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## procsel.gms:

#### References:

• GAMS Development, GAMS Model Library.
• Kocis, G R, and Grossmann, I E, Relaxation Strategy for the Structural Optimization of Process Flow Sheets. Industrial and Engineering Chemical Research 26, 9 (1987), 1869-1880.
• Original source: GAMS model procsel.gms from Gams Model Library

Point: p1
Best known point (p1): Solution value -1.92 (global optimum, BARON certificate)

\$offlisting * MINLP written by GAMS Convert at 04/18/01 15:19:45 * * Equation counts * Total E G L N X * 8 5 0 3 0 0 * * Variable counts * x b i s1s s2s sc si * Total cont binary integer sos1 sos2 scont sint * 11 8 3 0 0 0 0 0 * FX 0 0 0 0 0 0 0 0 * * Nonzero counts * Total const NL DLL * 26 24 2 0 * * Solve m using MINLP minimizing objvar; Variables x1,x2,x3,x4,x5,x6,x7,b8,b9,b10,objvar; Positive Variables x1,x2,x3,x4,x5,x6,x7; Binary Variables b8,b9,b10; Equations e1,e2,e3,e4,e5,e6,e7,e8; e1.. - 0.9*x6 + x7 =E= 0; e2.. exp(x3) - x1 =E= 1; e3.. exp(0.833333333333333*x4) - x2 =E= 1; e4.. - x3 - x4 - x5 + x6 =E= 0; e5.. x7 - 2*b8 =L= 0; e6.. x3 - 4*b9 =L= 0; e7.. x4 - 5*b10 =L= 0; e8.. 1.8*x1 + 1.8*x2 + x3 + 1.2*x4 + 7*x5 - 11*x7 + 3.5*b8 + b9 + 1.5*b10 - objvar =E= 0; * set non default bounds x7.up = 1; \$if set nostart \$goto modeldef * set non default levels * set non default marginals \$label modeldef Model m / all /; m.limrow=0; m.limcol=0; \$if NOT '%gams.u1%' == '' \$include '%gams.u1%' \$if not set MINLP \$set MINLP MINLP Solve m using %MINLP% minimizing objvar;