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Experimental studies on particle emissions from cruising ship, their characteristic properties, transformation and atmospheric lifetime in the marine boundary layer

Petzold, Andreas and Hasselbach, Jan and Lauer, Peter and Baumann, Robert and Franke, Klaus and Gurk, Christian and Schlager, Hans and Weingartner, Ernest (2008) Experimental studies on particle emissions from cruising ship, their characteristic properties, transformation and atmospheric lifetime in the marine boundary layer. Atmospheric Chemistry and Physics, 8, pp. 2387-2403. Copernicus Publications.

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Official URL: http://www.atmos-chem-phys.net/8/2387/2008/

Abstract

Particle emissions from ship engines and their atmospheric transformation in the marine boundary layer (MBL) were investigated in engine test bed studies and in airborne measurements of expanding ship plumes. During the test rig studies, detailed aerosol microphysical and chemical properties were measured in the exhaust gas of a serial MAN seven-cylinder four-stroke marine diesel engine under various load conditions. The emission studies were complemented by airborne aerosol transformation studies in the plume of a large container ship in the English Channel using the DLR aircraft Falcon 20 E-5. Observations from emission studies and plume studies combined with a Gaussian plume dispersion model yield a consistent picture of particle transformation processes from emission to atmospheric processing during plume expansion. Particulate matter emission indices obtained from plume measurements are 8.8±1.0×10<sup> 15</sup> (kg fuel)<sup> −1</sup> by number for non-volatile particles and 174±43 mg (kg fuel)<sup> −1</sup> by mass for Black Carbon (BC). Values determined for test rig conditions between 85 and 110% engine load are of similar magnitude. For the total particle number including volatile compounds no emission index can be derived since the volatile aerosol fraction is subject to rapid transformation processes in the plume. Ship exhaust particles occur in the size range Dp≤0.3μm, showing a bi-modal structure. The combustion particle mode is centred at modal diameters of 0.05μm for raw emissions to 0.10μm at a plume age of 1 h. The smaller-sized volatile particle mode is centred at Dp≤0.02μm. From the decay of ship exhaust particle number concentrations in an expanding plume, a maximum plume life time of approx. 24 h is estimated for a well-mixed marine boundary layer.

Item URL in elib:https://elib.dlr.de/54612/
Document Type:Article
Title:Experimental studies on particle emissions from cruising ship, their characteristic properties, transformation and atmospheric lifetime in the marine boundary layer
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Petzold, AndreasUNSPECIFIEDUNSPECIFIED
Hasselbach, JanUNSPECIFIEDUNSPECIFIED
Lauer, PeterMAN Diesel SE, AugsburgUNSPECIFIED
Baumann, RobertUniv. of Bremen, BremenUNSPECIFIED
Franke, KlausUNSPECIFIEDUNSPECIFIED
Gurk, ChristianMPI for Chemistry, MainzUNSPECIFIED
Schlager, HansUNSPECIFIEDUNSPECIFIED
Weingartner, ErnestPaul Scherrer Institute, Villigen PSI, CHUNSPECIFIED
Date:2008
Journal or Publication Title:Atmospheric Chemistry and Physics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:8
Page Range:pp. 2387-2403
Publisher:Copernicus Publications
Status:Published
Keywords:Ship emissions, particle, emissions, aerosol, ship plume, QUANTIFY, HERCULES
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - Next Generation Train (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Petzold, Dr.rer.nat. Andreas
Deposited On:17 Jul 2008
Last Modified:02 May 2019 14:03

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