CRC-Radian evaporative emissions model: EVAP 2. 0 annual report, 1988

Technical Report · Fri Dec 29 04:00:00 EST 1989

OSTI ID:6730587

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

In 1986, Radian initiated development of an improved vehicle evaporative emissions model -- a model that expands upon the present EPA MOBILE4 to incorporate key factors affecting evaporative emissions rates. The 1988 annual report describes model improvements, including: the relationship between tank temperature and ambient temperature; a user interface to allow the input of user-selected multiple driving patterns; improved estimates of controlled and uncontrolled diurnal emissions for 1981+ vehicles and older model year vehicles; inclusion of additional to update diurnal and hot-soak emission factors; and to update the effect of fuel tank level on hot-soak and diurnal emissions; investigation of the relationships between driving behavior and fuel tank temperature.

• Research Organization: Radian Corp., Austin, TX (USA)
• OSTI ID: 6730587
• Report Number(s): PB-90-223751/XAB; DCN--89-245-052-04
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION
CONVECTION
DOCUMENT TYPES
ENERGY TRANSFER
EVAPORATION
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HEAT TRANSFER
MASS TRANSFER
MATHEMATICAL MODELS
PHASE TRANSFORMATIONS
POLLUTION
PROGRESS REPORT
VEHICLES
WASTES