EMISSIONS PATTERNS OF DIESEL-POWERED PASSENGER CARS

The gaseous and particulate emissions from a light-duty diesel powered passenger car were measured by a variety of chemical analysis techniques for three different fuels, typical No. 1 and No. 2 commercial diesel fuels and the Federal Register No. 2-D smoke test fuel. Hydrocarbon emissions were found to be inversely related to fuel molecular weight. The NO2/NO ratio was found to be much higher than for gasoline engines approaching 0.3 at low load. Particulate emissions were approximately 0.3 grams/mile for all fuels and driving cycles tested. Sulfate emissions were high, approaching that of some catalyst cars. Sulfate emissions decreased with decreasing fuel sulfur and increased by a factor of two in highway driving over urban driving. The potential pollution problems with such cars are worthy of further study.

• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Braddock, J N
  • Bradow, R L
• Publication Date: 1975-6

Media Info

• Pagination: 18 p.

Subject/Index Terms

• TRT Terms: Automotive engineering; Chemical analysis; Diesel engines; Diesel fuels; Hydrocarbons; Particulates; Pollutants; Sulfates
• Old TRIS Terms: Emission rates
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00127271
• Record Type: Publication
• Report/Paper Numbers: SAE #750682
• Files: TRIS
• Created Date: Jan 14 1976 12:00AM