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In this paper, the robust design of the multi-loop PI controller for multivariable processes in the presence of the multiplicative input uncertainty is proposed. The paper deals with two major steps: as a first step, the analytical tuning rules of the multi-loop PI controller are derived from the basis of the generalized IMC-PID approach. Then, in the second step, the robust analysis is utilized for...
Distillation processes in the refinery and petrochemical industry consume 30%~60% of energy in a total chemical process and also require significant utility cost. In this perspective, a dividing wall column (DWC) has many appealing benefits of saving energy and reducing equipment cost. However, this technology is restricted to some separation processes. Many studies of DWC from academy and industries...
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