Volatility of a Ship’s Emissions in the Baltic Sea Using Modelling and Measurements in Real-World Conditions
Journal article, 2023

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.

marine emissions

volatility

atmospheric emissions

aerosols

volatility basis set

Author

Oskari Kangasniemi

University of Tampere

Pauli Simonen

University of Tampere

Jana Moldanova

IVL Swedish Environmental Research Institute

Hilkka Timonen

Finnish Meteorological Institute (FMI)

Luis M.F. Barreira

Finnish Meteorological Institute (FMI)

Heidi Hellén

Finnish Meteorological Institute (FMI)

J. P. Jalkanen

Finnish Meteorological Institute (FMI)

E. Majamäki

Finnish Meteorological Institute (FMI)

Barbara D’Anna

Aix Marseille University

Grazia Lanzafame

University of Tampere

Aix Marseille University

Brice Temime-Roussel

Aix Marseille University

Johan Mellqvist

Chalmers, Space, Earth and Environment, Geoscience and Remote Sensing

Jorma Keskinen

University of Tampere

Miikka Dal Maso

University of Tampere

Atmosphere

2073-4433 (eISSN)

Vol. 14 7 1175

"SCIPPER" Shipping contributions to inland pollution push for the enforcement of regulations

European Commission (EC) (EC/H2020/814893), 2019-05-01 -- 2022-04-30.

Subject Categories

Energy Engineering

DOI

10.3390/atmos14071175

More information

Latest update

9/14/2023