VEHICLE EMISSIONS-SUMMER TO WINTER

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
  • ECCLESTON, B H
  • HURN, R W
• Publication Date: 1974-10

Media Info

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

Subject/Index Terms

• TRT Terms: Calcium; Diesel engines; Exhaust gases; Measurement; Soil stabilization; Temperature; Vehicle power plants
• Old TRIS Terms: Automobile engines; Calcium /soil stabilizer/
• Subject Areas: Geotechnology; Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

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