Studi Performansi Sistem Pengendalian Dan Safety Pada Unit Thermal Ventilation Thema Dry Tunnel TH009 PT. Ecco Tannery Indonesia

Candrawati, Galih (2009) Studi Performansi Sistem Pengendalian Dan Safety Pada Unit Thermal Ventilation Thema Dry Tunnel TH009 PT. Ecco Tannery Indonesia. Other thesis, Institut Teknologi Sepuluh Nopember Surabaya.

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Abstract

Unit Thermal Ventilation berfungsi sebagai unit pengolah udara pada mesin pengering kulit Thema Dry Tunnel TH009. Variabel yang horus dikendalikan adalah kelembaban dan temperatur udara di dalam tunnel. Agar proses bisa berjalan dengan aman, sistem pengendalian harus dapat mengontrol dengan baik dan sistem proteksi harus memiliki tingkat keamanan yang mencukupi. Sedangkan secara real plan yang terjadi selama ini adalah sistem tidak mampu berjalan secara optimal. Maka dalam penelitian ini, dilakukan suatu simulasi yang terintegrosi antara proses, sistem pengendalian dan sistem proteksi dari model yang telah didapatkan. Dari hasil simulasi didapatkan bahwa untuk sistem pengendalian kelembaban memiliki maximum overshot 4.25%, settling time 31 detik dan eror steady state 0.0375%. Sedangkan untuk sistem pengendalian temperature memiliki maximum overshot 7.5%, settling time 24 detik dan eror steady state 0.03%. Ketiga parameter tersebut mewakili performansi dari sistem kantrol kelembaban dan temperatur hasil simulasi yang tentunya lebih baik dari sistem yang telah ada. Lapisan proteksi dengan process design dan sistem pengendalian saja sebenarnya sudah cukup untuk menangani dinamika proses ini, namun sistem proteksi harus tetap terposang untuk mencegah kemungkinan ketika sistem kontrol sudah tidak mampu lagi menangani. Sistem proteksi memiliki nilai Safety Integrity Level (SJL) sebesar 1 dengan nilai Probability Failure on Demand (PFD) sebesar 6,628 x w·2 . Dari studi melalui simulasi ini, juga ditunjukkan efek failure rate instrumen terhadap respon sistem kontrol
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The Thermal Ventilation Unit functions as an air processing unit in the Thema Dry Tunnel TH009 leather drying machine. The variables that must be controlled are humidity and air temperature in the tunnel. In order for the process to run safely, the control system must be able to control it well and the protection system must have an adequate level of security. Meanwhile, in real terms, what has happened so far is that the system is not able to run optimally. So in this research, a simulation was carried out which integrated the process, control system and system protection of the model that has been obtained. From the simulation results it was found that the humidity control system had a maximum overshot of 4.25%, a settling time of 31 seconds and a steady state error of 0.0375%. Meanwhile, the temperature control system has a maximum overshot of 7.5%, settling time of 24 seconds and steady state error of 0.03%. These three parameters represent the performance of the simulated humidity and temperature control system which is certainly better than the existing system. Layers of protection with process design and control systems alone are actually sufficient to handle the dynamics of this process, but the protection system must remain in place to prevent the possibility that the control system is no longer able to handle it. The protection system has a Safety Integrity Level (SJL) value of 1 with a Probability Failure on Demand (PFD) value of 6.628 x w·2 . From this simulation study, the effect of the instrument failure rate on the control system response is also shown

Item Type:	Thesis (Other)
Additional Information:	RSF 628.9 Can s-1 2009
Uncontrolled Keywords:	kelembaban dan temperatur, sistem kontrol, sistem proteksi, HVAC; humidity and temperature, control systems, protection systems, HVAC
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3070 Automatic control
Divisions:	Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	EKO BUDI RAHARJO
Date Deposited:	22 Apr 2024 07:17
Last Modified:	22 Apr 2024 07:17
URI:	http://repository.its.ac.id/id/eprint/107896

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