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New Developments and Capabilities in PROSYN
註釋Abstract: "This paper describes an improved, equation oriented user friendly version of the modular computer package PROSYN -- a mixed- integer nonlinear programming (MINLP) process synthesizer. A number of strategies are described and implemented for the Outer Approximation and Equality Relaxation algorithm (OA/ER) in order to reduce undesirable effects of unstructured nonconvexities in the master problem. These strategies include use of valid outer-approximations for splitters and mixers and various ways of handling the linearizations. An NLP initializer, model generator and a comprehensive PROSYN's library of models for basic process units and interconnection nodes, and a comprehensive library of basic physical properties for the most common chemical components have been developed and built in the PROSYN package. In this way PROSYN allows to solve problems at different levels of complexity: from the simple NLP flowsheeting up to the MINLP synthesis through modelling/decomposition (M/D) strategy and simultaneous heat integration including HEN costs. Applications with PROSYN are demonstrated with several example problems."