PROTOCOL TO CHARACTERIZE GASEOUS EMISSIONS AS A FUNCTION OF FUEL AND ADDITIVE COMPOSITION

This project sought to validate an engine dynamometer test schedule for additive effects previously used in Dow and Bu Mines programs. Previous problems with vehicle-to-engine dynamometer comparability were solved by the use of a Clayton power absorption unit and a fixed flywheel as an inertia simulator. Thus, adequate road simulation was achieved. Numerous analytical techniques were developed including analysis for SO2, H2S, COS, methyl and ethyl mercaptan, ammonia, N,N-dimethylnitrosamine, hydrocarbon distribution, and sulfate. No additive-derived products were found in the study of two commercial additive packages with either catalyst or non-catalyst engine configurations. The mileage accumulation schedule used resulted in overly-high rates of accumulation of intake manifold deposits for both additive and base fuels. It is suggested that greater mileage accumulations over a heavier duty cycle will be necessary to detect the effects of additives on catalyst deterioration.

  • Corporate Authors:

    Southwest Research Institute

    Department of Mechanical Sciences
    San Antonio, TX  United States  78284

    Environmental Sciences Research Laboratory

    Research Triangle Pk, NC  United States  27711
  • Authors:
    • Dietzmann, H E
  • Publication Date: 1975-9

Media Info

  • Pagination: 132 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00137103
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: Final Rpt., EPA/600/2-75/048
  • Contract Numbers: EPA-68-02-1275
  • Files: TRIS
  • Created Date: Sep 4 1976 12:00AM