PID Temperature Control of Demineralized Water Tank

Abstract

This paper presents a temperature control of demineralized water tank system, which is widely used in industrial processes. Theoretical modeling of temperature demineralized water tank has been study by applying mass and energy balance. Results of model have been compared with experimental data. PID controller is used to control the temperature inside the process tank within operating condition. Ziegler-Nichols and Tyreus-Luyben have been used to find parameters (proportional gain, integral time and derivative time) of PI and PID controller. Integral Absolute Error (IAE) and Integral Square Error (ISE) are used to compare between performances of the controllers. The results show that PID Controller gives better performance than PI Controller for the temperature control system.