COMPLEX MODEL OF THE EFFICIENCY OF RECTIFICATION PLATES.
2. COUNTERCURRENT MOTION OF THE PHASES
V. N. Pavlechko

UDC 66.048.375

Consideration is given to the mass exchange in countercurrent 
motion and ideal displacement of the phases on a plate when the vapor 
and incoming liquid that leave an ideal plate are in the equilibrium 
state. In the complex model of mass exchange proposed, the compositions 
of the flows on the ideal and actual plates coincide at a certain 
distance from the site of injection of the phases. Equality of the 
efficiencies in the vapor and liquid phases in countercurrent motion 
of them is proved. Certain particular and boundary cases of the complex 
model are considered. Corresponding relations of the efficiencies 
are derived. The countercurrent complex model and the fields of its 
application are analyzed.

Belarusian State Technological University, Minsk, Belarus. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 74, No. 1, pp. 
57-61, January-February, 2001. Original article submitted 
January 26, 2000; revision submitted May 31, 2000.

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