Design of wastewater treatment networks

17 Dezembro 2018, 09:30 Pedro Castro

Mixed-integer quadratically constrained problems (MIQCPs) as an important class of mixed-integer nonlinear programming problems (MINLPs). Relaxation techniques for non-convex bilinear terms: (I) McCormick envelopes (LP relaxation); (ii) Piecewise McCormick envelopes (MILP); (iii) Multiparametric Disaggregation (MILP).

The wastewater treatment network (WTN) design problem. NLP formulation and its three relaxation models (of different strengths). Illustration by solving a WTN problem in GAMS. Comparison of performance to commercial global optimization solver BARON.