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The impact of biodiesel on particle number, size and mass emissions from a Euro4 diesel vehicle

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journal contribution
posted on 2011-05-24, 11:53 authored by Mark Tinsdale, Phil Price, Rui Chen
New European emissions legislation (Euro5) specifies a limit for Particle Number (PN) emissions and therefore drives measurement of PN during vehicle development and homologation. Concurrently, the use of biofuel is increasing in the marketplace, and Euro5 specifies that reference fuel must contain a bio-derived portion. Work was carried out to test the effect of fuels containing different levels of Fatty Acid Methyl Ester (FAME) on particle number, size, mass and composition. Measurements were conducted with a Cambustion Differential Mobility Spectrometer (DMS) to time-resolve sub-micron particles (5-1000nm), and a Horiba Solid Particle Counting System (SPCS) providing PN data from a Euro5-compliant measurement system. To ensure the findings are relevant to the modern automotive business, testing was carried out on a Euro4 compliant passenger car fitted with a high-pressure common-rail diesel engine and using standard homologation procedures. It was found that using FAME decreased total PN emissions, by 16% over the Type I drive cycle (NEDC) for a 30% biodiesel (B30) compared to mineral fuel (B0). FAME also decreased accumulation mode PN and carbonaceous mass, by 20-30% for B30 versus B0, with a consequent reduction in Diesel Particulate Filter loading rate. A 25% increase in the nucleation mode PN was found when using B30 versus B0, and the higher molecular-weight organic mass fraction also increased. Increases in nitrogen oxides when using FAMEcontaining fuels were also confirmed.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Citation

TINSDALE, M., PRICE, P. and CHEN. R., 2010. The impact of biodiesel on particle number, size and mass emissions from a Euro4 diesel vehicle. SAE International Journal of Engines, 3 (1), pp. 597-608.

Publisher

© SAE International

Version

  • VoR (Version of Record)

Publication date

2010

Notes

Copyright © 2010 SAE International. This paper was posted on this site with permission from SAE International. Further use and distribution of this paper requires permission from SAE International. It was also presented at the SAE 2010 World Congress, Detroit, USA, 12th-15th April.

ISSN

1946-3936

Book series

SAE Technical Papers;2010-01-0796

Language

  • en