Sunflower oil fuel for diesel engines: An experimental investigation and optimum engine setting evaluation using a multi-criteria decision making approach

dc.contributor.author	Balafoutis, AT	en
dc.contributor.author	Papageorgiou, E	en
dc.contributor.author	Dikopoulou, Z	en
dc.contributor.author	Fountas, S	en
dc.contributor.author	Papadakis, G	en
dc.date.accessioned	2014-06-06T06:53:08Z
dc.date.available	2014-06-06T06:53:08Z
dc.date.issued	2014	en
dc.identifier.issn	15435075	en
dc.identifier.uri	http://dx.doi.org/10.1080/15435075.2013.777912	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/6387
dc.subject	AHP	en
dc.subject	Emissions	en
dc.subject	Injection timing	en
dc.subject	Injector protrusion	en
dc.subject	Performance	en
dc.subject	Ranking	en
dc.subject	Sunflower oil	en
dc.subject	TOPSIS	en
dc.subject.other	AHP	en
dc.subject.other	Injection timing	en
dc.subject.other	Injector protrusion	en
dc.subject.other	Performance	en
dc.subject.other	Ranking	en
dc.subject.other	TOPSIS	en
dc.subject.other	Decision making	en
dc.subject.other	Diesel fuels	en
dc.subject.other	Engines	en
dc.subject.other	Environmental impact	en
dc.subject.other	Fuels	en
dc.subject.other	Hierarchical systems	en
dc.subject.other	Optimization	en
dc.subject.other	Particulate emissions	en
dc.subject.other	Sunflower oil	en
dc.subject.other	Torque	en
dc.subject.other	Diesel engines	en
dc.subject.other	analytical hierarchy process	en
dc.subject.other	biofuel	en
dc.subject.other	diesel engine	en
dc.subject.other	exhaust emission	en
dc.subject.other	experimental study	en
dc.subject.other	multicriteria analysis	en
dc.subject.other	performance assessment	en
dc.subject.other	ranking	en
dc.subject.other	Helianthus	en
dc.title	Sunflower oil fuel for diesel engines: An experimental investigation and optimum engine setting evaluation using a multi-criteria decision making approach	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/15435075.2013.777912	en
heal.publicationDate	2014	en
heal.abstract	An experimental investigation on a diesel engine was conducted to evaluate the performance and exhaust emissions of sunflower oil and three blends with diesel fuel (20, 40, and 70% oil content volumetrically) in comparison to diesel fuel. Three injection timing and three injector protrusion settings were tested to study engine performance and exhaust emissions. The work was conducted in a direct injection agricultural tractor engine. Engine operation with sunflower oil-based fuels was unproblematic during the short-term experiments. Torque, brake-specific fuel consumption and NOx were enhanced as oil content was increased in the tested fuel. Early injection timing improved torque output, reduced BSFC, increased thermal efficiency, and NOx emissions. Deep injector protrusion increased torque release in low oil content fuels and shallow injector protrusion and increased torque in high oil content fuels. The experimental results were evaluated using two multi-criteria decision-making techniques (Analytical Hierarchy Process-AHP and Technique for Order Preference by Similarity to the Ideal Solution-TOPSIS) and the optimal fuel type-injection timing-injector protrusion configuration was selected. AHP and TOPSIS were run for three groups of criteria that were focusing on higher engine performance, lower environmental impact, and a balance between the first two, respectively. The results of the two techniques were compared. AHP and TOPSIS gave the same attribute ranking in all three groups of criteria, but did not give the same classification of Fuel/Injection Timing/Injector Protrusion configuration. The 70% oil content blend was selected from both techniques as optimal in the examined groups of criteria. © 2014 Copyright Taylor and Francis Group, LLC.	en
heal.journalName	International Journal of Green Energy	en
dc.identifier.issue	6	en
dc.identifier.volume	11	en
dc.identifier.doi	10.1080/15435075.2013.777912	en
dc.identifier.spage	642	en
dc.identifier.epage	673	en