PRACTICAL EXPERIENCE WITH THE MEASUREMENT OF DIESEL SMOKE IN ACCORDANCE WITH EEC REGULATION 24

PRAKTISCHE ERFAHRUNGEN BEI MESSUNG VON DIESELRAUCH NACH EG 24

EEC directive 24 provides for the measurement of the density of smoke from diesel engines for road vehicles by means of opacity meters. Together with this, the light reduction caused by smoke is to be determined under fully laden waiting conditions and under free acceleration. The author reports on the introduction of this rule by a manufacturer of vehicle diesel engines who hitherto has only worked with filter equipment. Illustrations are given of conversion tables, comparative curves and calculation examples which permit a simple conversion of the blackening values to opacity units with a sufficient degree of accuracy. Possible errors and wrong evaluations are discussed. Indeed usually relation can be established between smoke density during waiting and under conditions of free acceleration, but certain basis for the drawing up of correlations cannot be found. Gas/dynamic, thermal, engine and measurement influences during non-stationary operation are the determining factors. Measurements made during driving operations under various conditions again show the need for standardized evaluation of smoke, and especially in the establishment of faults on the road. These measurements should also contribute if necessary to the supplementing of previously established limit values. The covering abstract for the conference is IRRD NO. 2008556. /TRRL/

Language

  • Undetermined

Media Info

  • Features: Figures;
  • Pagination: 16 p.
  • Serial:
    • Volume: A
    • Issue Number: 21

Subject/Index Terms

Filing Info

  • Accession Number: 00096755
  • Record Type: Publication
  • Source Agency: Bundesanstalt für Straßenwesen (BASt)
  • Report/Paper Numbers: Conf Paper
  • Files: ITRD, TRIS
  • Created Date: Jul 24 1975 12:00AM