Characterization of particles from a marine engine operating at low loads

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Anderson, Maria,1983Chalmers tekniska högskola,Chalmers University of Technology (author)

Characterization of particles from a marine engine operating at low loads

Article/chapterEnglish2015

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Elsevier BV,2015
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LIBRIS-ID:oai:research.chalmers.se:8509efd7-631e-4d21-a07f-2f8a55fb504e
https://research.chalmers.se/publication/212695URI
https://doi.org/10.1016/j.atmosenv.2014.11.009DOI

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Language:English
Summary in:English

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Notes

Particle emissions from a marine diesel engine operating at low loads with four different fuels were characterized with respect to particle number (PN) and particle mass (PM), size distribution, volatility and chemical composition. The four different fuels used were Swedish Environmental class 1 (MK1) and class 3 diesel (MK3), heavy fuel oil (HFO, 0.12 wt% S) and marine diesel oil (MDO, 0.52 wt% S). The measurements were performed for a marine diesel engine in a test-bed engine lab and the particle emissions were measured with an Engine Exhaust Particle Sizer and a Dust Monitor, giving the number concentrations in the size range of 5.6-560 nm and 300 nm to 20 gm, respectively. To quantify the amount of solid particles a thermodenuder was used. Additionally, filter samples were taken for gravimetric, black carbon (BC) and elemental analysis. The particle emissions showed a bimodal size distribution by number and the number concentrations were dominated by nanoparticles (diameter (Dp) 50 nm generally were solid primary particles. Combustion of HFO resulted in the highest PN and PM concentrations. Emission factors (EFs) for PM and PN for both the total particle emissions and the fraction of primary, solid particles are presented for different fuels and loads. EFs for nitrogen oxides (NOx), BC and some elements (Ca, Fe, V, Ni, Zn) are presented as well. This study contributes to understanding particle emissions from potential future fuels as well as emissions in ports and coastal areas where lower engine loads are common.

Subject headings and genre

TEKNIK OCH TEKNOLOGIER Naturresursteknik Marin teknik hsv//swe
ENGINEERING AND TECHNOLOGY Environmental Engineering Marine Engineering hsv//eng
NATURVETENSKAP Geovetenskap och miljövetenskap Miljövetenskap hsv//swe
NATURAL SCIENCES Earth and Related Environmental Sciences Environmental Sciences hsv//eng
Marine fuel
Low engine load
Emission factor
Ship emission
Nanoparticle
Black carbon

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Salo, Kent,1967Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)kp01sake (author)
Hallquist, A. M.IVL Svenska Miljöinstitutet AB,IVL Swedish Environmental Research Institute (author)
Fridell, Erik,1963Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)fridell (author)
Chalmers tekniska högskolaIVL Svenska Miljöinstitutet AB (creator_code:org_t)

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In:Atmospheric Environment: Elsevier BV101, s. 65-711873-28441352-2310

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ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Environmental En ...; and Marine Engineeri ...

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