Journal ArticleDOI
Qualitative simulation of chemical process systems: Steady‐state analysis
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In this paper, the mauvais fonctionnement and l'effet des erreurs se propagent par causalite d'une variable a l'autre, en satisfaisant finalement les contraintes du procede en regime permanent.Abstract:
Dans une analyse qualitative le mauvais fonctionnement et l'effet des erreurs se propagent par causalite d'une variable a l'autre, en satisfaisant finalement les contraintes du procede en regime permanent. Les contraintes des series d'equations algebriques, sont representees par des equations de confluence stationnaires. La causalite est representee par le graphe oriente signe etendu (Extended Signed Directed Graph: ESDG)read more
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Device and method for detection and/or diagnosis of faults in a processes, equipment and sensors
TL;DR: In this paper, the authors proposed a method for the detection and diagnosis of faults in a process, equipment and sensors used to measure and control variables of a process either for single faults or multiple faults, based on residual calculation between measured values and values calculated by a plurality of parallel linear models.
Journal ArticleDOI
Artificial intelligence for process engineering — state of the art
G. Muratet,P. Bourseau +1 more
TL;DR: The fundamental work which is necessary before transforming process engineer reasoning into a computer program is presented and the main application domains are presented.
Journal ArticleDOI
Development of Systematic Framework for an Intelligent Decision Support System in Gas Transmission Network
TL;DR: The main objective of this paper is to develop a systematic framework for an online decision support system (DSS) in order to make the right decisions to get the GTN out of critical conditions (which cannot be handled by the plant controllers) smoothly.
Journal ArticleDOI
Fault Detection Approach Based on Fuzzy Qualitative Reasoning Applied to the DAMADICS Benchmark Problem
João Manuel Ferreira Calado,Fernando Carreira,Mário J. G. C. Mendes,J.M.G. Sá da Costa,M. Bartys +4 more
TL;DR: A computer assisted fault detection methodology based on a fuzzy qualitative simulation algorithm is described, applied to a pneumatic servomotor actuated control valve that is the benchmark problem of the EC RTN DAMADICS.
Journal ArticleDOI
Eliminating ambiguities in qualitative causal feedback
Claire Palmer,Paul W. H. Chung +1 more
TL;DR: In this article, a new modular approach is presented which overcomes this type of problem, which is used to resolve ambiguities within qualitative modelling. But this approach is not suitable for the case of unit-based qualitative models.