International Journal of Nonlinear Analysis and Applications

A modified optimization method for optimal control problems of continuous stirred tank reactor

Document Type : Research Paper

Authors

1 Department of Mathematics, Payame Noor University, Tehran, P.O. Box. 19395-3697, Iran

2 Department of Applied Mathematics‎, ‎University of Science and Technology of Mazandaran‎, ‎Behshahr‎, ‎Iran

3 Department of Avionics‎, ‎Aerospace Research Institute‎, ‎Tehran‎, ‎14665-834‎, ‎Iran

4 Department of Mathematics‎, ‎Payame Noor University‎, ‎Tehran‎, ‎P.O‎. ‎Box‎. ‎19395-3697‎, ‎Iran

Abstract

‎Continuous stirred tank reactor (CSTR) is an important and constructive part in various chemical and process industries and therefore it is necessary to control the process in optimal temperature and concentration conditions. Because of the nonlinear nature and limits of the control input‎, ‎solving this problem is very difficult. To achieve a sub-optimal control policy for chemical processes‎, ‎we focused on a new construction model‎.  Then‎, ‎a two-phase algorithm‎, ‎denoted as modified sequential general variable neighborhood search (MSGVNS) algorithm based on three local searches that use efficient neighborhood interchange has been employed to solve CSTR problems numerically. The results of the proposed method show that its convergence to the exact solution is achieved by the accuracy comparable to other numerical algorithms in few times‎.

Keywords

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International Journal of Nonlinear Analysis and Applications
Volume 12, Issue 1
May 2021
Pages 445-459
  • Receive Date: 19 July 2020
  • Revise Date: 23 September 2020
  • Accept Date: 29 September 2020