Emissions Performance of Extruded Electrically Heated Catalysts in Several Vehicle Applications 950405
Low mass, extruded electrically heated catalysts (EHC) followed directly by a light-off and main converter reduced cold start non-methane hydrocarbons (NMHC) by greater than 80 percent. These reductions were demonstrated on several vehicle applications operating over the Light Duty Federal Test Procedure (FTP). To achieve this level of reduction, the design of the EHC cascade system, power level and heating time must be appropriately established. This paper discusses the impact of these design parameters on cold-start emissions reduction. From the test results, a generic empirical model was developed to predict EHC system conversion efficiency as a function of EHC power, heating time, and inlet exhaust temperature to the EHC.
Citation: Socha, L., Thompson, D., Smith, D., and Weber, P., "Emissions Performance of Extruded Electrically Heated Catalysts in Several Vehicle Applications," SAE Technical Paper 950405, 1995, https://doi.org/10.4271/950405. Download Citation
Author(s):
Louis S. Socha, David F. Thompson, David K. Smith, Phillip A. Weber
Affiliated:
Corning, Inc.
Pages: 12
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1995 Transactions: Journal of Fuels and Lubricants-V104-4
Related Topics:
Test procedures
Catalysts
Emissions
Extrusion
Hydrocarbons
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