Zorka Novak-Pintarič (Avtor), Zdravko Kravanja (Avtor)

Povzetek

Abstract 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.

Ključne besede

kemijska procesna tehnika;sinteza procesov;MINLP;mešano celoštevilčno nelinearno programiranje;fleksibilnost;operabilnost;kontrlabilnost;chemical processing;process synthesis;mixed integer nonlinear programming;flexibility;operability;controllability;steady state model;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UM FKKT - Fakulteta za kemijo in kemijsko tehnologijo
UDK: 66.02
COBISS: 8822038 Povezava se bo odprla v novem oknu
ISSN: 0098-1354
Št. ogledov: 1963
Št. prenosov: 80
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarne ključne besede: kemijska procesna tehnika;sinteza procesov;MINLP;mešano celoštevilčno nelinearno programiranje;fleksibilnost;operabilnost;kontrlabilnost;
URN: URN:SI:UM:
Strani: str. 1105-1119
Letnik: ǂVol. ǂ28
Zvezek: ǂiss. ǂ6/7
Čas izdaje: 2004
ID: 8718701