Availability analysis of a turbocharged diesel engine operating under transient load conditions

Rakopoulos, CD; Giakoumis, EG

dc.contributor.author	Rakopoulos, CD	en
dc.contributor.author	Giakoumis, EG	en
dc.date.accessioned	2014-03-01T01:19:56Z
dc.date.available	2014-03-01T01:19:56Z
dc.date.issued	2004	en
dc.identifier.issn	0360-5442	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15776
dc.subject	Computer Analysis	en
dc.subject	cumulant	en
dc.subject	Diesel Engine	en
dc.subject	Experimental Data	en
dc.subject	Mathematical Model	en
dc.subject	Thermodynamics	en
dc.subject	Transient Response	en
dc.subject.classification	Thermodynamics	en
dc.subject.classification	Energy & Fuels	en
dc.subject.other	2ND-LAW ANALYSIS	en
dc.subject.other	COMBUSTION	en
dc.subject.other	BALANCES	en
dc.subject.other	EXERGY	en
dc.subject.other	EFFICIENCY	en
dc.subject.other	SIMULATION	en
dc.subject.other	ENERGY	en
dc.title	Availability analysis of a turbocharged diesel engine operating under transient load conditions	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.energy.2004.02.028	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.energy.2004.02.028	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	A computer analysis is developed for studying the energy and availability performance of a turbocharged diesel engine, operating under transient load conditions. The model incorporates many novel features for the simulation of transient operation, such as detailed analysis of mechanical friction, separate consideration for the processes of each cylinder during a cycle ("multi-cylinder" model) and mathematical modeling of the fuel pump. This model has been validated against experimental data taken from a turbocharged diesel engine, located at the authors' laboratory and operated under transient conditions. The availability terms for the diesel engine and its subsystems are analyzed, i.e. cylinder for both the open and closed parts of the cycle, inlet and exhaust manifolds, turbocharger and aftercooler. The present analysis reveals, via multiple diagrams, how the availability properties of the diesel engine and its subsystems develop during the evolution of the engine cycles, assessing the importance of each property. In particular the irreversibilities term, which is absent from any analysis based solely on the first-law of thermodynamics, is given in detail as regards transient response as well as the rate and cumulative terms during a cycle, revealing the magnitude of contribution of all the subsystems to the total availability destruction. (C) 2004 Elsevier Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	ENERGY	en
dc.identifier.doi	10.1016/j.energy.2004.02.028	en
dc.identifier.isi	ISI:000221779700001	en
dc.identifier.volume	29	en
dc.identifier.issue	8	en
dc.identifier.spage	1085	en
dc.identifier.epage	1104	en