Record Display for the EPA National Library Catalog


Main Title Automotive Cold-Start Carbon Monoxide Emissions and Preheater Evaluation.
Author Coutts, Harold J. ;
CORP Author Cold Regions Research and Engineering Lab., Hanover, NH.
Year Published 1981
Report Number CRREL-SR-81-32; EPA-79-D-F0847;
Stock Number AD-A112 170/6
Additional Subjects Automotive vehicles ; Engines ; Starting ; Cold weather ; Test and evaluation ; Scattering ; Low temperature ; Carbon monoxide ; Emission ; Heating ; Heaters ; Air pollution ; Control systems ; Engine preheaters ; Data scatter ; Automotive engines
Library Call Number Additional Info Location Last
NTIS  AD-A112 170/6 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 37p
Fairbanks and Anchorage, Alaska, experience high wintertime ambient levels of carbon monoxide (CO). Emissions from starting automobile engines in cold weather are thought to be a major source of CO. A quantitative procedure for determining startup CO emissions was developed. The startup emissions were measured as a function of soak time at several low ambient temperatures. The performance of engine preheaters in reducing the startup CO at the various soak times and temperatures was estimated. The data scatter was too great to draw any firm conclusions; however, the length of cold-soak time appeared to have a stronger effect on cold-start CO emissions than did soak temperatures (0 to -30 C). Compared to no preheat, continuous preheat during an overnight cold soak can reduce the cold-start CO emissions by 20 to 90%.