Forensics of soot: C5-related nanostructure as a diagnostic of in-cylinder chemistry

Randy L. Vander Wal, Andrea Strzelec, Todd J. Toops, C. Stuart Daw, Caroline L. Genzale

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

We report observations of nanoscale microstructural changes in soot from an experimental light-duty diesel engine, produced with varying levels of biodiesel fuel blending. Based on these observations and current information in the literature, we propose a mechanistic hypothesis to explain the effects of biodiesel blending. Our underlying assumption is that particulate nanostructure is closely coupled to the local chemistry at the time the soot is formed. In the context of in-cylinder soot formation, this implies that changes in nanostructure may aid in diagnosing important changes in fuel-air mixing.

Original languageEnglish
Pages (from-to)522-526
Number of pages5
JournalFuel
Volume113
DOIs
StatePublished - 2013

Funding

This work was funded by DOE OVT under contract with Oak Ridge National Laboratory. The authors acknowledge the support of DOE Sponsors Gurpreet Singh, Ken Howden and Kevin Stork.

FundersFunder number
DOE Sponsors Gurpreet Singh
Ken Howden and Kevin Stork
U.S. Department of Energy
Oak Ridge National Laboratory

    Keywords

    • Biodiesel
    • HRTEM
    • In-cylinder mixing
    • Nanostructure
    • Soot

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