Time super targeting: Planning of optimal HEN design accounting energy prices

Present work delivers the methodology Time Super Targeting (TST) for optimum solution of heat exchangers networks (HEN) in dynamic when the energy prices are changed. Optimum solution can be found for time slice when the retrofit is completed taking into account the decision-making period of enterprises. Sensitivity analysis of finished solution for HEN retrofit was performed and flexibility of changes are analysed. Several representative case studies were developed for different industries to show methodology application. The results of this work can be used for analysis of reactor, separation, utility systems to update the Process Integration methodologies as well as for Total Site Integration.