Emissions from soy biodiesel blends: A single particle perspective

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

Biodiesel has recently reemerged as a common fuel. However, emissions from biodiesel combustion have been studied in much less detail than those from traditional petroleum-based diesel. In this experiment, emissions from the combustion of different fuel blends (BOO, B02, B20, B99, where the number after B indicates the percentage, by volume, of biodiesel in the fuel) in a VW TDi engine were analyzed by aerosol time-of-flight mass spectrometers (ATOFMS) for single-particle composition and vacuum aerodynamic size. The ATOFMS results show that the PAH molecular weight distribution is not significantly affected by the fuel composition, and that sulfates are reduced by increased biodiesel content. Octanedioic acid (a carbonyl species) is increased with increased biodiesel concentration. Clustering results from the single-particle spectra show that the particles fall in five main types by chemical composition. The aerodynamic size distribution of these individual clusters was also determined. These results also show that methods used to identify diesel particle emissions for source apportionment are not applicable when significant concentrations of biodiesel are used in fuels. (C) 2011 Elsevier Ltd. All rights reserved.

Detaljer

Författare
  • Dabrina D. Dutcher
  • Joakim Pagels
  • Anil Bika
  • Luke Franklin
  • Mark Stolzenburg
  • Samantha Thompson
  • Juan Medrano
  • Nicholas Brown
  • Deborah S. Gross
  • David Kittelson
  • Peter H. McMurry
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Meteorologi och atmosfärforskning

Nyckelord

Originalspråkengelska
Sidor (från-till)3406-3413
TidskriftAtmospheric Environment
Volym45
Utgivningsnummer20
StatusPublished - 2011
PublikationskategoriForskning
Peer review utfördJa