Wednesday, 16:15 - 16:40 h, Room: MA 415


Stephania Hokenmaier
Optimization with discontinuities and approximations in process engineering

Coauthor: Barbara Kaltenbacher


Process simulators are indispensable in the daily work of process engineers. The Engineering Division of The Linde Group, which is one of the world leading companies in planning and building process plants, has been developing the in-house process simulation program OPTISIM\raisebox{.5ex}{®} for the simulation and optimization of chemical processes. Increasing demands on the optimizer concerning problem size, efficiency and robustness, especially with the occurance of discontinuities and the use of approximations during simulation and optimization, lead to a closer look towards new optimization methods. In this context the global convergence of the filter line search of Biegler and Wächter, used in the optimizer IPOPT, was considered under the assumption of perturbed equality constraints and derivatives, which models their approximate evaluation as well as to some extent also the discontinuities. Furthermore some numerical results will be shown.


Talk 3 of the invited session Wed.3.MA 415
"Optimization applications in industry V" [...]
Cluster 19
"PDE-constrained optimization & multi-level/multi-grid methods" [...]


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