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  • MINLP retrofit of heat exchanger networks comprising different exhanger types
    Soršak, Aleksander, 1966- ; Kravanja, Zdravko
    This paper describes a simultaneous MINLP optimization model for the retrofit of heat exchanger networks (HEN), comprising different exchanger types. This model is based on the stage-wise ... superstrucutre of HEN [Comput. Chem. Eng. 14 (1990) 1165], extended for retrofit and different exchanger types. Each potential match in the superstructure is now replaced by a match superstructure comprisingČ double pipe (DP), shell and tube (U tubes, ST), andplate and frame exchangers (PF). The operability constraints for the different exchanger types are modeled by the convex hull formulation of disjunctions, nonlinear terms are modeled only within the objective function and additional constraints are included to obtain feasible temperature distribution. Several examples are presented to illustrate the efficiency and advantages of the proposed multi-type model.
    Source: Computers & chemical engineering. - ISSN 0098-1354 (Vol. 28, 1/2, 2004, str. 235-251)
    Type of material - article, component part
    Publish date - 2004
    Language - english
    COBISS.SI-ID - 9409302