This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
SULEV and “Off-Cycle” Emissions Benefits of a Vacuum-Insulated Catalytic Converter
Technical Paper
1999-01-0461
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In previous SAE papers, the initial development and testing of a vacuum-insulated catalytic converter was presented. This paper provides an update of the converter development and an analysis of potential off-cycle emissions savings. Hot vibration, cool-down, and 1975 Federal Test Procedure (FTP-75) emissions test results are provided to demonstrate the effectiveness of design improvements in greatly increasing durability while retaining performance. Using standard drive cycles and “real-world” driving statistics with a vehicle simulator (ADVISOR©), catalyst temperature and vehicle exhaust emissions of a sport utility vehicle (SUV) were predicted for 16 days of driving (107 trips, 770 total miles). Compared to the baseline vehicle with a conventional catalytic converter, the SUV with a vacuum-insulated converter produced 66% less non-methane hydrocarbon (NMHC), 65% less carbon monoxide (CO), and 60% less oxides of nitrogen (NOx).
Recommended Content
Authors
Topic
Citation
Burch, S. and Biel, J., "SULEV and “Off-Cycle” Emissions Benefits of a Vacuum-Insulated Catalytic Converter," SAE Technical Paper 1999-01-0461, 1999, https://doi.org/10.4271/1999-01-0461.Also In
Gas Direct Injection Aftertreatment and Exhaust Aftertreatment Modeling
Number: SP-1455; Published: 1999-03-01
Number: SP-1455; Published: 1999-03-01
References
- Burch, S. Keyser, M. Colucci, C. Potter, T. Benson, D. Biel, J. “Applications and Benefits of Catalytic Converter Thermal Management,” SAE Technical Paper # 961134 1996
- Burch, S. Potter, T. Keyser, M. Brady, M. Michaels, K. “Reducing Cold-Start Emissions by Catalytic Converter Thermal Management,” SAE Technical Paper # 950409 1995
- Burch, S. Keyser, M. Potter, T. Benson, D. “Thermal Analysis and Testing of a Vacuum Insulated Catalytic Converter,” SAE Technical Paper # 941998 1994
- Laing, P. “Development of an Alternator-Powered Electrically-Heated Catalyst System,” SAE Technical Paper # 941042 1994
- Benson, D.K. Potter, T.F. “Method and Apparatus for Thermal Management of Vehicle Exhaust Systems,” December 26 1995
- Benson, D.K. Potter, T.F. Tracy, C.E. “Design of a Variable-Conductance Vacuum Insulation,” SAE Technical Paper # 940315 1994
- McKinnon, D. Webb, C. Weber, P. Bykowski, B. “Using Advanced Emission Control Systems to Demonstrate LEV11 ULEV on Light-Duty Gasoline Vehicles,” SAE Technical Paper # 1999-01-0774 1999
- U.S. Environmental Protection Agency (EPA) “Federal Test Procedure Review Project: Preliminary Technical Report,” May 1993
- Magbuhat, S. Long, J. “Improving California's Motor Vehicle Emissions Inventory Activity Estimates Through The Use Of Datalogger-Equipped Vehicles,” 6TH CRC On-Road Vehicle Emissions Workshop March 19 1996
- 1995 National Personal Transportation Survey U.S. Dept. of Transportation
- Gammariello, R. Long, J. “Development of Unified Correction Cycles” 6TH CRC On-Road Vehicle Emissions Workshop San Diego, California March 18 1996
- Gammariello, R. LEV-II On-Road Vehicle Emissions Workshop San Diego, California September 18 1998
- Wipke, K. Cuddy, M. Burch, S. Johnson, V. Markel, T. Rausen, D. Sprik, S. “ADVISOR 2.0: A Second-Generation Advanced Vehicle Simulator for Systems Analysis,” NAEVI 98 Phoenix, Arizona December 3-4
- Senger, R. Merkle, M. Nelson, D. “Validation of ADVISOR as a Simulation Tool for a Series Hybrid Electric Vehicle,” SAE Technical Paper # 981133
- 1998 Automobile Review Consumer Reports April 1998 25 40
- Theis, J. “Catalytic Converter Diagnosis Using the Catalyst Exotherm,” SAE Technical Paper # 942058 1994