Theoretical study of the effects of engine parameters on performance and emissions of a pilot ignited natural gas diesel engine

Papagiannakis, RG; Kotsiopoulos, PN; Zannis, TC; Yfantis, EA; Hountalas, DT; Rakopoulos, CD

dc.contributor.author	Papagiannakis, RG	en
dc.contributor.author	Kotsiopoulos, PN	en
dc.contributor.author	Zannis, TC	en
dc.contributor.author	Yfantis, EA	en
dc.contributor.author	Hountalas, DT	en
dc.contributor.author	Rakopoulos, CD	en
dc.date.accessioned	2014-03-01T01:34:47Z
dc.date.available	2014-03-01T01:34:47Z
dc.date.issued	2010	en
dc.identifier.issn	0360-5442	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20856
dc.subject	Dual fuel diesel engine	en
dc.subject	Natural gas	en
dc.subject	Pilot ignition	en
dc.subject	Pilot fuel quantity	en
dc.subject	Air inlet preheating	en
dc.subject	Combustion	en
dc.subject	Emissions	en
dc.subject.classification	Thermodynamics	en
dc.subject.classification	Energy & Fuels	en
dc.subject.other	DUAL FUEL ENGINE	en
dc.subject.other	COMBUSTION PROCESSES	en
dc.subject.other	COMPRESSION	en
dc.subject.other	SIMULATION	en
dc.subject.other	METHANE	en
dc.title	Theoretical study of the effects of engine parameters on performance and emissions of a pilot ignited natural gas diesel engine	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.energy.2009.06.006	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.energy.2009.06.006	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	With the increasing concern regarding diesel vehicle emissions and the rising cost of the liquid diesel fuel as well, more conventional diesel engines internationally are pursuing the option of converting to use natural gas as a supplement for the conventional diesel fuel (dual fuel natural gas/diesel engines). The most common natural gas/diesel operating mode is referred to as the pilot ignited natural gas diesel engine (PINGDE) where most of the engine power output is provided by the gaseous fuel while a pilot amount of the liquid diesel fuel injected near the end of the compression stroke is used only as an ignition source of the gaseous fuel-air mixture. The specific engine operating mode, in comparison with conventional diesel fuel operation, suffers from low brake engine efficiency and high carbon monoxide (CO) emissions. In order to be examined the effect of increased air inlet temperature combined with increased pilot fuel quantity on performance and exhaust emissions of a PINGD engine, a theoretical investigation has been conducted by applying a comprehensive two-zone phenomenological model on a high-speed, pilot ignited, natural gas diesel engine located at the authors' laboratory. The main objectives of the present work are to record the variation of the relative impact each one of the above mentioned parameters has on performance and exhaust emissions and also to reveal the advantages and disadvantages each one of the proposed method. It becomes more necessary at high engine load conditions where the simultaneous increase of the specific engine parameters may lead to undesirable results with nitric oxide emissions. (C) 2009 Elsevier Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	ENERGY	en
dc.identifier.doi	10.1016/j.energy.2009.06.006	en
dc.identifier.isi	ISI:000275166900076	en
dc.identifier.volume	35	en
dc.identifier.issue	2	en
dc.identifier.spage	1129	en
dc.identifier.epage	1138	en