This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Factors Affecting the Design and Breakthrough Performance of Evaporative Loss Control Systems for Current and Future Emission Standards
Annotation ability available
Sector:
Language:
English
Abstract
For approximately 20 years, activated carbons used in motor vehicle evaporative loss control devices [ELCD] have been selected on the basis of butane saturation working capacity. While this technique served as a useful standard in the past, more stringent evaporative emission regulations coupled with changing automobile designs and changes in gasoline composition have prompted a reexamination of the carbon products used in the ELCD systems and the methods used to predict the carbon performance. Our studies have shown the butane working capacity test to be misleading, and a poor indicator of actual performance. In contrast, a new adsorbent test rig that measures carbon working capacity to breakthrough has been found to be a much more sensitive measurement of a carbon's suitability for meeting the 2 gram SHED emission test.
Recommended Content
Aerospace Standard | Design Considerations for Enclosed Turboshaft Engine Test Cells |
Journal Article | Enabling Flex Fuel Vehicle Emissions Testing – Test Cell Modifications and Data Improvements |
Technical Paper | DDC's Production 6V-92TA Methanol Bus Engine |
Topic
Citation
Urbanic, J., Oswald, E., Wagner, N., and Moore, H., "Factors Affecting the Design and Breakthrough Performance of Evaporative Loss Control Systems for Current and Future Emission Standards," SAE Technical Paper 890621, 1989, https://doi.org/10.4271/890621.Also In
References
- EPA-450/3-R7-001A “Draft Regulatory Impact Analysis: Proposed Refueling Emission Regulations for Gasoline-Fueled Motor Vehicles,” July 1987
- Federal Register/ 52 “Proposed Rules,” August 19 1987
- Zinger D. E. “Emission Performance of Properly Maintained Vehicles,” SAE Technical Paper Series 851262 May 1985
- “Study of Gasoline Volatility and Hydrocarbon Emissions from Motor Vehicles,” November 1985
- Joyce R. S. “Activated Carbon for Effective Control of Evaporative Losses,” SAE Technical Paper Series 690086 January 1969
- Braddock J. N. Gabele P. A. Lemmons T. J. “Factors Influencing the Composition and Quantity of Passenger Car Refueling Emissions -Part I,” SAE Technical Paper Series 861558 October 1986
- Reddy S. R. “Evaporative Emissions from Gasolines and Alcohol-Containing Gasolines with Closely Matched Volatilities,” SAE Technical Paper Series 861556 October 1986
- Furey R. L. King J. B. “Evaporative and Exhaust Emissions from Cars Fueled with Gasoline Containing Ethanol or Methyl tert-Butyl Ether,” SAE Technical Paper Series 800261 February 1980
- USEPA Northeast Corridor Regional Modeling Project Report September 1983
- Furey R. L. Nagel B. E. “Composition of Vapor Emitted from a Vehicle Gasoline Tank during Refueling,” SAE Technical Paper Series 860086 February 1986
- Shiller J. W. “Mathematical Prediction of Effects of Gasoline Composition on Reid Vapor Pressure, Refueling Emissions, and Their Reactivity,” SAE Technical Paper Series 860532 February 1986
- Manos M. J. Kelly W. C. Samfield Max “Characteristics of Activated Carbon for Controlling Gasoline Vapor Emissions - Laboratory Evaluation,” SAE Technical Paper Series 770621 June 1977
- Lang J. M. Black F. M. “Impact of Gasohol on Automobile Evaporative and Tailpipe Emissions,” SAE Technical Paper Series 810438 February 1981
- Gabele Peter A. “Effect of Fuel Volatility and Methanol Blend Usage on Evaporative Emissions,” APCA Annual Meeting June 1987
- Harvey Craig Mr. Private Communication to J. E. Urbanic.
- Black Frank M. Dr. Private Communication to J. E. Urbanic.
- Gabele Peter Dr. Private Communication to J. E. Urbanic.
- Calgon Carbon Corp., TM 21 (Butane Working Capacity Test), available from Calgon Carbon Corp., P.O. Box 717 Pittsburgh, PA.
- Annual Book of ASTM Sandard Test Methods D2867-83, Section 15 15 1987