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Relative Importance of 22 Parameters to Evaporative Emissions — A Sensitivity Analysis of EVAP 2.0
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English
Abstract
A sensitivity analysis of EVAP 2.0, a vehicle evaporative emissions model, was performed to verify the operation of the model and to determine the relative importance of 22 parameters to the hot-soak and diurnal emissions of light-duty gasoline-powered vehicles. The response of the predicted emissions was determined for user input parameters and for internal functions within the model. In addition, three parameters which are not in the model were evaluated for their potential contribution to accurate emissions predictions.
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DeFries, T., Kishan, S., and Klausmeier, R., "Relative Importance of 22 Parameters to Evaporative Emissions — A Sensitivity Analysis of EVAP 2.0," SAE Technical Paper 881594, 1988, https://doi.org/10.4271/881594.Also In
References
- Kishan S. DeFries T.H. Klausmeier R.F. “CRC-Radian Evaporative Emissions Model: EVAP 2.0,1987 Annual Report,” APRAC VE-4 Project Group, Coordinating Research Council Atlanta, Georgia May 24,1988
- Personal communication with Wayne McMahon California Air Resources Board July 1987
- Personal communication with P.S. Bush Amoco Oil Company February 17 1987
- Horowitz A.D. “Automobile Usage: A Fact Book on Trips and Weekly Travel,” General Motors report GMR-5351 April 1986
- Personal communication with Celia Shih U.S. EPA September 1987
- U.S. EPA Draft Regulatory Impact Analysis “Control of Gasoline Volatility and Evaporative Hydrocarbon Emissions from New Motor Vehicles,” July 1987
- Kishan S. DeFries T.H. Klausmeier R.F. “Description of a Motor Vehicle Evaporative Emissions Model— EVAP 2.0,” SAE Fuels and Lubricants Meeting Portland, OR October 10-13, 1988