Page 142 - Modelling in Transport Phenomena A Conceptual Approach

122 CHAPTER 4. EVALUATION OF TRANSFER COEFFICIENTS

Overlines
per mole
N
per unit mass
Bracket
(4 average value of a

Superscript
sat saturation
Subscripts
A, B species in binary systems
b bulk
C transition from laminar to turbulent
ch characteristic
f film
i species in multicomponent systems
in inlet
LM log-mean
out out
Pb packed bed
W wall or surface
00 free-stream
Dimensionless Numbers
Archimedes number
Prandtl number
Nusselt number
Reynolds number
Reynolds number based on the diameter
Reynolds number based on the hydraulic equivalent diameter
Reynolds number based on the length
Reynolds number based on the distance x
Schmidt number
Shenvood number
Stanton number for heat transfer
Stanton number for mass transfer

REFERENCES

Bedingfield, C.H. and T.B. Drew, 1950, Analogy between heat transfer and mass
transfer. A psychometric study, Ind. Eng. Chem. 42, 1164.