Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Supplement to ambient temperature and vehicle emissions /
Author Eccleston, B. H. ; Hurn., R. W.
Other Authors
Author Title of a Work
Hurn, R. W.
CORP Author Bureau of Mines, Bartlesville, Okla. Bartlesville Energy Research Center.;Environmental Protection Agency, Ann Arbor, Mich. Emission Control Technology Div.
Publisher U.S. Environmental Protection Agency, Office of Air and Waste Management, Office of Mobile Source Air Pollution Control, Emission Control Technology Division,
Year Published 1975
Report Number EPA-460/3-74-028-a
Stock Number PB-275 951
OCLC Number 753978580
Subjects Motor vehicles--Pollution control devices. ; Motor fuels. ; Motor vehicles--Fuel consumption.
Additional Subjects Exhaust emissions ; Automobiles ; Air pollution ; Fuel consumption ; Hydrocarbons ; Carbon monoxide ; Nitrogen oxides ; Aldehydes ; Temperature ; Light duty vehicles ; Catalytic reactors(Exhaust systems) ; Automobile exhaust
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELCD  EPA 460-3-74-028a NVFEL Library/Ann Arbor, MI 09/26/2011
NTIS  PB-275 951 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation ii, 56 p. : charts ; 28 cm.
A test program was conducted to study the effects of ambient conditions on exhaust emissions from a variety of automobiles. Twenty-six cars, ranging from 1967 models through catalytic converter-equipped prototypes and cars powered by unconventional engines (rotary, Diesel, and stratified charge), were tested at 20 degrees, 50 degrees, 75 degrees and 110 degrees F. Test procedure was the 1975 FTP, but with engine hoods closed and cooling air flow keyed to vehicle speed. HC, CO, NOx, total aldehydes, and reactive hydrocarbons, plus carbon balance fuel economy, were measured. From production cars and catalyst-equipped cars, '75 FTP composite emissions of all three gaseous pollutants were highest at 20F. HC and CO were generally lowest at 75F; composite values were greatly influenced by cold start (Bag 1) emissions. Composite NOx emissions were generally lowest at 110F, and were relatively unaffected by ambient temperature. Fuel economy at 20F was about 10% lower than at 110F. The Diesel and stratified charge cars had low emissions and little temperature sensitivity. Use of air conditioners at 110F caused higher emissions and about 10% lower fuel economy. Reactivity of HC emissions and aldehyde emissions were unaffected by temperature and were lower from catalyst-equipped cars at all temperatures.
"EPA-460/3-74-028-a." "March 1975." "Interagency Agreement Nos. OMSAPC-IAG-007, OMSAPC-IAG-D4-F402, and OMSAPC-IAG-D4-F533"--T.p. "EPA project officer: H. Anthony Ashby"--T.p.