Nonlinear Observer Based Fault Diagnosis for an Innovative Intensified Heat-Exchanger/Reactor

  • Xue Han
  • Zetao LiEmail author
  • Boutaib Dahhou
  • Michel Cabassud
  • Menglin He
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 582)


This paper describes an application of a fault detection and isolation (FDI) scheme for an intensified Heat-exchanger (HEX)/Reactor, where the exothermic chemical reaction of sodium thiosulfate oxidation by hydrogen peroxide is performed. To achieve this, precise estimation of all states of HEX/Reactor, including temperatures and concentrations of different reactants, as well as process fault detection and isolation is completed by a high gain observer. Then, process fault identification is achieved by several banks of interval filters. Finally, an intensified HEX/reactor is used to validate the effectiveness of the proposed strategy. Simulation results are shown to illustrate the performance of the algorithm presented.


Fault diagnosis Fault identification High gain observer Parameter interval filter HEX/reactor 



This work was supported by China Scholarship Council (CSC); the National Nature Science Foundation of China under Grant 61963009; the Department of Science and Technology of Guizhou (grand numbers [2015]4014, [2015]11, [2016]2302, [2019]2154); and the Department of Education of Guizhou (grand numbers ZDXK [2015]8).


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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Xue Han
    • 1
    • 2
  • Zetao Li
    • 1
    Email author
  • Boutaib Dahhou
    • 2
  • Michel Cabassud
    • 3
  • Menglin He
    • 1
    • 2
  1. 1.Electrical Engineering CollegeGuizhou UniversityGuiyangChina
  2. 2.LAAS-CNRS, Université de Toulouse, CNRS, INSA, UPSToulouseFrance
  3. 3.Laboratoire de Génie ChimiqueUniversité de Toulouse, CNRS/INPT/UPSToulouseFrance

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