earticle

영어

In order to clarify the characteristics of emulsified fuel which is blended diesel fuel and water, an experimental study was carried out using a real diesel engine. The experimental apparatus was composed of high speed diesel engine with 4 cylinder, dynamometer, main controller and smoke analyzer. As changing engine speeds, brake specific fuel consumption, engine torque, engine power, thermal efficiency and smoke emission were measured in detail. The results are as follows. 1) As engine speed was increased, engine torque for SPG emulsified fuel became higher, while that for diesel fuel became lower. 2) When engine speed was 2,200 rpm, brake horse power for SPG emulsified fuel was higher than that for diesel fuel, but the difference was very small. 3) When engine speeds were 1,500 rpm and 2,200 rpm, brake specific fuel consumption for SPG emulsified fuel increased to 17.3% and 5.7%, respectively compared with that for diesel fuel. 4) In case of 2,200 rpm, thermal efficiency for SPG emulsified fuel was 30.3%, and it was larger than that for diesel fuel. 5) Smoke concentration for SPG emulsified fuel was less than half of that for diesel fuel.