caa a22 4500 469126388 CHVBK 20180323133151.0 cr unu---uuuuu 170328e19920701xx s 000 0 eng 10.1007/BF02705128 doi (NATIONALLICENCE)springer-10.1007/BF02705128 Lee In-Beum Automation Research Center, Pohang Institute of Science and Technology, P.O. Box 125, 790-600, Pohang, Korea aut Synthesis of heat exchanger networks with minimum number of units for pinched problems [Elektronische Daten] [In-Beum Lee] An algorithmic-evolutionary synthesis procedure is studied for generating the maximum energy recovery (MER) and minimum number of units (MNU) networks with the goal of achieving the global optimum network under pinch points. For pinched problems, sufficient conditions are proposed for determining the minimum number of units. These sufficient conditions, together with heuristic matching rules, are used to generate an initial feasible composite MNU/MER network. A split-merge network structure is introduced in order not to violate the prescribed minimum approach temperature. This initial network is successively evolved to obtain improved networks by limited heat load redistribution resulting from the pinch point. The properties and limitations of the constructions and procedures are established and the effectiveness of the heuristic procedure is illustrated with literature test problems. Korean Institute of Chemical Engineering, 1992 Korean Journal of Chemical Engineering Springer-Verlag 9/3(1992-07-01), 117-127 0256-1115 9:3<117 1992 9 11814 https://doi.org/10.1007/BF02705128 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02705128 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Lee In-Beum Automation Research Center, Pohang Institute of Science and Technology, P.O. Box 125, 790-600, Pohang, Korea aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer-Verlag 9/3(1992-07-01), 117-127 0256-1115 9:3<117 1992 9 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer