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Particle and NOx emissions of a non-road diesel engine with an SCR unit: The effect of fuel

Author

Listed:
  • Pietikäinen, Mari
  • Väliheikki, Ari
  • Oravisjärvi, Kati
  • Kolli, Tanja
  • Huuhtanen, Mika
  • Niemi, Seppo
  • Virtanen, Sampo
  • Karhu, Toomas
  • Keiski, Riitta L.

Abstract

Diesel engines are challenged to reduce their emissions. Nitrogen oxides (NOx), hydrocarbons, particulate matter and carbon dioxide are most important regulated diesel emissions. The legislation is driving for the use of renewable fuels in vehicles but all the impacts of those on emission control technology are not clear yet. In this study the number and chemical composition of particles emitted from a non-road diesel engine with and without a selective catalytic reduction (SCR) unit were investigated. Common diesel fuel oil (DFO) and untreated rape seed oil (RSO) were used as fuels. The NOx reduction activity of the fresh SCR catalyst was also investigated. The results indicated that the fuel had a great impact on the particles emitted from the engine. The particle number was 10–100 times higher when RSO was used as fuel compared to DFO. The DFO particles contained carbon in significantly higher proportions compared to the RSO particles. Metals, such as Fe and Cu, were also found in the DFO particles. For both fuels the NOx reduction activity was 79% with a SCR converter. As a conclusion, the use of the SCR converter decreased the number of particles in general but increased the number of the nanoparticles.

Suggested Citation

  • Pietikäinen, Mari & Väliheikki, Ari & Oravisjärvi, Kati & Kolli, Tanja & Huuhtanen, Mika & Niemi, Seppo & Virtanen, Sampo & Karhu, Toomas & Keiski, Riitta L., 2015. "Particle and NOx emissions of a non-road diesel engine with an SCR unit: The effect of fuel," Renewable Energy, Elsevier, vol. 77(C), pages 377-385.
    • Handle: RePEc:eee:renene:v:77:y:2015:i:c:p:377-385
    DOI: 10.1016/j.renene.2014.12.031
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    References listed on IDEAS

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    1. Labecki, L. & Cairns, A. & Xia, J. & Megaritis, A. & Zhao, H. & Ganippa, L.C., 2012. "Combustion and emission of rapeseed oil blends in diesel engine," Applied Energy, Elsevier, vol. 95(C), pages 139-146.
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    1. Hoseini, S.S. & Najafi, G. & Ghobadian, B. & Mamat, Rizalman & Sidik, Nor Azwadi Che & Azmi, W.H., 2017. "The effect of combustion management on diesel engine emissions fueled with biodiesel-diesel blends," Renewable and Sustainable Energy Reviews, Elsevier, vol. 73(C), pages 307-331.
    2. Takuya Kuwahara & Keiichiro Yoshida & Tomoyuki Kuroki & Kenichi Hanamoto & Kazutoshi Sato & Masaaki Okubo, 2019. "High Reduction Efficiencies of Adsorbed NO x in Pilot-Scale Aftertreatment Using Nonthermal Plasma in Marine Diesel-Engine Exhaust Gas," Energies, MDPI, vol. 12(19), pages 1-13, October.

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