Diagnostic goal driven modelling and simulation of multiscale process systems

E. Németh, I. T. Cameron, K. M. Hangos

Research output: Contribution to journalArticle

13 Citations (Scopus)


A systematic goal-driven top-down modelling methodology is proposed that is capable of developing a multiscale model of a process system for given diagnostic purposes. The diagnostic goal-set and the symptoms are extracted from HAZOP analysis results, where the possible actions to be performed in a fault situation are also described. The multiscale dynamic model is realized in the form of a hierarchical coloured Petri net by using a novel substitution place-transition pair. Multiscale simulation that focuses automatically on the fault areas is used to predict the effect of the proposed preventive actions. The notions and procedures are illustrated on some simple case studies including a heat exchanger network and a more complex wet granulation process.

Original languageEnglish
Pages (from-to)783-796
Number of pages14
JournalComputers and Chemical Engineering
Issue number4
Publication statusPublished - Mar 15 2005



  • Coloured Petri nets
  • Granulation
  • Hierarchical Petri nets
  • Modelling goal
  • Multiscale models
  • Process modelling

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Computer Science Applications

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