COMPLEX MODEL OF THE EFFICIENCY OF RECTIFICATION PLATES.
1. CONCURRENT MOTION OF THE PHASES
V. N. Pavlechko

UDC 66.048.375

The mass exchange in concurrent motion of the phases 
and in total mixing of the liquid on a plate when the vapor and liquid 
leaving an ideal plate are in the equilibrium state is considered. 
The overestimated values of the efficiency of the plate in the existing 
Murphree and Hausen models are assumed to be predetermined by the 
conditions of the interrelationship of the ideal and real plates. 
A complex mass-exchange model is proposed in which the compositions 
of the flows in the ideal and real plates at a certain distance from 
the site of phase injection are equal. The model is compared with 
the existing Murphree and Hausen models, and the latter are established 
to be boundary cases of the former. Equality of the efficiencies in 
the liquid and the vapor is proved.

Belarusian State Technological University, Minsk, Belarus. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 74, No. 1, pp. 
50-56, January-February, 2001. Original article submitted 
January 26, 2000; revision submitted May 31, 2000.

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