Effect of operating parameters on the net and gross heat release rates of a direct injection diesel engine

Hountalas, DT

dc.contributor.author	Hountalas, DT	en
dc.date.accessioned	2014-03-01T02:48:15Z
dc.date.available	2014-03-01T02:48:15Z
dc.date.issued	1994	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/33673
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0028092637&partnerID=40&md5=fe6cf597e467a3e813ed60fd2da428f9	en
dc.subject.other	Data acquisition	en
dc.subject.other	Engine cylinders	en
dc.subject.other	Fuel injection	en
dc.subject.other	Heat losses	en
dc.subject.other	Heat transfer	en
dc.subject.other	Mathematical models	en
dc.subject.other	Pressure measurement	en
dc.subject.other	Pressure transducers	en
dc.subject.other	Gross heat release rates	en
dc.subject.other	Lister-Petter Alpha Direct Injection engine	en
dc.subject.other	Operating parameters	en
dc.subject.other	Diesel engines	en
dc.title	Effect of operating parameters on the net and gross heat release rates of a direct injection diesel engine	en
heal.type	conferenceItem	en
heal.publicationDate	1994	en
heal.abstract	In the present work the effect of operating parameters (i.e. speed and load) on the net and gross heat release rates, experimental and theoretical, is examined. The experimental investigation is conducted on a Lister-Petter Alpha Direct Injection engine. Pressure measurements are taken from the engine cylinder and the fuel pipeline using a flush mounted pressure transducers and a high speed data acquisition system. Twenty consecutive cycles are taken and analyzed to determine the net heat release rate in the engine cylinder. The TDC of the engine is determined using a thermodynamic method while it is also measured using an optic encoder mounted on the engine shaft. The measured fuel-line pressure before the injector are used to determine the dynamic timing (start of injection) of the engine and initiation of the heat release analysis. The gross heat release rate is obtained from the net value by determining the heat loss rate to the cylinder walls using a simulation model a new method for the calculation of the heat transfer model constants. The experimental results obtained from the present analysis are compared with those calculated using a simulation model for the entire engine cycle revealing very good agreement between them. This makes possible the use of the simulation model to examine the effect of other parameter such as injection timing, injection rate etc. on the heat release rate.	en
heal.publisher	Publ by ASME, New York, NY, United States	en
heal.journalName	American Society of Mechanical Engineers, Petroleum Division (Publication) PD	en
dc.identifier.volume	64	en
dc.identifier.issue	3	en
dc.identifier.spage	27	en
dc.identifier.epage	34	en