Combustion heat release analysis of ethanol or n-butanol diesel fuel blends in heavy-duty DI diesel engine

Rakopoulos, DC; Rakopoulos, CD; Papagiannakis, RG; Kyritsis, DC

dc.contributor.author	Rakopoulos, DC	en
dc.contributor.author	Rakopoulos, CD	en
dc.contributor.author	Papagiannakis, RG	en
dc.contributor.author	Kyritsis, DC	en
dc.date.accessioned	2014-03-01T01:35:25Z
dc.date.available	2014-03-01T01:35:25Z
dc.date.issued	2011	en
dc.identifier.issn	0016-2361	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21040
dc.subject	Heavy-duty DI diesel	en
dc.subject	Combustion	en
dc.subject	Ethanol	en
dc.subject	n-Butanol	en
dc.subject	Emissions	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	BIO-DIESEL	en
dc.subject.other	VEGETABLE-OILS	en
dc.subject.other	EXHAUST EMISSIONS	en
dc.subject.other	IGNITION ENGINE	en
dc.subject.other	COTTONSEED OIL	en
dc.subject.other	CRUDE GLYCEROL	en
dc.subject.other	METHYL-ESTER	en
dc.subject.other	PERFORMANCE	en
dc.subject.other	INJECTION	en
dc.subject.other	MODEL	en
dc.title	Combustion heat release analysis of ethanol or n-butanol diesel fuel blends in heavy-duty DI diesel engine	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.fuel.2010.12.003	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.fuel.2010.12.003	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	An experimental study is conducted to evaluate the effects of using blends of diesel fuel with either ethanol in proportions of 5% and 10% or n-butanol in 8% and 16% (by vol.), on the combustion behavior of a fully-instrumented, six-cylinder, turbocharged and after-cooled, heavy duty, direct injection (DI), 'Mercedes-Benz' engine installed at the authors' laboratory. Combustion chamber and fuel injection pressure diagrams are obtained at two speeds and three loads using a developed, high-speed, data acquisition and processing system. A heat release analysis of the experimentally obtained cylinder pressure diagrams is developed and used. Plots of histories in the combustion chamber of the heat release rate and temperatures reveal some interesting features, which shed light into the combustion mechanism when using these promising bio-fuels that can be derived from biomass (bio-ethanol and bio-butanol). The key results are that with the use of these bio-fuels blends, fuel injection pressure diagrams are very slightly displaced (delayed), ignition delay is increased, maximum cylinder pressures are slightly reduced and cylinder temperatures are reduced during the first part of combustion. These results, combined with the differing physical and chemical properties of the ethanol and n-butanol against those for the diesel fuel, which constitutes the baseline fuel, aid the correct interpretation of the observed engine behavior performance-and emissions-wise. (C) 2010 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	FUEL	en
dc.identifier.doi	10.1016/j.fuel.2010.12.003	en
dc.identifier.isi	ISI:000288243100019	en
dc.identifier.volume	90	en
dc.identifier.issue	5	en
dc.identifier.spage	1855	en
dc.identifier.epage	1867	en