RAPID-N

Property Estimator

Name	Evaporation rate from released quantity and RMP liquid factor
Property	Evaporation Rate
Type	Function
Function	`[Qr:lb]pow([u:m/s], 0.78)[RMP_LF]*[RMP_DF:ft2/lb]`
Unit	lb/min
Validity Conditions	Pool Depth: 1 cm
Precedence	Auto
Disabled	No
References	U.S. EPA, "Risk Management Program Guidance for Offsite Consequence Analysis", 1999
Notes	Generalized equation of evaporation rate from a liquid pool by using liquid factors. See U.S. EPA (1999), Equation 3-3 (section 3.2.2, page 3-5) and Equation 3-4 (section 3.2.2, page 3-6) for ambient and elevated temperature worst-case scenario equations, respectively. Alternative scenario versions are Equation 7-8 and 7-9 (section 7.2.3, page 7-11).
Access	Public