Vapor Pressure Equations for Characterizing Automotive Fuel Behavior Under Hot Fuel Handling Conditions 971650
A simple set of equations has been developed to characterize automotive fuel behavior in fuel tanks, fuel vapor systems and fuel rails, particularly under hot weather conditions. The system of equations links the vapor pressure P, the temperature T, and the mass fraction evaporated Z. Parameters are determined empirically from laboratory vapor pressure and distillation tests. With appropriate values for heat capacity, heat of vaporization, and vapor composition, the equations can be used to estimate upper flammability limits, fuel weathering under hot fuel handling conditions, pressure rise in tanks, and evaporative vapor generation. The equations were developed as part of a larger fuel vapor system model.
Citation: Lavoie, G. and Smith, C., "Vapor Pressure Equations for Characterizing Automotive Fuel Behavior Under Hot Fuel Handling Conditions," SAE Technical Paper 971650, 1997, https://doi.org/10.4271/971650. Download Citation
Author(s):
George A. Lavoie, Carol S. Smith
Affiliated:
Ford Motor Co.
Pages: 12
Event:
International Spring Fuels & Lubricants Meeting & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Factors Influencing Emissions and Emissions Formation Processes-SP-1275, SAE 1997 Transactions - Journal of Fuels and Lubricants-V106-4
Related Topics:
Fuel tanks
Weather and climate
Pressure
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