Browse Publications Technical Papers 2002-01-2720
2002-10-21

Use of Diethyl Ether Along with Water-Diesel Emulsion in a Di Diesel Engine 2002-01-2720

Experimental investigations were carried out to assess the effect of using diethyl ether to improve performance & emissions of a DI diesel engine running on water-diesel emulsion. The water-diesel ratio was 0.4:1 (by weight) and diethyl ether percentages of 5, 10 & 15 by weight were tried. The optimum quantity of diethyl ether was chosen as 10% based on emissions. It was found that diethyl ether, when added to water-diesel emulsion can significantly lower NOx and smoke levels without adverse effect on brake thermal efficiency. High HC & CO levels which are problems with water-diesel emulsions, can be significantly lowered with the addition of diethyl ether particularly at high outputs. Ignition delay and maximum rate of pressure rise at full load are also reduced. Even at part load the addition of the diethyl ether can improve the performance as compared to neat water-diesel emulsion without any adverse effect on NOx emission. However, the HC and CO levels are still higher than diesel operation. In general, it is concluded that diethyl ether can be used to solve some of the problems associated with the use of water diesel emulsions in a diesel engine

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