ディーゼル発電機の許容負荷の経年低下

概要

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This paper presents the investigation into the actual performance of marine diesel generator engines, The following conclusions are obtained;<BR>1. The allowable maximum load of the engines has been limited between 60 and 70% of the rated output in less than several years after launching.<BR>2. The maximum load is limited by an upper bound of an exhaust gas temperature at a cylinder exit, which is set up at 400°C in the investigation.<BR>3. The reduction of the maximum load is caused by a secular change of an engine, which produce gradual increase of the exhaust gas tempreature.<BR>These results suggest the necessity of counter-measures to a new-built ship to decrease exhaust gas temperatures and to employ higher power ratio of a diesel engine to a generator.
社団法人日本マリンエンジニアリング学会の論文