Experimental heat release analysis and emissions of a HSDI diesel engine fueled with ethanol-diesel fuel blends

Rakopoulos, CD; Antonopoulos, KA; Rakopoulos, DC

dc.contributor.author	Rakopoulos, CD	en
dc.contributor.author	Antonopoulos, KA	en
dc.contributor.author	Rakopoulos, DC	en
dc.date.accessioned	2014-03-01T01:26:20Z
dc.date.available	2014-03-01T01:26:20Z
dc.date.issued	2007	en
dc.identifier.issn	0360-5442	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18019
dc.subject	diesel engine	en
dc.subject	ethanol-diesel blends	en
dc.subject	heat release analysis	en
dc.subject	combustion	en
dc.subject	emissions	en
dc.subject.classification	Thermodynamics	en
dc.subject.classification	Energy & Fuels	en
dc.subject.other	COMBUSTION CHARACTERISTICS	en
dc.subject.other	COMPARATIVE PERFORMANCE	en
dc.subject.other	VEGETABLE-OIL	en
dc.subject.other	INJECTION	en
dc.subject.other	OPERATION	en
dc.title	Experimental heat release analysis and emissions of a HSDI diesel engine fueled with ethanol-diesel fuel blends	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.energy.2007.03.005	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.energy.2007.03.005	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	An experimental study is conducted to evaluate the effects of using blends of ethanol with conventional diesel fuel, with 5%, 10% and 15% (by vol.) ethanol, on the combustion and emissions of a standard, fully instrumented, four-stroke, high-speed, direct injection (HSDI), 'Hydra' diesel engine located at the authors' laboratory. The tests are conducted using each of the above fuel blends or neat diesel fuel, with the engine working at a speed of 2000 rpm and at four different loads. In each test, combustion chamber and fuel injection pressure diagrams are obtained using a specially developed, high-speed, data acquisition and processing system. A heat release analysis of the experimentally obtained cylinder pressure diagrams is developed and used, with the pertinent application of the energy and state equations. From the analysis results, plots of the history in the combustion chamber of the gross heat release rate and other related parameters reveal some very interesting features, which shed light on the combustion mechanism when using these blends. Moreover, for each test, volumetric fuel consumption, exhaust smokiness and exhaust regulated gas emissions are measured. The differences in the performance and exhaust emission parameters from the baseline operation of the diesel engine, i.e., when working with neat diesel fuel, are determined and compared. The heat release analysis results for the relevant combustion mechanism, combined with the widely differing physical and chemical properties of the ethanol against those for the diesel fuel, are used to aid the correct interpretation of the observed engine behavior. (c) 2007 Elsevier Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	ENERGY	en
dc.identifier.doi	10.1016/j.energy.2007.03.005	en
dc.identifier.isi	ISI:000249225100001	en
dc.identifier.volume	32	en
dc.identifier.issue	10	en
dc.identifier.spage	1791	en
dc.identifier.epage	1808	en