Considerations in analysing elemental carbon from marine engine exhaust using residual, distillate and biofuels

Päivi Aakko-Saksa (Corresponding Author), Päivi Koponen, Minna Aurela, Hannu Vesala, Pekka Piimäkorpi, Timo Murtonen, Olli Sippula, Hanna Koponen, Panu Karjalainen, Niina Kuittinen, Pavlos Panteliadis, Topi Rönkkö, Hilkka Timonen

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

Elemental carbon (EC) concentrations in the exhaust of a medium-speed marine engine was evaluated using thermal-optical analysis (TOA). Particulate matter (PM) samples were collected at 75% and 25% engine loads using residual and distillate fuels with sulphur contents of 2.5%, 0.5% and 0.1%, and a biofuel (30% of bio-component). The EC analysis of PM samples from a marine engine proved to be challenging. For example, transformations of structure of the sampled particles in the inert and the oxygen mode were observed for marine engine exhaust samples. The relationship between constituents present in the samples from the marine engine using different fuels, and phenomena observed in the thermograms are discussed. Temperature protocol selection and sample pre-treatment (extractions and drying) affected the reported EC mass. Modifications in the methodology were suggested to increase the accuracy of the analysis. Repeatability and reproducibility of the EC analysis was studied in the round-robin of three laboratories.

Original languageEnglish
Pages (from-to)191-204
Number of pages14
JournalJournal of Aerosol Science
Volume126
DOIs
Publication statusPublished - 1 Dec 2018
MoE publication typeNot Eligible

Fingerprint

Marine engines
Vehicle Emissions
Exhaust systems (engine)
Biofuels
biofuel
engine
Carbon
Particulate Matter
carbon
particulate matter
Sulfur
Drying
Oxygen
Engines
sulfur
oxygen
methodology
analysis
Temperature
temperature

Keywords

  • Elemental carbon EC
  • Fuel
  • Marine engine
  • Round-robin
  • Thermal-optical analysis TOA
  • Thermogram

Cite this

Aakko-Saksa, Päivi ; Koponen, Päivi ; Aurela, Minna ; Vesala, Hannu ; Piimäkorpi, Pekka ; Murtonen, Timo ; Sippula, Olli ; Koponen, Hanna ; Karjalainen, Panu ; Kuittinen, Niina ; Panteliadis, Pavlos ; Rönkkö, Topi ; Timonen, Hilkka. / Considerations in analysing elemental carbon from marine engine exhaust using residual, distillate and biofuels. In: Journal of Aerosol Science. 2018 ; Vol. 126. pp. 191-204.
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abstract = "Elemental carbon (EC) concentrations in the exhaust of a medium-speed marine engine was evaluated using thermal-optical analysis (TOA). Particulate matter (PM) samples were collected at 75{\%} and 25{\%} engine loads using residual and distillate fuels with sulphur contents of 2.5{\%}, 0.5{\%} and 0.1{\%}, and a biofuel (30{\%} of bio-component). The EC analysis of PM samples from a marine engine proved to be challenging. For example, transformations of structure of the sampled particles in the inert and the oxygen mode were observed for marine engine exhaust samples. The relationship between constituents present in the samples from the marine engine using different fuels, and phenomena observed in the thermograms are discussed. Temperature protocol selection and sample pre-treatment (extractions and drying) affected the reported EC mass. Modifications in the methodology were suggested to increase the accuracy of the analysis. Repeatability and reproducibility of the EC analysis was studied in the round-robin of three laboratories.",
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Considerations in analysing elemental carbon from marine engine exhaust using residual, distillate and biofuels. / Aakko-Saksa, Päivi (Corresponding Author); Koponen, Päivi; Aurela, Minna; Vesala, Hannu; Piimäkorpi, Pekka; Murtonen, Timo; Sippula, Olli; Koponen, Hanna; Karjalainen, Panu; Kuittinen, Niina; Panteliadis, Pavlos; Rönkkö, Topi; Timonen, Hilkka.

In: Journal of Aerosol Science, Vol. 126, 01.12.2018, p. 191-204.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Aakko-Saksa, Päivi

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AU - Piimäkorpi, Pekka

AU - Murtonen, Timo

AU - Sippula, Olli

AU - Koponen, Hanna

AU - Karjalainen, Panu

AU - Kuittinen, Niina

AU - Panteliadis, Pavlos

AU - Rönkkö, Topi

AU - Timonen, Hilkka

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