PERMEABILITY OF A MEMBRANE WITH EXTERNAL-DIFFUSIONAL 
ESISTANCE TAKEN INTO ACCOUNT

V. I. Baikov and I. Yu. Kostareva

UDC 66.064

An ordinary, nonlinear, first-order differential equation 
that describes the permeability of a membrane with the external diffusional 
resistance taken into account is obtained. Based on this equation, 
the rate of penetration as a function of the physical properties of 
a gas mixture and the parameters of the membrane element have been 
found.

A. V. Luikov Heat and Mass Transfer Institute, National 
Academy of Sciences of Belarus, 15 P. Brovka Str., Minsk, 220072, 
Belarus. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 78, 
No. 2, pp. 73-75, March-April, 2005. Original article submitted 
May 5, 2004.