Luyben and Vinante developed a distillation column model relating temperatures on the 4th and 17th trays from

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Luyben and Vinante developed a distillation column model relating temperatures on the 4th and 17th trays from the bottom of the column (T4, T17,) to the reflux ratio R and the steam flow rate to the reboiler S:imageCompare the closed-loop set-point changes that result from the T17-R/T4-S pairing and the Ziegler- Nichols continuous cycling method in Chapter 12.Consider two cases:(a) A set-point change is made in each loop with the other loop in manual.(b) The set-point changes arc made with both controllers inautomatic.

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Process Dynamics And Control

ISBN: 978-0471000778

2nd Edition

Authors: Dale E. Seborg, Thomas F. Edgar, Duncan A. Mellich

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