Reynaldi, Ernest Novian (2019) Perancangan Sistem Pengendalian Temperatur New Cooler Pada Mp Compressor Di PT. Saka Indonesia Pangkah Limited Dengan Menggunakan Udara Sebagai Media Pendingin. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Berdasarkan data di lapangan, temperatur pada outlet kompresor cenderung tinggi yakni 165 oC, hampir menyentuh batas alarm high high yakni pada temperatur 170 oC, sehingga sangat berpotensi shut down. Pemilihan air cooled heat exchanger guna menurunkan temperatur gas hidrokarbon, berdasarkan cooling load dan properti udara sekitar sebagai media pendingin. Pemilihan air cooled heat exchanger harus memiliki luasan permukaan minimum sebesar 1431,327 m2. Kemudian dilakukan perancangan sistem pengendalian temperature air cooled heat exchanger dengan menambahkan pengendali mode PI dan PID yang diperoleh tuning metode Kurva Reaksi. Mode PI dan PID cocok karena mampu mencapai set point. Diperoleh hasil respon yang stabil, rise time 24 detik, settling time 35 detik % dan overshoot 0% pada mode PI dengan Kp sebesar 8,6 dan Ti sebesar 2,06 serta rise time 22,05 detik, settling time 43,2 detik dan overshoot 0% pada mode PID dengan Kp sebesar 8,6 Ti sebesar 2,06 dan Td sebesar 0,3449.
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According to the data, compressor’s outlet temperature tends to be high at 165 oC almost reached high-high alarm limit which is at 170 oC, so the shut down probability is high. Therefore it’s necessary to choose a cooling device namely air cooled heat exchanger to reduce hydrocarbon gas temperature. The selection of air cooled heat exchanger must have a minimum surface area of 1431,327 m2. After that, the design of a temperature control system was built by adding controller with PI and PID mode which tuned well by Reaction Curve method. Only PI and PID mode are suitable. So that Kp is obtained at 8,6 and Ti is at 2,06 on PI mode and Kp is 11,002, Ti is 2,195 and Td is 0,3449 on PID mode. The temperature control system simulation was done in Simulink software. The obtained output temperature tends to be stable, rise time is about 24 seconds, settling time is about 35 seconds to achieve an error of 2% and 0% overshoot on PI mode and rise time is about 22,05 seconds, settling time is about 43,2 seconds to achieve an error of 2% and 0% overshoot on PID mode.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSF 629.89 Rey p-1 2019 |
| Uncontrolled Keywords: | Air Cooled Heat Exchanger, Pemodelan, Sistem Pengendalian Temperatur, Rise Time, Settling Time, Overshoot |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ263 Heat exchangers T Technology > TJ Mechanical engineering and machinery > TJ223 PID controllers |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Ernest Novian Reynaldi |
| Date Deposited: | 20 Mar 2024 02:19 |
| Last Modified: | 20 Mar 2024 02:19 |
| URI: | http://repository.its.ac.id/id/eprint/67905 |
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