OPTIMAL RETROFIT DESIGN FOR IMPROVING PROCESS FLEXIBILITY IN NONLINEAR-SYSTEMS .1. FIXED DEGREE OF FLEXIBILITY
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In this paper the problem of determining minimum cost modifications for redesigning existing process flowsheet systems so as to achieve a specified level of flexibility is addressed. A novel computational strategy for nonlinear models is proposed, which relies on the iterative solution of an optimal design formulation that features as constraints a relaxation of the feasibility function for the specified region of flexibility. Special structures of nonlinear models are exploited, in particular models that are bilinear in the uncertain parameters and control variables. Examples are presented to illustrate the proposed procedures. 1989.
COMPUTERS & CHEMICAL ENGINEERING
author list (cited authors)
PISTIKOPOULOS, E. N., & GROSSMANN, I. E.
complete list of authors
PISTIKOPOULOS, EN||GROSSMANN, IE