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Physical properties, chemical composition, and cloud forming potential of particulate emissions from a marine diesel engine at various load conditions

Petzold, Andreas and Weingartner, Ernest and Hasselbach, Jan and Lauer, Peter and Kurok, Claus and Fleischer, Fritz (2010) Physical properties, chemical composition, and cloud forming potential of particulate emissions from a marine diesel engine at various load conditions. Environmental Science & Technology, 44, pp. 3800-3805. DOI: 10.1021/es903681z.

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Official URL: http://pubs.acs.org/doi/abs/10.1021%2Fes903681z

Abstract

Particulate matter (PM) emissions from one serial 4-stroke medium-speed marine diesel engine were measured for load conditions from 10% to 110% in test rig studies using heavy fuel oil (HFO). Testing the engine across its entire load range permitted the scaling of exhaust PM properties with load. Emission factors for particle number, particle mass and chemical compounds were determined. The potential of particles to form cloud droplets (cloud condensation nuclei, CCN) was calculated from chemical composition and particle size. Number emission factors are (3.43±1.26)x10^16 (kg fuel)–1 at 85-110% load, and (1.06±0.10)x10^16 (kg fuel)–1 at 10% load. CCN emission factors of 1-6 x 10^14 (kg fuel) -1 are at the lower bound of data reported in the literature. From combined thermal and optical methods, black carbon (BC) emission factors of 40 – 60 mg/(kg fuel) were determined for 85-100% load and 370 mg/(kg fuel) for 10% load. The engine load dependence of the conversion efficiency for fuel sulfur into sulfate of (1.08±0.15)% at engine idle to (3.85±0.41)% at cruise may serve as input to global emission calculations for various load conditions.

Document Type:Article
Title:Physical properties, chemical composition, and cloud forming potential of particulate emissions from a marine diesel engine at various load conditions
Authors:
AuthorsInstitution or Email of Authors
Petzold, AndreasDLR
Weingartner, ErnestPSI
Hasselbach, JanDLR
Lauer, PeterMAN Diesel SE
Kurok, ClausGermanischer Lloyd
Fleischer, FritzMAN Diesel SE
Date:2010
Journal or Publication Title:Environmental Science & Technology
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:44
DOI:10.1021/es903681z
Page Range:pp. 3800-3805
Status:Published
Keywords:Ship emissions particulate matter particle emissions shipping and climate
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - Umweltwirkungen des Verkehrs (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Dr.rer.nat. Andreas Petzold
Deposited On:06 Dec 2010 16:25
Last Modified:12 Dec 2013 21:08

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