Dynamic Simulation and Composition Control in A 10 L Mixing Tank

Hermawan, Yulius Deddy and Haryono, Gogot (2012) Dynamic Simulation and Composition Control in A 10 L Mixing Tank. Jurusan Teknik Kimia FT UNDIP.

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Abstract

The open loop experiment of composition dynamic in a 10 L mixing tank has been successfully done in laboratory. A 10 L tank was designed for mixing of water (as a stream-1) and salt solution (as a stream-2 with salt concentration, c2¬ constant). An electric stirrer was employed to obtain uniform composition in tank. In order to keep the liquid volume constant, the system was designed overflow. In this work, 2 composition control configurations have been proposed; they are Alternative-1 and Alternative-2. For Alternative-1, the volumetric-rate of stream-1 was chosen as a manipulated variable, while the volumetric-rate of stream-2 was chosen as a manipulated variable for Alternative-2. The composition control parameters for both alternatives have been tuned experimentally. The volumetric-rate of manipulated variable was changed based on step function. The outlet stream’s composition response (c3) to a change in the input volumetric-rate has been investigated. This experiment gave Proportional Integral Derivative (PID) control parameters. The gain controllers Kc [cm6/(gr.sec)] for Alternative-1 and Alternative-2 are –34200 and 40459 respectively. Integral time constant (I) and Derivative time constant (D) for both alternatives are the same, i.e. I = 16 second, and D = 4 second. Furthermore, closed loop dynamic simulation using computer programming was also done to evaluate the resulted tuning parameters. The developed mathematical model of composition control system in a mixing tank was solved numerically. Such mathematical model was rigorously examined in Scilab software environment. The results showed that closed loop responses in PID control were faster than those in P and PI controls.

Item Type:	Other
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User:	Dr Y. Deddy Hermawan
Date Deposited:	11 Apr 2022 00:54
Last Modified:	11 Apr 2022 00:55
URI:	http://eprints.upnyk.ac.id/id/eprint/29439

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