Diesel Engines에서 Cyclone 集塵이 Engine 性能에 미치는 影響 = The Influence of Cyclone Dust-collectors on the Performance of Diesel Engines

다국어 초록 (Multilingual Abstract)

It is generally acknowledged that the amount of harmful substances in the exhaust gases of diesel engines are small compared with those of gasoline engines.
On the other hand, as the exhaust gases of diesel engines contain large amount of soots or carbon particles, it is essential to reduce these amount of particles for air pollution. In this investigation the effect of cyclone for the reducing device of carbon particles in diesel engine exhaust gases was studied. A cyclone dust collector is a very simple construction without moving parts which separates fine solid particles from the turbulent rotational flow by means of the centurifugal force. The main factor of the velocity components which acts upon the pressure drop and the efficiency of the separation for the fine solid particles is a tangential velocity.
In this paper, using an analytical formula of the tangential velocity which was derived from the Navier-Stokes equations, the effect of cyclone for the eliminator and the pressure drop was studied.