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스파크플러그를 이용한 실린더내의 이상폭발검출에 관한 연구
채재우(J.O.Chae),박재근(J.K.Park),고용수(Y.S.Ko),조민석(M.S.Cho),황재원(J.W.Whang) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.5_1
Detonation or knocking-effect. a kind of abnormal combustion, is a highly undesirable effect in the internal combustion engine. A spark plug is frequently used in detonation detection systems. The system created by the authors of the present paper is based on the effect of modulation of the breakdown voltage of the spark gap. The voltage drop between spark plug electrodes, when an electrical breakdown is initiated, depends on the local gas density. Detonation produces rapid changes in gas pressure (and. consequently, its density). A signal obtained from a spark plug carries information about the character of combustion. Possible algorithms of signal processing are discussed in the present paper.<br/>
저온 플라즈마를 이용한 디젤엔진 soot 제거에 관한 연구
채재우(J.O.Chae),황재원(J.W.Whang),김관영(K.Y.Kim),이창신(C.S.Lee),선희석(H.S.Sun),김건우(G.O.Kim) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.5_1
The importance of the elimination of air-pollution caused by the increase of energy demands is requested seriously in these days. Especially, the diesel engine exhaust gas is very harmful and difficult to reduce with current methods. The exhaust gas treatment technology using non-thermal plasma is one of the advanced method, and has advantage of high removal efficiency with low energy consumption. In this study, the experiment is carried with 1 cylinder agricultural diesel engine, and it is shown the soot removal efficiency with various engine R.P.M. and different reactor types(square-shape electrode reactor, planar-type reactor, and mixed type reactor).<br/>