COMPLEX MODEL OF THE EFFICIENCY OF RECTIFICATION PLATES. 4. CROSS MOTION OF PHASES
V. N. Pavlechko UDC 66.048.375 A model of mass transfer in the cross motion of phases is proposed in which the compositions of the flows on ideal and real plates at a certain distance h for a vapor and h1 for a liquid from the site of their injection are equal. The composition of the vapor after a plate is equal to the average value of the compositions of the vapor after the initial and final portions in the direction of liquid motion that, for an ideal plate, are in equilibrium with, respectively, the arriving and discharging liquid. Dependences of the efficiency in the vapor and liquid phases on the parameters of a real plate that are identical and confirm the equality of these efficiencies are derived. An analysis of particular cases of the model for h = h1 and h = h1 = 0.5 and for their boundary values when they are equal to zero or to unity is made. Corresponding relations of the efficiencies are obtained. Belarusian State Technological University, Minsk, Belarus. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 74, No. 2, pp. 43-47, March-April, 2001. Original article submitted January 1, 2000; revision submitted August 21, 2000. JEPTER74920200111 JEPTER7492011