An experimental study on the impact of biodiesel origin on the regulated and PAH emissions from a Euro 4 light-duty vehicle

Bakeas, E; Karavalakis, G; Fontaras, G; Stournas, S

dc.contributor.author	Bakeas, E	en
dc.contributor.author	Karavalakis, G	en
dc.contributor.author	Fontaras, G	en
dc.contributor.author	Stournas, S	en
dc.date.accessioned	2014-03-01T01:35:10Z
dc.date.available	2014-03-01T01:35:10Z
dc.date.issued	2011	en
dc.identifier.issn	0016-2361	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20978
dc.subject	Biodiesel	en
dc.subject	Driving cycles	en
dc.subject	Exhaust emissions	en
dc.subject	Oxidation	en
dc.subject	PAH	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	ARTEMIS	en
dc.subject.other	Biodiesel blends	en
dc.subject.other	Chassis dynamometers	en
dc.subject.other	Cold-start	en
dc.subject.other	Common rail	en
dc.subject.other	Constant volume sampling	en
dc.subject.other	Consumption measurement	en
dc.subject.other	Diesel oxidation catalyst	en
dc.subject.other	Diesel vehicles	en
dc.subject.other	Driving conditions	en
dc.subject.other	Driving cycle	en
dc.subject.other	European regulation	en
dc.subject.other	Exhaust emission	en
dc.subject.other	Experimental studies	en
dc.subject.other	Fuel impact	en
dc.subject.other	Light duty vehicles	en
dc.subject.other	Methyl esters	en
dc.subject.other	Operating condition	en
dc.subject.other	PAH compounds	en
dc.subject.other	PAH emissions	en
dc.subject.other	Sharp increase	en
dc.subject.other	Ultra-low sulfur diesel	en
dc.subject.other	Used frying oil	en
dc.subject.other	Carbon dioxide	en
dc.subject.other	Dynamometers	en
dc.subject.other	Fuel oils	en
dc.subject.other	Fuels	en
dc.subject.other	Oxidation	en
dc.subject.other	Steel metallurgy	en
dc.subject.other	Sulfur	en
dc.subject.other	Vehicles	en
dc.subject.other	Biodiesel	en
dc.title	An experimental study on the impact of biodiesel origin on the regulated and PAH emissions from a Euro 4 light-duty vehicle	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.fuel.2011.05.018	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.fuel.2011.05.018	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	This study investigates the impact of mid-high biodiesel blends on the criteria and PAH emissions from a pick-up diesel vehicle. The vehicle was a Euro 4 (category N1, subclass III) compliant common rail light duty vehicle fitted with a diesel oxidation catalyst. Emission and fuel consumption measurements were performed on a chassis dynamometer using constant volume sampling (CVS) technique, following the European regulations. All measurements were conducted over the NEDC and Artemis driving cycles. Aiming to evaluate the fuel impact on emissions, a soy-based biodiesel, a palm-based biodiesel, and an oxidized biodiesel obtained from used frying oils were blended with an ultra low sulfur diesel at proportions of 30%, 50% and 80% by volume. CO2 emissions and fuel consumption exhibited increases with biodiesel over all driving conditions which ranged up to 5%. NOx emissions were found to be above the Euro 4 limit and increased with biodiesel between 5% and 10% except for the blends prepared with the palm-based methyl ester. The emissions of PM, HC, and CO decreased with the addition of biodiesel reaching maximum reductions in the order of 10%, 30% and 20% respectively; however, some increases were observed over the NEDC which may be attributed to cold-start. Sharp increases in most PAH, nitro-PAH and oxy-PAH compounds were observed with the application of biodiesel. These increases were particularly noticeable with the use of the oxidized blends, a phenomenon that it is related with the type and quality of this fuel. The emissions were also affected by the operating conditions of the engine. It was found that most PAH compounds were decreased as the mean speed and load of the driving cycle increased. (C) 2011 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Fuel	en
dc.identifier.doi	10.1016/j.fuel.2011.05.018	en
dc.identifier.isi	ISI:000295734200008	en
dc.identifier.volume	90	en
dc.identifier.issue	11	en
dc.identifier.spage	3200	en
dc.identifier.epage	3208	en