Volatility of a Ship’s Emissions in the Baltic Sea Using Modelling and Measurements in Real-World Conditions

Shipping emissions are a major source of particulate matter in the atmosphere. The volatility of gaseous and particulate phase ship emissions are poorly known despite their potentially significant effect on the evolution of the emissions and their secondary organic aerosol (SOA) formation potential. An approach combining a genetic optimisation algorithm with volatility modelling was used on volatility measurement data to study the volatility distribution of a ship engine’s emissions in real-world conditions. The fuels used were marine gas oil (MGO) and methanol. The engine was operated with 50% and 70% loads with and without active NOx after-treatment with selective catalytic reduction (SCR). The volatility distributions were extended to higher volatilities by combining the speciation information of the gas phase volatile organic compounds with particle phase volatility distributions and organic carbon measurements. These measurements also provided the emission factors of the gas and particle phase emissions. The results for the particle phase volatility matched well with the existing results placing most of the volatile organic mass in the intermediate volatile organic compounds (IVOC). The IVOCs also dominated the speciated gas phase. Partitioning of the emissions in the gas and particle phases was affected significantly by the total organic mass concentration, underlining the importance of the effect of the dilution on the phase of the emissions.

Simonen, PauliTampereen Yliopisto,University of Tampere (author)
Moldanova, JanaIVL Svenska Miljöinstitutet AB,IVL Swedish Environmental Research Institute (author)
Timonen, HilkkaIllmatieteen Laitos,Finnish Meteorological Institute (FMI) (author)
Barreira, Luis M.F.Illmatieteen Laitos,Finnish Meteorological Institute (FMI) (author)
Hellén, HeidiIllmatieteen Laitos,Finnish Meteorological Institute (FMI) (author)
Jalkanen, J. P.Illmatieteen Laitos,Finnish Meteorological Institute (FMI) (author)
Majamäki, E.Illmatieteen Laitos,Finnish Meteorological Institute (FMI) (author)
D’Anna, BarbaraAix-Marseille Université,Aix Marseille University (author)
Lanzafame, GraziaTampereen Yliopisto,University of Tampere,Aix-Marseille Université,Aix Marseille University (author)
Temime-Roussel, BriceAix-Marseille Université,Aix Marseille University (author)
Mellqvist, Johan,1965Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jome (author)
Keskinen, JormaTampereen Yliopisto,University of Tampere (author)
Dal Maso, MiikkaTampereen Yliopisto,University of Tampere (author)
Tampereen YliopistoIVL Svenska Miljöinstitutet AB (creator_code:org_t)

By the author/editor: Kangasniemi, Osk ...; Simonen, Pauli; Moldanova, Jana; Timonen, Hilkka; Barreira, Luis M ...; Hellén, Heidi; show more...; Jalkanen, J. P.; Majamäki, E.; D’Anna, Barbara; Lanzafame, Grazi ...; Temime-Roussel, ...; Mellqvist, Johan ...; Keskinen, Jorma; Dal Maso, Miikka; show less...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Energy Engineeri ...

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