Vapor Mass Velocity of Tray Type Tower
Vapor mass velocity in a tray-type tower is the mass of vapor that flows through a specific area cross-section of the tower per unit of time.
Key Points about Tray Towers
- Vapor mass velocity is needed in determining the capacity and efficiency of the tray column.
- It affects the tray efficiency, flooding point, and pressure drop.
- Higher vapor mass velocities may lead to entrainment and flooding, while lower velocities may result in weeping or poor mass transfer.
Vapor Mass Velocity of Tray Type Tower Formula |
||
\( w \;=\; 3600 \; k_g \; [\; ( \rho_l - \rho_g) \; \rho_g \;] ^{0.5} \) | ||
Symbol | English | Metric |
\( w \) = Vapor Mass Velocity of Tray Type Tower | \(lbm\;/\;ft^2-h\) | - |
\( k_g \) = Sizing Constant | \(ft\;/\;sec\) | - |
\( \rho_l \) = Liquid Density | \(lbm\;/\;ft^3\) | - |
\( \rho_g \) = Gas Density | \(lbm\;/\;ft^3\) | - |
Tags: Refinery