Chen C.-L.Liao H.-L.Jia X.-P.Ciou Y.-J.Lee J.-Y.2019-05-212019-05-21201018761070https://scholars.lib.ntu.edu.tw/handle/123456789/409670This paper presents a general mathematical model to synthesize heat-integrated water-using networks that potentially lead to significant water and energy savings. The formulation is based on superstructures of water-using (WUN) and heat exchanger networks (HEN) for all possible flow connections and stream matches. The superstructure of WUN consists of schematic diagrams for water-using units, regeneration units, and buffer tanks, while the superstructure of HEN is a stage-wise representation. In particular, a set of constraints are incorporated in the model for the automatic identification of hot and cold streams from a water system. An example is used to illustrate the proposed approach, where the elimination of regeneration recycling will be also considered. ? 2010 Taiwan Institute of Chemical Engineers.Heat exchanger network (HEN)Mathematical optimizationSuperstructureSynthesisWater-using network (WUN)[SDGs]SDG7Automatic identification; Buffer tanks; Cold streams; Energy saving; Heat exchanger network; In-process; Mathematical optimizations; Regeneration recycling; Water system; Water using network; Automation; Electronic data interchange; Energy conservation; Mathematical models; Operations research; Optimization; Schematic diagrams; Heat exchangersjournal article10.1016/j.jtice.2010.04.0042-s2.0-77954657805https://www.scopus.com/inward/record.uri?eid=2-s2.0-77954657805&doi=10.1016%2fj.jtice.2010.04.004&partnerID=40&md5=1f92769277b6bdd2e0241012ae0b6519