Hermawan, Yulius Deddy (2017) Perancangan Sistem Pengendalian Laju Alir Cairan dengan Aliran Kickback sebagai Variabel Termanipulasi Design of Flow Control System with A Kickback Flow as A Manipulated Variable. EKSERGI, 14 (2). pp. 23-28. ISSN 1410-394X
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Abstract
The open loop experiment of water flow dynamic in pipe has been done in
laboratory. Pump was used to flow water in pipe. Part of liquid from discard of pump was
recycled back to the suction of pump (kickback) and adjusted to control the liquid flow to the
next process. The open loop laboratory experiment produced the steady state parameters; they
were discard flowrate
=16.6 [L/min], kickback flowrate
=5.8 [L/min], and liquid flowrate
to the next process =10.8 [L/min]. These steady state parameters were then used as the initial
value for closed loop simulation with computer programming. This study has proposed the
liquid flow control configuration by manipulating the kickback flow. Proportional Integral (PI)
was proposed to control the flow and Routh-Hurwitz (RH) stability criterion was chosen to
predict the range of the controller gain (Kc) that gives stable response. The closed loop model
was solved analytically with Laplace method for both servo and regulatory problems. The set
point change of flow and disturbance were made based on step function. The scilab software
was used to do closed loop simulation. Based on RH stability criterion, the controller gain
should be negative in order to give stable response. The closed loop simulation showed that by
using controller gain Kc=–0.5 and integral time constant I=0.3 [min], stable and fast response
with Integral Absolute Error (IAE) near to zero (0,0022) could be achieved.
Keywords: flow control; kickback; PI; Routh-Hurwitz; stable.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | flow control; kickback; PI; Routh-Hurwitz; stable. |
| Subjek: | T Technology > T Technology (General) |
| Divisions: | x. Faculty of Engineering, Science and Mathematics > School of Chemistry |
| Depositing User: | Dr Y. Deddy Hermawan |
| Date Deposited: | 09 Jun 2021 05:10 |
| Last Modified: | 09 Jun 2021 06:33 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/24890 |
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