CHARACTERIZATION OF THE HYDROCARBON AND SULFATE FRACTIONS OF DIESEL PARTICULATE MATTER

One of the most objectionable aspects of the use of diesel engines has been the emission of particulate matter. A literature review of combustion flames, theoretical calculations and dilution tunnel experiments has been performed to elucidate the chemical and physical processes involved in the formation of diesel particulate matter. A comparative dilution tunnel study of diluted and undiluted total particulate data provided evidence supporting calculations that indicate hydrocarbon condensation should occur in the tunnel at low exhaust temperatures. The sample collection system for the measurement of total particulate matter and soluble sulfate in particulate matter on the EPA 13 mode cycle is presented. A method to correct for hydrocarbon interferences in the EPA barium chloranilate method for the determination of sulfate in particulate matter is discussed.

  • Supplemental Notes:
    • For Meeting held February 27-March 3, 1978.
  • Corporate Authors:

    Society of Automotive Engineers

    400 Commonwealth Drive
    Warrendale, PA  USA  15096
  • Authors:
    • Khatri, N J
    • JOHNSON, J H
    • Leddy, D G
  • Publication Date: 1978

Media Info

  • Features: References;
  • Pagination: 24 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00188334
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: N 780111 Preprint
  • Files: TRIS
  • Created Date: Feb 27 1979 12:00AM