New hybrid method for mass exchange network optimisation

Abdulfatah M. Emhamed, Zoltan Lelkes, Endre Rev, Tivadar Farkas, Zsolt Fonyo, Duncan M. Fraser

Research output: Contribution to journalArticle

2 Citations (Scopus)


A new hybrid optimisation method is presented, that is fairly robust and can be accomplished in an automatic way. The main idea is using integer cuts and bounds, calculated based on driving force plot analysis, for the lean streams to decrease the possibility of being trapped in local optimum. A new initial solution is constructed only if the MINLP solution is infeasible, otherwise the best solution found earlier is used. In consequence, the MINLP model changes in the iteration steps. The iteration is stopped if the total annual cost (TAC) in the solution is less than 1.1 *TACtarget.

Original languageEnglish
Pages (from-to)877-882
Number of pages6
JournalComputer Aided Chemical Engineering
Issue numberC
Publication statusPublished - Dec 1 2005



  • Mass Exchange Networks
  • Optimisation
  • Pinch Technology

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Computer Science Applications

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