Page 33 - Separation process engineering

vapor velocity through holes, Eq. (10-29), ft/s
v
o,bal
velocity where valve is balanced, Eq. (10-36)

V , V B
A
component transfer velocities, Eqs, (15-15e, f)
v ref

reference or basis velocity, Eqs. (15-15c, d)

v y

vertical velocity
V
vapor flow rate, kmol/h or lbmol/h

V i

molal volume Eq. (13-1)
V A

3
molar volume solute at normal boiling point, m /kmol
V
liq,tank
volume of liquid in tank, m 3

V max
maximum vapor flow rate

V mixer

volume of liquid in mixing tank, m 3

V settler

volume settler, m 3
V tank

volume tank, m 3

V surge

surge volume in flash drum, Eq. (2-68), ft 3
VP

vapor pressure, same units as p
w

plate width, m
W
L
liquid flow rate, kg/h or lb/h

W L

2
2
liquid mass flux, lb/s ft or lb/h ft , (Chapter 16)
W V