STEADY-STATE STUDY ON THE TRANSFORMATION METHOD OF DISTILLATION CONTROL-STRUCTURES

The aim of this paper is to check the applicability of the HAGGBLOM an d WALLER [2,3] transformation method for distillation control structur es if an error in the base structure of the transformation method is p resent. In this study the [L,V] control scheme is selected as the base structure. The transformation method is tested on four different sepa ration problems. The data of the non base structures obtained by the t ransformation method are compared to the corresponding data determined by the full scale model. The transformation method Provides adequate results at steady-state conditions. By the error propagation method an attempt is made to estimate the error of the data transformed. In the problems investigated the error propagation method overestimates the error of the transformation.