DYNAMIC FIELD MEASUREMENTS OF SUBMICRON PARTICLES FROM DIESEL ENGINES

The authors in this paper present new tools and a complete setup with which the submicron particles, emitted from combustion processes, can be measured and classified according to their chemical nature. Diesel engines are the predominant source of these particles in industrialized countries. The setup comprises an exhaust conditioning part including means for precipitation of the coarse particle fraction, dilution, and removal of volatile material. The submicron particles are detected with three different sensors: one for particle number concentration (condensation particle counter, CPC), one for the particle "Fuchs"-surface (diffusion charger, DC), and one that responds specifically to the carbonaceous particles (photoelectric aerosol sensor, PAS). These sensors possess a short response time so that transients such as those occurring in the free acceleration mode may be observed as well. Experiments on a conventional engine test bench demonstrate the tools. The test results have been good. It should be noted that correct handling of the volatile fraction is essential to avoid severe artifacts from gas to particle reactions particularly in exhaust from engines equipped with particle traps.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0013936X
• Corporate Authors:

  American Chemical Society

  1155 16th Street, NW
  Washington, DC  United States  20036
• Authors:
  • Matter, U
  • SIEGMANN, H C
  • BURTSCHER, H
• Publication Date: 1999-6-1

Language

• English

Media Info

• Pagination: p. 1946-52
• Serial:
  • Environmental Science & Technology
  • Volume: 33
  • Issue Number: 11
  • Publisher: American Chemical Society
  • ISSN: 0013-936X
  • EISSN: 1520-5851
  • Serial URL: http://pubs.acs.org/journal/esthag

Subject/Index Terms

• TRT Terms: Carbonates; Diesel engines; Exhaust pipes; Measurement; Particles; Pollutants
• ITRD Terms: 7312: Carbonate; 1314: Diesel engine; 2442: Emission; 1384: Exhaust pipe; 6136: Measurement; 4511: Particle
• Subject Areas: Environment;

Filing Info

• Accession Number: 00769888
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Oct 7 1999 12:00AM