Capital and total cost targets for mass exchange networks

Source composite curve for waste reduction

“…(3), (4) and (9). As all constraints and the objective function are linear, this is a linear programming problem.…”

“…Pinch analysis has been fruitfully used in analyzing heat exchanger networks [3], utility systems [5,6], mass exchanger networks [7][8][9][10], water networks [11], distillation column [12][13][14][15][16], production planning [17,18], etc. Pinch analysis recognizes the importance of setting targets before design.…”

Synthesis of mass exchange network for batch processes—Part I: Utility targeting

“…Viewing the drawbacks of the mathematical formulation, Hallale (1998) presented MENS task by handling the capital cost target using on the pinch-based method. They ÿrstly deal with the special case of MEN, the water minimisation problem (Hallale and Fraser, 1998), which is ÿrstly introduced by Wang and Smith (1994).…”

Interval based MINLP superstructure synthesis of combined heat and mass exchanger networks

“…The task of attaining required concentrations in process streams in a cost efficient manner on the other hand is known as mass exchange network synthesis (MENS). Analogies have been drawn between these two kinds of networks in order to develop synthesis methods for MENs (El-Halwagi and Manousiouthakis, 1989;Hallale and Fraser, 2000;Szitkai et al, 2006). Fig.…”

“…The authors used a two-stage targeting approach: the first step involves targeting the minimum operating cost (MOC) network using a mixed integer nonlinear program (MINLP); the second step involves using the MOC solution of the first step to design a network featuring the minimum number of units. However, minimum number of unit solutions according to Hallale and Fraser (2000) do not always correspond to the optimum solution.…”