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A strategy for MINLP synthesis of flexible and operable processesNovak-Pintarič, Zorka ; Kravanja, ZdravkoAbstract This paper presents a sequential two-stage strategy for the stochastic synthesis of chemical processes in which flexibility and static operability (the ability to adjust manipulated ... variables) are taken into account. In the first stage, the optimal flexible structure and optimal oversizing of the process units are determined in order to assure feasibility of design for a fixed degree of flexibility. In the second stage, the structural alternatives and additional manipulative variables are included in the mathematical model in order to introduce additional degrees of freedom for efficient control. The expected value of the objective function is approximated in both stages by a novel method, which relies on optimization at the central basic point (CBP). The latter is determined by a simple set-up procedure based on calculations of the objective functionćs conditional expectations for uncertain parameters. The feasibility is assured by simultaneous consideration of critical vertices. The important feature of the proposed stochastic model is that its size depends mainly on the number of design variables and not on the number of uncertain parameters. The strategy is illustrated by two examples for heat exchanger network synthesis.Vir: Computers & chemical engineering. - ISSN 0098-1354 (Vol. 28, iss. 6/7, 2004, str. 1105-1119)Vrsta gradiva - e-članekLeto - 2004Jezik - angleškiCOBISS.SI-ID - 8822038
Avtor
Novak-Pintarič, Zorka |
Kravanja, Zdravko
Drugi avtorji
Foundations of Computer Aided Process Operations
Teme
kemijska procesna tehnika |
sinteza procesov |
MINLP |
mešano celoštevilčno nelinearno programiranje |
fleksibilnost |
operabilnost |
kontrlabilnost |
chemical processing |
process synthesis |
MINLP |
mixed integer nonlinear programming |
flexibility |
operability |
controllability |
steady state model
Vnos na polico
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Novak-Pintarič, Zorka | 11369 |
Kravanja, Zdravko | 06005 |
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