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김정도(J.D. Kim),정균식(K.S.Jung),이지웅(J.W.Lee),송영환(Y.H.Song),정찬호(C.H.Jeong),최재성(J.S. Choi) 한국마린엔지니어링학회 2010 한국마린엔지니어링학회 학술대회 논문집 Vol.2010 No.4
Marine auxiliary diesel engine of the ship that is being docked in the harbor so much time and main engine of naval vessel that is being posted for the guard are being operated in low load operation. In low load condition during long terms, it has been found the deterioration of performance and expected the shortened time between overhaul because of the reverse flow through the intake port and valves. In this paper, in marine diesel engine for generator, it was investigated the phenomena of reverse flow in gas passage regarding by the comparison of the pressures measured at intake port, exhaust port and cylinder simultaneously. And also it was examined the deteriorations by the comparison for the rate of heat release. Finally the possible improvement methods for this problem are proposed.