Effect of fuel on the hygroscopicity of particles emitted from 1.6MW marine engine

Niina Kuittinen; Fanni Mylläri; Panu Karjalainen; Pauli Pekka Simonen; Päivi Aakko-Saksa; Hilkka Timonen; Topi Rönkkö

Effect of fuel on the hygroscopicity of particles emitted from 1.6MW marine engine

Niina Kuittinen, Fanni Mylläri, Panu Karjalainen, Pauli Pekka Simonen, Päivi Aakko-Saksa, Hilkka Timonen, Topi Rönkkö

Research output: Contribution to conference › Conference Abstract › Scientific › peer-review

Abstract

Particles originated from ship exhaust aerosol can increase the concentration of cloud condensation nuclei over heavily trafficked shipping lanes, possibly affecting marine stratocumulus clouds and enabling the formation of ship track clouds. The reduction of sulphur in marine fuels has been estimated to decrease the direct and indirect cooling effects of particles originated from ship engines. In this study, the effect of fuel on the tendency of ship engine exhaust particles to grow by water intake was studied by applying hygroscopic tandem differential mobility analyser (HTDMA). The measurements were conducted with medium-speed testbed engine burning four different fuels. The measured growth factors were between 1-1.25 after exposing the aerosol to relative humidity of 80%. Fuel type affected the hygroscopic growth factors and larger growth factor were observed for the fuels with higher sulphur content.

Original language	English
Pages	438
Number of pages	1
Publication status	Published - 31 Aug 2020
MoE publication type	Not Eligible
Event	European Aerosol Conference, EAC 2020 - Virtual, Aachen, Germany Duration: 30 Aug 2020 → 4 Sept 2020 https://phaidra.univie.ac.at/open/o:1164483 (Program & Abstracts)

Conference

Conference	European Aerosol Conference, EAC 2020
Country/Territory	Germany
City	Aachen
Period	30/08/20 → 4/09/20
Internet address	https://phaidra.univie.ac.at/open/o:1164483 (Program & Abstracts)

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title = "Effect of fuel on the hygroscopicity of particles emitted from 1.6MW marine engine",

abstract = "Particles originated from ship exhaust aerosol can increase the concentration of cloud condensation nuclei over heavily trafficked shipping lanes, possibly affecting marine stratocumulus clouds and enabling the formation of ship track clouds. The reduction of sulphur in marine fuels has been estimated to decrease the direct and indirect cooling effects of particles originated from ship engines. In this study, the effect of fuel on the tendency of ship engine exhaust particles to grow by water intake was studied by applying hygroscopic tandem differential mobility analyser (HTDMA). The measurements were conducted with medium-speed testbed engine burning four different fuels. The measured growth factors were between 1-1.25 after exposing the aerosol to relative humidity of 80%. Fuel type affected the hygroscopic growth factors and larger growth factor were observed for the fuels with higher sulphur content.",

author = "Niina Kuittinen and Fanni Myll{\"a}ri and Panu Karjalainen and Simonen, {Pauli Pekka} and P{\"a}ivi Aakko-Saksa and Hilkka Timonen and Topi R{\"o}nkk{\"o}",

year = "2020",

month = aug,

day = "31",

language = "English",

pages = "438",

note = "European Aerosol Conference, EAC 2020 ; Conference date: 30-08-2020 Through 04-09-2020",

url = "https://phaidra.univie.ac.at/open/o:1164483",

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TY - CONF

T1 - Effect of fuel on the hygroscopicity of particles emitted from 1.6MW marine engine

AU - Kuittinen, Niina

AU - Mylläri, Fanni

AU - Karjalainen, Panu

AU - Simonen, Pauli Pekka

AU - Aakko-Saksa, Päivi

AU - Timonen, Hilkka

AU - Rönkkö, Topi

PY - 2020/8/31

Y1 - 2020/8/31

N2 - Particles originated from ship exhaust aerosol can increase the concentration of cloud condensation nuclei over heavily trafficked shipping lanes, possibly affecting marine stratocumulus clouds and enabling the formation of ship track clouds. The reduction of sulphur in marine fuels has been estimated to decrease the direct and indirect cooling effects of particles originated from ship engines. In this study, the effect of fuel on the tendency of ship engine exhaust particles to grow by water intake was studied by applying hygroscopic tandem differential mobility analyser (HTDMA). The measurements were conducted with medium-speed testbed engine burning four different fuels. The measured growth factors were between 1-1.25 after exposing the aerosol to relative humidity of 80%. Fuel type affected the hygroscopic growth factors and larger growth factor were observed for the fuels with higher sulphur content.

AB - Particles originated from ship exhaust aerosol can increase the concentration of cloud condensation nuclei over heavily trafficked shipping lanes, possibly affecting marine stratocumulus clouds and enabling the formation of ship track clouds. The reduction of sulphur in marine fuels has been estimated to decrease the direct and indirect cooling effects of particles originated from ship engines. In this study, the effect of fuel on the tendency of ship engine exhaust particles to grow by water intake was studied by applying hygroscopic tandem differential mobility analyser (HTDMA). The measurements were conducted with medium-speed testbed engine burning four different fuels. The measured growth factors were between 1-1.25 after exposing the aerosol to relative humidity of 80%. Fuel type affected the hygroscopic growth factors and larger growth factor were observed for the fuels with higher sulphur content.

M3 - Conference Abstract

SP - 438

T2 - European Aerosol Conference, EAC 2020

Y2 - 30 August 2020 through 4 September 2020

ER -

Effect of fuel on the hygroscopicity of particles emitted from 1.6MW marine engine

Abstract

Conference

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