How to Use
Vapor Liquid Vertical Separator Sizing calculation estimates dimension of a two phase
vertical separator based on following input data.
- Vapor - Enter mass flowrate and density of vapor entering the separator
- Liquid - Enter mass flowrate and density of liquid entering the separator
- Enter Residence time
- NLL to LLL - Holdup time required for liquid to empty from Normal Liquid Level
(NLL) to Low Liquid Level (LLL)
- HLL to NLL - Surge time required for liquid to fill from Normal Liquid Level (NLL)
to High Liquid Level (HLL)
- K-Value - Estimates K Values for use in Souders Brown Equation
- GPSA Method - Enter operating pressure of separator and select any special
requirement from menu. It will estimate K Values based on GPSA method.
Droplet Size - Enter Vapor viscosity and droplet size. Calculator will find
Reynold's number and will use appropriate formula from Stoke's Law, Intermediate Law and Newton Law for
calculating Terminal Velocity.
User Input - Manually enter K Value in yellow highlighted cell.
- Design Velocity - Calculator will estimate terminal velocity based on Souders Brown Equation and
K value calculated above. Provide the percentage of terminal velocity to be used for design of separator.
- Nozzle Sizing - Enter the momentum criteria for sizing of Feed Inlet and
Vapor Outlet Nozzle. Liquid outlet is sized based on maximum liquid velocity desired.
L/D Ratio - Provide the L/D ratio desired. To meet L/D requirement, calculator increases diameter of the vessel resulting in
separator with smaller diameter mesh pads. It also increase Holdup height to meet the L/D ratio.