Perancangan Sistem Kendali Suhu Menggunakan Metode Internal Model Control Berbasis PID Pada Heat Exchanger Central Gathering Station 5 PT Chevron Pacific Indonesia

Saputra, Gigih Edy (2015) Perancangan Sistem Kendali Suhu Menggunakan Metode Internal Model Control Berbasis PID Pada Heat Exchanger Central Gathering Station 5 PT Chevron Pacific Indonesia. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Heat Exchanger (HEX) merupakan sebuah sistem penukar panas yang digunakan untuk memanaskan production fluid yang berasal dari sumur-sumur minyak. Sistem kerja Heat Exchanger adalah memanfaatkan prinsip konduksi dan konveksi. Pemanas yang digunakan pada Heat Exchanger Central Gathering Station 5 adalah steam yang masuk ke tube sedangkan fluida yang dipanaskan adalah production fluid di shell. Permasalahan utama adalah temperature output production fluid tidak dikontrol sehingga mengakibatkan output production fluid tidak sesuai dengan set point dan terjadi osilasi yang cukup besar. Dengan menggunakan pendekatan FOPDT maka akan didapatkan model dari proses berdasarkan hasil uji open loop dan model dari disturbances berdasarkan uji disturbances di software Hysys 8.4. Simulasi IMC-PID dengan menggunakan software Hysys 8.4 didapatkan nilai lamda yang terbaik adalah λ=1 dengan nilai Kc=1.07, Ti=1.18 dan Td=0.0278. Dari hasil analisa performansi model IMC-PID berdasarkan perubahan set point didapatkan nilai settling time 900 second, IAE= 360.46 dan maksimum overshoot 2.893%. Sedangkan berdasarkan perubahan disturbances didapatkan hasil settling time=520 second, IAE sebesar 100.3773 dan maksimum overshoot sebesar 3.7797%. ======================================================================================================= Heat Exchanger (HEX) is a system for heating production fluid from wells. Heat Exchanger advantage the convection and conduction principal for working. In this case, steam in tube side become a fluid for heating production fluid in shell side on Central Gathering Station 5. The major problem is temperature output production Fluid not be controlled, and the result is production fluid output temperature not appropriate with set point and consist oscillation in the response. The plant model and disturbances model can approach with FOPDT method from the tune test and disturbances test experiment in Hysys 8.4. Simulation IMC-PID model with Hysys 8.4 software have a result that the best value of lamda filter is λ=1, Kc=1.07, Ti=1.18 and Td=0.0278. Based on the performace test of set point, we can get settling time 900 second, IAE= 360.46 and maksimum overshoot 2.893%. And from IMC-PID performance test based disturbances changes, it have rseults settling time=520 second, IAE 100.3773 and maksimum overshoot 3.7797%.

Item Type: Thesis (Undergraduate)
Additional Information: RSF 629.831 2 Sap p
Uncontrolled Keywords: Heat Exchanger, FOPDT, IMC-PID
Subjects: Q Science > QC Physics > QC 611.97.T46 Temperature effects. Including transition temperature
T Technology > TJ Mechanical engineering and machinery > TJ223 PID controllers
Divisions: Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User: Yeni Anita Gonti
Date Deposited: 21 Mar 2020 09:32
Last Modified: 21 Mar 2020 09:32
URI: https://repository.its.ac.id/id/eprint/75522

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