Development and application of a fully automatic troubleshooting method for large marine diesel engines

Hountalas, DT; Kouremenos, AD

dc.contributor.author	Hountalas, DT	en
dc.contributor.author	Kouremenos, AD	en
dc.date.accessioned	2014-03-01T01:14:31Z
dc.date.available	2014-03-01T01:14:31Z
dc.date.issued	1999	en
dc.identifier.issn	1359-4311	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13115
dc.subject	Diagnosis	en
dc.subject	Diesel engine	en
dc.subject	Marine	en
dc.subject	Simulation model	en
dc.subject	Troubleshooting method	en
dc.subject.classification	Thermodynamics	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Mechanics	en
dc.subject.other	DIAGNOSIS	en
dc.title	Development and application of a fully automatic troubleshooting method for large marine diesel engines	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S1359-4311(98)00048-9	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S1359-4311(98)00048-9	en
heal.language	English	en
heal.publicationDate	1999	en
heal.abstract	The diesel engine is the main propulsion system for marine vessels except for a small category using gas or steam turbines. This is the result of its high efficiency, power concentration and reliability that have been improved considerably during the current decade. Despite these advantages, the engineer usually has to overcome great difficulties and mainly operational problems arising during the engine's lifetime. In the case of large marine engines it is almost impossible to apply trial and error methods to solve engine operating problems. This is amplified by the fact that almost all large marine diesel engines are turbocharged ones making the problem even more severe because of the interaction between the engine and the exhaust gas turbocharger. For this reason various diagnosis methods have been proposed for diesel engine condition monitoring that are mainly statistical based on known engine operating curves. These systems provide general information only and do not reveal the actual cause for an engine fault or low performance. In the current work an advanced automatic troubleshooting method based mainly on thermodynamics is presented to monitor the engine condition and to detect the actual cause for an engine fault. The method is based on the processing of measured engine data using a simulation model and provides the current engine condition and its tuning. An application of the method on a marine vessel powered by a slow speed two stroke marine diesel engine suffering from high cylinder exhaust gas temperatures and low power output is given in the present work. The method is applied at sea under actual engine operating conditions. From the processing of measured data the diagnosis method provides the current engine condition and the cause for the low power output from which the engine suffered. After conducting the major repair/adjustments proposed by the diagnosis method a substantial improvement in engine behavior was observed providing a validation for the proposed method. (C) 1998 Elsevier Science Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Applied Thermal Engineering	en
dc.identifier.doi	10.1016/S1359-4311(98)00048-9	en
dc.identifier.isi	ISI:000078557600006	en
dc.identifier.volume	19	en
dc.identifier.issue	3	en
dc.identifier.spage	299	en
dc.identifier.epage	324	en