Index of /skoge/publications/2000/HungarianJIC-SelfOpt

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I.J. Halvorsen, M. Serra and S. Skogestad, ``Evaluation of self-optimising control structures for an integrated Petlyuk distillation column'', Hung. J. of Ind.Chem., 28, 11-15 (2000).

Abstract.
In a Petlyuk distillation column, two extra degrees of freedom can be used for optimisation purposes. It has been reported that a typical energy saving of 30% is achievable with a Petlyuk distillation column, compared to conventional distillation arrangements. However, the optimal steady-state operation point can be difficult to maintain in practice. In this work we have studied the performance of some self-optimising control configurations for the Petlyuk distillation column in presence of disturbances and uncertainties. The results show that self-optimising control can be used to improve the robustness of optimal operation by adjusting a degree of freedom in a feed-back control loop by keeping a suitable measurement variable at a setpoint.

Note: This version may be slightly different from the finally published journal paper.