Thermodynamic determination of the top dead centre of diesel engines

Kouremenos, DA; Margaronis, JE

dc.contributor.author	Kouremenos, DA	en
dc.contributor.author	Margaronis, JE	en
dc.date.accessioned	2014-03-01T01:07:01Z
dc.date.available	2014-03-01T01:07:01Z
dc.date.issued	1987	en
dc.identifier.issn	0015-7899	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9746
dc.subject.classification	Engineering, Multidisciplinary	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.other	AMPLIFIERS	en
dc.subject.other	DATA PROCESSING - Data Acquisition	en
dc.subject.other	MARINE ENGINES	en
dc.subject.other	PIEZOELECTRIC TRANSDUCERS - Applications	en
dc.subject.other	THERMODYNAMICS	en
dc.subject.other	ALGORITHMS	en
dc.subject.other	CHARGE AMPLIFIERS	en
dc.subject.other	COMPRESSION MODEL FITTING	en
dc.subject.other	INDICATOR DIAGRAMS	en
dc.subject.other	TOP DEAD CENTER DETERMINATION	en
dc.subject.other	DIESEL ENGINES	en
dc.title	Thermodynamic determination of the top dead centre of diesel engines	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/BF02558495	en
heal.identifier.secondary	http://dx.doi.org/10.1007/BF02558495	en
heal.language	English	en
heal.publicationDate	1987	en
heal.abstract	The indicator diagram of the Diesel engine is a valuable source of information, delivering many important data. In order to obtain from it the indicated horse power, the exact position of the top dead centre is needed. Using a measuring system containing a piezoelectric sensor, a charge amplifier and a fast data aquisition system, it is possible to store, analyze and process many successive thermodynamic cycles for each cylinder in such a way as to obtain the exact position of the top dead centre without using any additional signal from, or any mark on the flywheel. For that purpose, the experimental compression part of many successive cycles is compaired continuously to a simulation compression model containing varying parameter values determined by the measured cycle itself. After the experimental and the simulation compression curves fit each other, the top dead centre can be determined. Different known heat transfer models of the compression have been used and tested, and a new method, using stepwise chaning parameters along the compression is proposed. The method has been tested for different Diesel engines running at speeds between 100 and 2500 r.p.m. with a very good success. The results given concern three types of Diesel Engines i.e. one MAN W4V 17,5/22 A DG, 140 BHP, 1000 r.p.m. coupled to a Zoellner hydraulic brake, a ship's Diesel SULZER 5RND68, 7500 BHP, 137 r.p.m. measured on sea trials and two stationary FIAT GMT A420.8, 55000 BHP, 500 r. p.m., coupled to a synchronous electric generator. © 1987 VDI Verlag GmbH.	en
heal.publisher	Springer-Verlag	en
heal.journalName	Forschung im Ingenieurwesen	en
dc.identifier.doi	10.1007/BF02558495	en
dc.identifier.isi	ISI:A1987G728400001	en
dc.identifier.volume	53	en
dc.identifier.issue	2	en
dc.identifier.spage	37	en
dc.identifier.epage	42	en