The Coordinating Research Council (CRC) contracted Radian Corporation to develop a computer model to characterize 'real-world' evaporative emissions from motor vehicles. This is the first annual report under the contract. It explains the current CRC-Radian evaporative emission model which is names EVAP 2.0. The model expands upon the present EPA MOBILES3 emissions model to incorporate key factors affecting evaporative emission rates, including: representative urban driving patterns to characterize the probability of occurrence of trips during different times of the day; ambient temperatures for different areas and times of year on an hourly basis; fuel tank environments, including fuel weathering, fuel tank heating, and tank cool down; evaporative emissions defined as a function of RVP, ambient temperature, and fuel tank level; emissions of carbureted and fuel-injected vehicles in various states of repair. The model is intended to be used as a research tool and is highly modular, which allows it to be easily updated with new information.
CRC (Coordinating Research Council)-Radian Evaporative Emissions Model: EVAP 2.0 Annual Report, 1987
1988
219 pages
Report
No indication
English
Description of a motor vehicle evaporative emissions model - EVAP 2,0
Automotive engineering | 1988
|Description of a Motor Vehicle Evaporative Emissions Model-EVAP 2.0
SAE Technical Papers | 1988
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