CRC-Radian evaporative emissions model: Evaluation of time and driving effects. 1990 Annual report. Final report

Technical Report · Mon May 04 04:00:00 EDT 1992

OSTI ID:7045943

DeFries, T H; Kishan, S; Klausmeier, R F

In 1986, Radian Corporation began developing an evaporative emissions model for the Coordinating Research Council. The model was based on existing data. The current version of the model (EVAP 2.0) represents a modeling effort taken as far as the existing data would allow (1,2). A sensitivity analysis of EVAP 2.0 indicated there were several areas which needed to be explored to improve the prediction abilities of the model. Based on the sensitivity analyses, a vehicle test program was designed by Radian Corporation and was performed by Automotive Testing Laboratories (ATL)(3). The report presents the analysis of data from vehicle tests in that test program. Based on the results presented in the document, alternative approaches can be used to model evaporative emissions. A discussion and recommendations for these approaches is presented in the last section of the report. Once these modeling approaches have been selected the current version of EVAP can be updated.

• Research Organization: Radian Corp., Austin, TX (United States)
• OSTI ID: 7045943
• Report Number(s): PB-92-192871/XAB; RCN--245-052-10
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION
AIR POLLUTION CONTROL
COMPUTER CODES
COMPUTERIZED SIMULATION
CONTROL
DATA ANALYSIS
E CODES
EMISSION
EXHAUST GASES
FEDERAL TEST PROCEDURE
FLUIDS
GASEOUS WASTES
GASES
HYDROCARBONS
ORGANIC COMPOUNDS
POLLUTION
POLLUTION CONTROL
RECOMMENDATIONS
SENSITIVITY ANALYSIS
SIMULATION
VEHICLES
WASTES