Putri, Intan Parliani (2019) Desain Plantwide Contro (PWC) pada Petroleum Refining Process. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kebutuhan manusia akan energi tidak pernah habis, bahkan meningkat seiring dengan perkembangan zaman. Sumber energi di Indonesia masih didominasi oleh sumber energi fosil yaitu minyak bumi, batu bara, dan gas alam. BBM atau Bahan Bakar Minyak merupakan salah satu produk dari minyak bumi yang menjadi salah satu bahan bakar utama dipakai di Indonesia. Menurut data Kementrian Energi dan Sumber Daya Mineral, konsumsi BBM selalu mengalami peningkatan setiap tahunnya. Konsumsi BBM yang terus meningkat ini tidak diimbangi dengan adanya produksi minyak nasional yang juga meningkat. Untuk mengatasi permasalahan tersebut tentu dibutuhkan pengendalian proses plant yang kompleks. Perancangan desain plantwide control (PWC) pada Petroleum Refining Process berhasil menyelesaikan permasalahan tersebut, terbukti dengan adanya produk yang meningkat, penghematan energi, serta dilihat dari kestabilan respon yang ada. Selain itu karena adanya material recycle dan integrasi panas, metode PWC sangat cocok untuk diterapkan pada plant ini. Penelitian ini menggabungkan PWC milik Luyben dan Skogestad menjadi tujuh langkah yaitu penentuan fungsi objektif, identifikasi DOF (Degree of Freedom), penentuan laju produksi, penentuan variabel ekonomi, penambahan pengendali feedforward, penambahan pengendali supervisory, dan optimisasi. Penerapan PWC pada Petroleum Refining Process pada kenaikan feed 5% meningkatkan laju produksi hingga 5,43 kg/h dan 1,59 kg/h pada penurunan feed 5%. Pengehematan energi dan peningkatan laju produksi mampu meningkatkan profit hingga 5,58 U$/h dengan metode PWC dibandingkan dengan menggunakan strategi kontrol PID biasa. Penerapan PWC juga dapat menghasilkan respon sistem yang stabil saat dilakukan uji gangguan dibuktikan dengan settling time dan overshoot yang menurun serta hilangnya eror steady state. ==============================================================================================================================
Energy sources in Indonesia are still dominated by fossil energy sources, namely oil, coal, and natural gas. BBM or Oil Fuel is one product of petroleum which is one of the main fuels used in Indonesia. According to data the Ministry of Energi dan Sumber Daya Mineral, fuel consumption always increases every year. This continued increase in fuel consumption is not offset by the increase in national oil production. To overcome these problems, it is certainly necessary to control the complex plant process. Plantwide control (PWC) design in Petroleum Refining Process successfully resolves these problems, as evidenced by the presence of increased products, energy savings, and the stability of the existing responses. Besides that due to the presence of recycle material and heat integration, the PWC method is very suitable to be applied to this plant. This study combines Luyben’s method and Skogestad's into seven steps, determining objective functions, identifying DOF (Degree of Freedom), determining the rate of production, determining economic variables, adding feedforward controllers, adding supervisory controllers, and optimizing. The application of the PWC to the Petroleum Refining Process at a 5% increase in feed increases the production rate to 5.43 kg/h and 1.59 kg/h at a 5% decrease in feed. Energy savings and increased production rates can increase profits to 5.58 U$/h using the PWC method compared to using the usual PID control strategy. The application of PWC can also produce a stable system response when a disturbance test is carried out as evidenced by decreased settling time, maximum overshoot and steady state error loss.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSF 629.8 Put d-1 2019 |
| Uncontrolled Keywords: | Plantwide Control, Petroleum Refining Process |
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Intan Parliani Putri |
| Date Deposited: | 17 Oct 2024 05:14 |
| Last Modified: | 17 Oct 2024 05:14 |
| URI: | http://repository.its.ac.id/id/eprint/68588 |
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