waste edible oil-ethyl ester fuel was lower than the waste edible oil. Finally the waste edible oil-ethyl ester fuel and water-emulsion ethyl ester fuel were burned in a conventional 273-cc diesel engine. Although the specific fuel consumption was little higher, the smoke level and NOx in the exhaust gas were lower than the gas oil. Especially, the smoke level of water-emulsion ethyl ester fuel was reduced drastically, and NOx was reduced too, at the same time.
関東学院大学工学会の論文