Particle emissions from a modern heavy-duty diesel engine as ice nuclei in immersion freezing mode: a laboratory study on fossil and renewable fuels
(2022) In Atmospheric Chemistry and Physics 22(23). p.1615-1631- Abstract
- We studied ice-nucleating abilities of particulate emissions from a modern heavy-duty diesel engine using three different types of fuel. The polydisperse particle emissions were sampled during engine operation and introduced to a continuous-flow diffusion chamber (CFDC) instrument at a constant relative humidity RHwater=110 %, while the temperature was ramped between −43 and −32 ∘C (T scan). The tested fuels were EN 590 compliant low-sulfur fossil diesel, hydrotreated vegetable oil (HVO), and rapeseed methyl ester (RME); all were tested without blending. Sampling was carried out at different stages in the engine exhaust aftertreatment system, with and without simulated atmospheric processing using an oxidation flow reactor. In addition to... (More)
- We studied ice-nucleating abilities of particulate emissions from a modern heavy-duty diesel engine using three different types of fuel. The polydisperse particle emissions were sampled during engine operation and introduced to a continuous-flow diffusion chamber (CFDC) instrument at a constant relative humidity RHwater=110 %, while the temperature was ramped between −43 and −32 ∘C (T scan). The tested fuels were EN 590 compliant low-sulfur fossil diesel, hydrotreated vegetable oil (HVO), and rapeseed methyl ester (RME); all were tested without blending. Sampling was carried out at different stages in the engine exhaust aftertreatment system, with and without simulated atmospheric processing using an oxidation flow reactor. In addition to ice nucleation experiments, we used supportive instrumentation to characterize the emitted particles for their physicochemical properties and presented six parameters. We found that the studied emissions contained no significant concentrations of ice-nucleating particles likely to be of atmospheric relevance. The substitution of fossil diesel with renewable fuels, using different emission aftertreatment systems such as a diesel oxidation catalyst, and photochemical aging of total exhaust had only minor effect on their ice-nucleating abilities. (Less)
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https://lup.lub.lu.se/record/de5aff57-ff84-4d6c-b38c-331424faf2ab
- author
- organization
- publishing date
- 2022-02-02
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Particle emissions, Heavy-duty engine, diesel, HVO, RME, Ice-nucleating particles
- in
- Atmospheric Chemistry and Physics
- volume
- 22
- issue
- 23
- pages
- 17 pages
- publisher
- Copernicus GmbH
- external identifiers
-
- scopus:85124471175
- ISSN
- 1680-7324
- DOI
- 10.5194/acp-22-1615-2022
- language
- English
- LU publication?
- yes
- id
- de5aff57-ff84-4d6c-b38c-331424faf2ab
- date added to LUP
- 2022-02-18 13:33:09
- date last changed
- 2022-05-19 09:38:14
@article{de5aff57-ff84-4d6c-b38c-331424faf2ab, abstract = {{We studied ice-nucleating abilities of particulate emissions from a modern heavy-duty diesel engine using three different types of fuel. The polydisperse particle emissions were sampled during engine operation and introduced to a continuous-flow diffusion chamber (CFDC) instrument at a constant relative humidity RHwater=110 %, while the temperature was ramped between −43 and −32 ∘C (T scan). The tested fuels were EN 590 compliant low-sulfur fossil diesel, hydrotreated vegetable oil (HVO), and rapeseed methyl ester (RME); all were tested without blending. Sampling was carried out at different stages in the engine exhaust aftertreatment system, with and without simulated atmospheric processing using an oxidation flow reactor. In addition to ice nucleation experiments, we used supportive instrumentation to characterize the emitted particles for their physicochemical properties and presented six parameters. We found that the studied emissions contained no significant concentrations of ice-nucleating particles likely to be of atmospheric relevance. The substitution of fossil diesel with renewable fuels, using different emission aftertreatment systems such as a diesel oxidation catalyst, and photochemical aging of total exhaust had only minor effect on their ice-nucleating abilities.}}, author = {{Korhonen, Kimmo and Bjerring Kristensen, Thomas and Falk, John and Malmborg, Vilhelm and Eriksson, Axel and Gren, Louise and Novakovic, Maja and Shamun, Sam and Karjalainen, Panu and Markkula, Lassi and Pagels, Joakim and Svenningsson, Birgitta and Tunér, Martin and Komppula, Mika and Laaksonen, Ari and Virtanen, Annele}}, issn = {{1680-7324}}, keywords = {{Particle emissions; Heavy-duty engine; diesel; HVO; RME; Ice-nucleating particles}}, language = {{eng}}, month = {{02}}, number = {{23}}, pages = {{1615--1631}}, publisher = {{Copernicus GmbH}}, series = {{Atmospheric Chemistry and Physics}}, title = {{Particle emissions from a modern heavy-duty diesel engine as ice nuclei in immersion freezing mode: a laboratory study on fossil and renewable fuels}}, url = {{http://dx.doi.org/10.5194/acp-22-1615-2022}}, doi = {{10.5194/acp-22-1615-2022}}, volume = {{22}}, year = {{2022}}, }