Publication:
Influence of piston bowl geometry on combustion and emission characteristics

Simple item page
dc.contributor.authorÖZDEMİR, MEHMED RAFET
dc.contributor.authorsSener, Ramazan; Ozdemir, Mehmed R.; Yangaz, Murat U.
dc.date.accessioned2022-03-12T22:28:25Z
dc.date.available2022-03-12T22:28:25Z
dc.date.issued2019
dc.description.abstractTogether with the global energy concerns, the norms are getting stringent to prevent the emission threat. There are on-going studies on systems working with both fossil and renewable energy sources aiming to create more efficient and less emissive processes and devices. Accordingly, a set of numerical simulations was performed to examine the effect of the bowl shape of a piston on the performance behaviour, emission rates and combustion characteristics in a four-cylinder, four strokes, water-cooled compression ignition engine using n-heptane (C7H16) as fuel. Six different piston bowl geometries, five from the literature and proposed one, were utilized having different length-to-diameter ratio, curvature and sidewall radius. The study was conducted at 1750 r/min engine speed and a constant compression ratio with a full performance condition. The intake and exhaust valves have been considered as closed during the analysis to provide the variation of crank angle from 300 CA to 495 CA. The results showed that the piston bowl geometry has a significant impact on the rate of heat release, in-cylinder pressure, in-cylinder temperature, and emission trends in the engine. Among the piston bowl geometries studied, design DE and design DF exhibited better combustion characteristics and relatively lower emission trends compared to other designs. The observed rate of heat release, in-cylinder pressure and in-cylinder temperature magnitudes of these two geometries was higher in comparison to other geometries. Moreover, the trade-off for NOx emission was also observed higher for these piston bowl designs.
dc.identifier.doi10.1177/0957650919854637
dc.identifier.eissn2041-2967
dc.identifier.issn0957-6509
dc.identifier.urihttps://hdl.handle.net/11424/235308
dc.identifier.wosWOS:000480249800002
dc.language.isoeng
dc.publisherSAGE PUBLICATIONS LTD
dc.relation.ispartofPROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCombustion
dc.subjectemissions
dc.subjectbowl design
dc.subjectCFD
dc.subjectinternal combustion engine
dc.subjectDIESEL-ENGINE
dc.subjectCHAMBER GEOMETRY
dc.subjectOPERATING-CONDITIONS
dc.subjectMETHYL-ESTER
dc.subjectPERFORMANCE
dc.subjectBIODIESEL
dc.subjectFUEL
dc.subjectOPTIMIZATION
dc.subjectSWIRL
dc.subjectRATIO
dc.titleInfluence of piston bowl geometry on combustion and emission characteristics
dc.typearticle
dspace.entity.typePublication
local.avesis.id950793c5-e0cc-4534-9b19-f8d83395249e
local.import.packageSS17
local.indexed.atWOS
local.indexed.atSCOPUS
local.journal.numberofpages12
local.journal.quartileQ3
oaire.citation.endPage587
oaire.citation.issue5
oaire.citation.startPage576
oaire.citation.titlePROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY
oaire.citation.volume233
relation.isAuthorOfPublication0ba9888a-c461-4d55-83da-4114c06d98a8
relation.isAuthorOfPublication.latestForDiscovery0ba9888a-c461-4d55-83da-4114c06d98a8

Files

Collections

Research Outputs