COOPERATIVE STUDY OF HEAVY DUTY DIESEL EMISSION MEASUREMENT METHODS

Among the objectives of this research were evaluation of a variety of designs in chemiluminescence analyzers used in heavy-duty testing; determination of the effects of sample line temperature and sample flow rates on emission values evaluation of an interference-free dual detector NDIR NOX analyzer system; comparison of emission results attained in parallel vs. series flow configuration, of five vs. ten-minute modes in test cycles and of emission results attained with Teflon vs. stainless steel sampling lines. Comparative findings involving instrument equivalency, composite cycles and modal differences were indeterminate. A major problem involving the NO/NOX crossover was uncovered. Until it is resolved there remains a question regarding the proper utilization of NO sub 2 to NO converters. The best performance in the study was demonstrated by the interference free NDIR system.

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

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Perez, J M
    • Clemmens, W C
    • Broering, L C
    • JOHNSON, J H
  • Publication Date: 1978

Media Info

  • Features: References;
  • Pagination: 23 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00180369
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: n 780112 Preprint
  • Files: TRIS
  • Created Date: Oct 12 1978 12:00AM