A test program was conducted to study the effect of ambient conditions on exhaust emissions from a wide variety of automobiles. Ambient temperatures above and below 75 degrees F were found to have significant effects on exhaust emissions. The Diesel and stratified charge cars were affected less than production and catalyst-equipped cars by changes in ambient temperature. The use of air conditioners at the 110 degrees F test temperature led to increased emissions and fuel consumption. Hydrocarbon reactivity and aldehyde emissions were not affected by temperature and were lower from the catalyst cars at all temperatures. /GMRL/

  • Supplemental Notes:
    • Presented at the Automobile Engineering Meeting, Toronto, Canada, 21-25 Oct. 1974.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Ashby, H A
    • Stahman, R C
    • HURN, R W
  • Publication Date: 1974-10

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 30 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00096089
  • Record Type: Publication
  • Report/Paper Numbers: SAE Paper No 741053
  • Files: TRIS
  • Created Date: Aug 13 1975 12:00AM