Fouling detection in a heat exchanger by observer of Takagi-Sugeno type for systems with unknown polynomial inputs

Authors:
Sabrina Delrot;Thierry Marie Guerra;Michel Dambrine;FrançOis Delmotte
Affiliations:
Univ. de Valenciennes et du Hainaut-Cambrésis, LAMIH, F-59313 Valenciennes, France and CNRS, UMR 8201, 59313 Valenciennes, France;Univ. de Valenciennes et du Hainaut-Cambrésis, LAMIH, F-59313 Valenciennes, France and CNRS, UMR 8201, 59313 Valenciennes, France;Univ. de Valenciennes et du Hainaut-Cambrésis, LAMIH, F-59313 Valenciennes, France and CNRS, UMR 8201, 59313 Valenciennes, France;LG2IA, Faculté des Sciences Appliquées, TechnoParc Futura, F-62400 Béthune, France
Venue:
Engineering Applications of Artificial Intelligence
Year:
2012

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Abstract

This paper proposes a new method for fouling detection in a heat exchanger. It is based on the modeling of the system in a fuzzy Takagi-Sugeno representation derived from a physical model. With this representation, the design of a fuzzy observer with unknown inputs of polynomial types is obtained via a LMI formulation. Main advantages of the proposed method are that neither specific sensor, excepted standard ones, nor special operating conditions such as steady state regime are required. Some realistic simulations show the efficiency of the proposed technique.