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Evaluation and improvement of dynamic optimality in electrochemical reactors

IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi

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Title Evaluation and improvement of dynamic optimality in electrochemical reactors
 
Creator Vijayasekaran, B.
Basha, C.A.
 
Subject Pollution Control
 
Description A systematic approach for the dynamic optimization problem statement to improve the dynamic optimality in electrochemical reactors is presented in this paper. The formulation takes an account of the diffusion phenomenon in the electrode/electrolyte interface. To demonstrate the present methodology, the optimal time-varying electrode potential for a coupled chemical–electrochemical reaction scheme, that maximizes the production of the desired product in a batch electrochemical reactor with/without recirculation are determined. The dynamic optimization problem statement, based upon this approach, is a nonlinear differential algebraic system, and its solution provides information about the optimal policy. Optimal control policy at different conditions is evaluated using the best-known Pontryagin’s maximum principle. The twopoint boundary value problem resulting from the application of the maximum principle is then solved using the control vector iteration technique. These optimal time-varying profiles of electrode potential are then compared to the best uniform operation through the relative improvements of the performance index. The application of the proposed approach to two electrochemical systems, described by ordinary differential equations, shows that the existing electrochemical process control strategy could be improved considerably when the proposed method is incorporated.
 
Publisher Elsevier
 
Date 2005
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://cecri.csircentral.net/60/1/026-2005.pdf
Vijayasekaran, B. and Basha, C.A. (2005) Evaluation and improvement of dynamic optimality in electrochemical reactors. Electrochimica Acta, 51. pp. 200-207.
 
Relation http://cecri.csircentral.net/60/