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dc.contributor.authorBoies, Adamen
dc.contributor.authorStettler, Marc EJen
dc.contributor.authorSwanson, Jacob Jen
dc.contributor.authorJohnson, Jacob Jen
dc.contributor.authorJohnson, Tyleren
dc.contributor.authorOlfert, Jason Sen
dc.contributor.authorEggersdorfer, Max Len
dc.contributor.authorRindlisbacher, Theoen
dc.contributor.authorWang, Jingen
dc.contributor.authorThomson, Kevinen
dc.contributor.authorSmallwood, Gregen
dc.contributor.authorSevcenco, Yuraen
dc.contributor.authorWalters, Daviden
dc.contributor.authorWilliams, Paul Ien
dc.contributor.authorCorbin, Joelen
dc.contributor.authorMensah, Amewu Aen
dc.contributor.authorSymonds, Jonathanen
dc.contributor.authorDastanpour, Raminen
dc.contributor.authorRogak, Steven Nen
dc.date.accessioned2015-07-15T08:26:30Z
dc.date.available2015-07-15T08:26:30Z
dc.date.issued2015-07-15en
dc.identifier.citationBoies et al. Aerosol Science and Technology (2015) Vol. 49, Issue 9, pp. 842-855. DOI: 10.1080/02786826.2015.1078452
dc.identifier.issn0278-6826
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/248960
dc.description.abstractThe total climate, air quality and health impact of aircraft black carbon (BC) emissions depends on quantity (mass and number concentration), as well as morphology (fractal dimension and surface area) of emitted BC aggregates. This study examines multiple BC emission metrics from a gas turbine with a double annular combustor, CFM56-5B4-2P. As a part of the SAMPLE III.2 campaign, concurrent measurements of particle mobility, particle mass, particle number concentration and mass concentration, as well as collection of transmission electron microscopy (TEM) samples, allowed for characterization of the BC emissions. Mass- and number-based emission indices were strongly influenced by thrust setting during pilot combustion and ranged from <1 to 208 mg/kg-fuel and 3×1012 to 3×1016 particles/kg-fuel, respectively. Mobility measurements indicated that mean diameters ranged from 7-44 nm with a strong dependence on thrust during pilot-only combustion. Using aggregation and sintering theory with empirical effective density relationships, a power law relationship between primary particle diameter and mobility diameter is presented. Mean primary particle diameter ranged from 6-19 nm, however, laser induced incandescence (LII) and mass-mobility calculated primary particle diameters demonstrated opposite trends with thrust setting. Similarly, mass-mobility-calculated aggregate mass specific surface area and LII-measured surface area were not in agreement, indicating both methods need further development and validation before use as quantitative indicators of primary particle diameter and mass-specific surface area.
dc.description.sponsorshipThe authors express their gratitude to a number of people and organizations in helping to plan, conduct, finance and provide instruments for this measurement campaign. The 537 European Aviation Safety Agency (EASA) funded the SAMPLE III SC02 campaign (EASA.2010.FC.10, Specific Contract No: SC02). The Federal Office of Civil Aviation, Switzerland (FOCA) was critical in for providing additional financial support and arranging facilities which made this study possible. We also thank the SR Technics test bed staff, including Frithjof Siegerist, for operating the engines and enabling access to the test facility. We thank AVL, Cambustion, Grimm & TSI supplying both instruments and expertise.
dc.languageEnglishen
dc.language.isoenen
dc.publisherTaylor & Francis
dc.subjectEmissions indexen
dc.subjectMorphologyen
dc.subjectAircraften
dc.subjectPMen
dc.subjectPNen
dc.subjectFractalen
dc.subjectPrimary particleen
dc.titleParticle Emission Characteristics of a Gas Turbine with a Double Annular Combustoren
dc.typeArticle
dc.description.versionThis is the author accepted manuscript. The final version is available from Taylor & Francis via http://dx.doi.org/10.1080/02786826.2015.1078452en
prism.endingPage855
prism.publicationDate2015en
prism.publicationNameAerosol Science and Technologyen
prism.startingPage842
prism.volume49en
rioxxterms.versionofrecord10.1080/02786826.2015.1078452en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2015-07-15en
dc.contributor.orcidBoies, Adam [0000-0003-2915-3273]
dc.contributor.orcidJohnson, Tyler [0000-0002-3641-0381]
dc.identifier.eissn1521-7388
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/F034350/1)
rioxxterms.freetoread.startdate2016-08-07


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