617 asthe 87% FCC in fuel and the hypothesis that combustion produces CO2 and SO», without by-
618 products, respectively, would also affect the final estimation.
619
5 Conclusions
620 This work demonstrates a detailed method to estimate the concentration of gaseous
621 pollutants originating from singular vessels to a monitoring station, using high-resolution CFD
522 modelling. Input values for the CFD modelling setup were provided by a monitoring station in
523 Wedel, Germany and the ship’s AIS data. CFD produces results for CO2 and SO2 concentrations
524 inthe plume that are in the same order of magnitude as the measured data given by the monitoring
625 station, confirming that such a method can provide reliable estimates of pollutant concentrations
626 inthe plume in a range of 150-450 m downwind of the ship. The elimination of assumptions and
627 calculation methods related to the input conditions at the exit of the funnel and uncertainties
528 concerning ambient conditions would result in further improving the results. The approach applies
629 to the identification of FSC violations that are measured in monitoring stations.
630 CFD modelling can provide indications of measured data being affected by multiple
631 pollutant sources or when peculiar recordings are otherwise obtained. Moreover, such a method
632 can be applied to optimally determine the position of remote emission measurement stations.
633 _Finally, CFD can help estimating in-plume pollutant concentrations close to the air-water interface
534 which is necessary to calculate pollutant mass fluxes from the air to the water and vice versa.
Acknowledgements
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This work has been funded by the Hellenic Foundation for Research and Innovation (HFRI)
under the 3rd Call for H.F.R.I. Scholarships for PhD Candidates (Project ID: 6693). The EU
HORIZON 2020 Projects, SCIPPER (Grant agreement ID: 814893) and EMERGE (Grant
agreement ID: 874990) supported the study with data. OPENFOAM® is a registered trademark of
OpenCFD Limited, producer and distributor of the ©OpenFOAM software
via www.openfoam.com.
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