Page 36 - Separation process engineering

latent heat of vaporization, kcal/kg, Btu/lb, Btu/lbmol, etc.

μ

viscosity, cp or Pa·s = kg/(m s)
μ w

viscosity of water, cp
ρ L

3
3
liquid density, g/cm or lb/ft or kg/m 3
ρ V

vapor density
σ,γ

surface tension, dynes/cm or interfacial tension

dimensionless distance, Eq. (15-14a)
χ

term defined in Eq. (13-49)
ϕ , ϕ
c d
volumetric fraction of continuous and dispersed phases

ϕ d,feed

volumetric fraction of dispersed phase in feed
φ

liquid phase packing parameter, Eq. (16-38)
φ B

solvent interaction parameter, Eq. (15-23b)

φ dc
relative froth density in downcomer, Eq. (10-29)

ϕ e

effective relative froth density, Eq. (16-109d)
ψ

ρ water /ρ , Chapter 10
L
ψ
e/(e + L), fractional entrainment, Chapter 10

ψ
packing parameter for gas phase, Eq. (16-37)

Ω D

collision integral, Table 15-2
μ μ D
C
viscosity of continuous and dispersed phases, Pa·s