Ningsih, Else Surya (2019) Perancangan Sistem Pengontrolan Structure Cascade Level Ketinggian Air Pada Steam Drum. Sarjana thesis, Universitas Brawijaya.
Abstract
Steam drum adalah suatu alat pada boiler yang mempunyai fungsi untuk menampung air dalam pembuatan uap , dimana temperaturnya cukup tinggi dan berupa campuran air serta uap. Air yang masuk pada steam drum akan berubah menjadi uap dikarenakan adanya pemanasan. Kualitas uap dipengaruhi oleh level air pada steam drum. Apabila level air terlalu rendah dapat menyebabkan panas berlebih (overheated) sehingga akan timbul kerusakan pada steam drum dan jika level air terlalu tinggi dapat menyebabkan pemisahan air dan steam tidak sempurna, kualitas uap yang dihasilkan kurang. Maka dari itu diperlukan suatu pengendalian level air yang dapat menjaga kondisi agar tetap stabil terhadap perubahan level yang terjadi pada steam drum. Boiler adalah bejana tertutup dimana panas pembakaran dialirkan ke air sampai terbentuk uap (steam). Perubahan level air yang terjadi pada steam drum dapat disebabkan oleh perubahan kebutuhan uap yang dibutuhkan pada proses produksi. Pada konsep system pengendalian proses, menjelaskan bahwa perubahan terjadi akibat kebutuhan proses produksi, dinyatakan sebagai load/disturbance pada system pengendalian proses. Maka dari itu dirancanglah suatu sistem pengendalian level yang menggunakan 3 element kontrol PID pada penelitian ini. Pada penelitian ini, dilakukan perancangan sistem pengendalian level. Untuk penentuan parameter kontrol PID yang dilakukan adalah dengan metode Ziegler-Nichols. Dari hasil Respon yang dihasilkan oleh sistem pengendalian level yang telah dirancang telah memenuhi kriteria kestabilan dengan memiliki settling time sebesar 1000 detik, maximum overshoot 0%, dan memiliki error steady state sebesar 0.077%.
English Abstract
Steam drum is a device on a boiler that has a function to hold water in the manufacture of steam, where the temperature is quite high and in the form of a mixture of water and steam. The water entering the steam drum will turn into steam due to heating. Steam quality is influenced by the water level in the steam drum. If the water level is too low it can cause excessive heat (overheated) so that damage to the steam drum will arise and if the water level is too high it can cause incomplete separation of water and steam, the quality of the steam produced is less. So from that we need a water level control that can keep the conditions stable to the level changes that occur in the steam drum. Boilers are closed vessels where burning heat is flowed into the water until steam is formed. Changes in water levels that occur in steam drums can be caused by changes in steam requirements needed in the production process. In the concept of process control systems, explaining that changes occur due to the needs of the production process, expressed as a load / disturbance in the process control system. Therefore a level control system was designed using 3 PID control elements in this study. In this study, a level control system was designed. To determine the parameters of PID control, the Ziegler-Nichols method is used. From the results of the response generated by the level control system that has been designed has met the stability criteria by having a settling time of 1000 seconds, 0% maximum overshoot, and having an error steady state of 0.077%.
Other obstract
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| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FT/2019/718/051906578 |
| Uncontrolled Keywords: | Steam Drum, Level, PID |
| Subjects: | 600 Technology (Applied sciences) > 621 Applied physics > 621.3 Electrical, magnetic, optical, communications, computer engineering; electronics, lighting > 621.31 Generations, modification, storage, transmission of electric power > 621.317 Control devices |
| Divisions: | Fakultas Teknik > Teknik Elektro |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 26 Aug 2020 04:24 |
| Last Modified: | 26 Aug 2020 04:24 |
| URI: | http://repository.ub.ac.id/id/eprint/171893 |
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