Nanoparticle Emissions from a Heavy-Duty Engine Running on Alternative Diesel Fuels

Juha Heikkilä, Annele Virtanen, Topi Rönkkö, Jorma Keskinen, Päivi Aakko-Saksa, Timo Murtonen

Research output: Contribution to journalArticleScientificpeer-review

41 Citations (Scopus)

Abstract

We have studied the effect of three different fuels (fossil diesel fuel (EN590); rapeseed methyl ester (RME); and synthetic gas-to-liquid (GTL)) on heavy-duty diesel engine emissions. Our main focus was on nanoparticle emissions of the engine. Our results show that the particle emissions from a modern diesel engine run with EN590, GTL, orRMEconsisted of two partly nonvolatile modes that were clearly separated in particle size. The concentration and geometric mean diameter of nonvolatile nucleation mode cores measured with RME were substantially greater than with the other fuels. The soot particle concentration and soot particle size were lowest withRME.With EN590 and GTL, a similar engine load dependence ofthenonvolatilenucleationmodeparticlesizeandconcentration imply a similar formation mechanism of the particles. For RME, the nonvolatile core particle size was larger and the concentration dependence on engine load was clearly different from that of EN590 and GTL. This indicates that the formation mechanism of the core particles is different for RME. This can be explained by differences in the fuel characteristics.

Original languageEnglish
Pages (from-to)9501-9506
Number of pages6
JournalEnvironmental Science & Technology
Volume43
Issue number24
DOIs
Publication statusPublished - 15 Dec 2009
MoE publication typeA1 Journal article-refereed

Fingerprint

Alternative fuels
Diesel fuels
ester
engine
Esters
Gases
Nanoparticles
Engines
Soot
liquid
Particle size
particle size
Liquids
diesel engine
soot
formation mechanism
gas
Diesel engines
Fossil fuels
nucleation

Keywords

  • nanoparticles
  • emissions
  • exhaust emissions
  • particle emissions
  • diesel exhaust
  • diesel fuels
  • large-scale diesel engine

Cite this

Heikkilä, Juha ; Virtanen, Annele ; Rönkkö, Topi ; Keskinen, Jorma ; Aakko-Saksa, Päivi ; Murtonen, Timo. / Nanoparticle Emissions from a Heavy-Duty Engine Running on Alternative Diesel Fuels. In: Environmental Science & Technology. 2009 ; Vol. 43, No. 24. pp. 9501-9506.
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Nanoparticle Emissions from a Heavy-Duty Engine Running on Alternative Diesel Fuels. / Heikkilä, Juha; Virtanen, Annele; Rönkkö, Topi; Keskinen, Jorma; Aakko-Saksa, Päivi; Murtonen, Timo.

In: Environmental Science & Technology, Vol. 43, No. 24, 15.12.2009, p. 9501-9506.

Research output: Contribution to journalArticleScientificpeer-review

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