Thermodynamic analysis of a Rankine cycle applied on a diesel truck engine using steam and organic medium

Katsanos, CO; Hountalas, DT; Pariotis, EG

dc.contributor.author	Katsanos, CO	en
dc.contributor.author	Hountalas, DT	en
dc.contributor.author	Pariotis, EG	en
dc.date.accessioned	2014-03-01T02:54:02Z
dc.date.available	2014-03-01T02:54:02Z
dc.date.issued	2012	en
dc.identifier.issn	01968904	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36558
dc.subject	Diesel engine	en
dc.subject	Organic rankine cycle	en
dc.subject	Rankine cycle	en
dc.subject	Thermodynamic model	en
dc.subject.other	Bottoming cycle	en
dc.subject.other	Brake specific fuel consumption	en
dc.subject.other	Calculation procedure	en
dc.subject.other	Comparative evaluations	en
dc.subject.other	Cycle parameters	en
dc.subject.other	Design criterion	en
dc.subject.other	Diesel truck	en
dc.subject.other	Engine load	en
dc.subject.other	Exhaust gas temperatures	en
dc.subject.other	Heavy duty trucks	en
dc.subject.other	High pressure	en
dc.subject.other	Operating condition	en
dc.subject.other	Optimum configurations	en
dc.subject.other	Organic medium	en
dc.subject.other	Organic Rankine cycles	en
dc.subject.other	Overall efficiency	en
dc.subject.other	Rankine	en
dc.subject.other	Recovering heat	en
dc.subject.other	Superheated vapor	en
dc.subject.other	Theoretical study	en
dc.subject.other	Thermo dynamic analysis	en
dc.subject.other	Thermodynamic model	en
dc.subject.other	Thermodynamic simulations	en
dc.subject.other	Computer simulation	en
dc.subject.other	Diesel engines	en
dc.subject.other	Engines	en
dc.subject.other	Thermoanalysis	en
dc.subject.other	Thermodynamic properties	en
dc.subject.other	Vapors	en
dc.subject.other	Rankine cycle	en
dc.title	Thermodynamic analysis of a Rankine cycle applied on a diesel truck engine using steam and organic medium	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1016/j.enconman.2011.12.026	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.enconman.2011.12.026	en
heal.publicationDate	2012	en
heal.abstract	A theoretical study is conducted to investigate the potential improvement of the overall efficiency of a heavy-duty truck diesel engine equipped with a Rankine bottoming cycle for recovering heat from the exhaust gas. To this scope, a newly developed thermodynamic simulation model has been used, considering two different working media: water and the refrigerant R245ca. As revealed from the analysis, due to the variation of exhaust gas temperature with engine load it is necessary to modify the Rankine cycle parameters i.e. high pressure and superheated vapor temperature. For this reason, a new calculation procedure is applied for the estimation of the optimum Rankine cycle parameters at each operating condition. The calculation algorithm is conducted by taking certain design criteria into account, such as the exhaust gas heat exchanger size and its pinch point requirement. From the comparative evaluation between the two working media examined, using the optimum configuration of the cycle for each operating condition, it has been revealed that the brake specific fuel consumption improvement ranges from 10.2% (at 25% engine load) to 8.5% (at 100% engine load) for R245ca and 6.1% (at 25% engine load) to 7.5% (at 100% engine load) for water. © 2012 Elsevier Ltd. All rights reserved.	en
heal.journalName	Energy Conversion and Management	en
dc.identifier.doi	10.1016/j.enconman.2011.12.026	en
dc.identifier.volume	60	en
dc.identifier.spage	68	en
dc.identifier.epage	76	en