7th 7th International Conference On Advances In Mechanical Engineering, İstanbul, Türkiye, 24 - 26 Aralık 2024, ss.582-591
This paper presents the simulation and control design of continuous stirred tank reactors (CSTRs) for optimal performance in chemical processes. CSTRs, a fundamental component in chemical engineering, possess complex dynamics that require effective control strategies for operation. Due to the highly nonlinear nature of CSTR's dynamic characteristics, reactor temperature may deviate from the reference value. Chemical reactions are dependent on reactor temperature, and temperature variations can adversely affect product quality. Designing a control system to mitigate the effects of disturbances poses a challenging control problem. This study aims to optimize the performance of CSTRs using various simulation techniques and control design methodologies. Through Matlab Simulink, dynamic models of CSTRs are developed using material balance algorithms, and their behaviors are simulated under various operating conditions and disturbances. The control design stages of the CSTR system are executed, with PID control utilized to achieve desired set points and minimize process variability. The controller tuning results showed that with an optimal setting of KP = 285.821, τI = 171.154, and τD = 16.595, the system achieved a balance between fast response and minimal overshoot. This tuning effectively handled the CSTR dynamics, where the reaction rate constants significantly influence the system's responsiveness and stability.