Prihandoko, Ghozal (2019) Identifikasi Model State Space Plant Distilasi Bioetanol. Sarjana thesis, Universitas Brawijaya.
Abstract
Bahan bakar fosil termasuk sumber energi yang tidak dapat diperbarui. Oleh karena itu, suatu saat bahan bakar fosil akan habis. Bioetanol merupakan salah satu bahan bakar alternatif yang dapat menggantikan bahan bakar fosil yang digunakan selama ini. Selain dapat diperbarui, bioetanol juga bersifat ramah terhadap lingkungan. Bioetanol diperoleh dari hasil fermentasi bahan nabati yang mengandung gula. Bioetanol dari proses fermentasi memiliki kadar alkohol rendah. Selanjutnya dilakukan distilasi untuk meningkatkan kadar alkohol dalam bioetanol. Untuk menghasilkan bioetanol dengan kualitas yang bagus, diperlukan pengendalian suhu dalam proses distilasi. Dalam sistem kontrol, suatu plant yang akan dikendalikan perlu adanya perancangan sistem kendali plant tersebut. Analisis atas suatu sistem akan lebih mudah jika diketahui model matematik dari sistem yang bersangkutan. Pada penelitian ini dilakukan identifikasi model state space plant distilasi bioetanol. Penelitian ini menggunakan metode Observer/Kalman filter Identification (OKID) dan Eigensystem Realization Algorithm (ERA). Sinyal uji yang digunakan sebagai masukan sistem adalah Pseudo Random Binary Sequence (PRBS). Sinyal uji akan diberikan ke sistem lalu keluaran dari sistem dicatat, sehingga didapatkan pasangan data input-output. Pasangan data input-output tersebut kemudian diolah menggunakan metode OKID/ERA. Didapatkan model state space dengan matriks 4 1,0735 10 A , B 0,0166, C [0,0166] dan [6,0546 10 ] 4 D . Hasil validasi dari model state space yang didapat dengan uji keakurasian (Best Fit) sebesar 98,38% dan Akaike’s FPE sebesar 0,0686
English Abstract
Fossil fuels are non-renewable sources of energy. Therefore, one day fossil fuels will run out. Bioethanol is an alternative fuel that can replace fossil fuels used so far. Besides being renewable, bioethanol is also environmentally friendly. Bioethanol is obtained from fermented vegetable ingredients containing sugar. Bioethanol from the fermentation process has a low alcohol content. Then distillation is carried out to increase the alcohol content in bioethanol. To produce bioethanol with good quality, it is necessary to control the temperature in the distillation process. In a control system, a plant that will be controlled requires the design of the plant's control system. Analysis of a system will be easier if you know the mathematical model of the system in question. In this study, the identification of the bioethanol distillation model of state space plant was carried out. This study uses the Observer / Kalman filter Identification (OKID) method and the Eigensystem Realization Algorithm (ERA). The test signal used as system input is Pseudo Random Binary Sequence (PRBS). The test signal will be given to the system then the output from the system is recorded, so that the pair of inputoutput data is obtained. The pair of input-output data is then processed using the OKID / ERA method. Obtained state space model with matrix 4 1,0735 10 A , B 0,0166, C [0,0166] and [6,0546 10 ] 4 D . The validation results from the state space model obtained with the Best Fit test were 98.38% and Akaike's FPE was 0.0686.
Other obstract
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| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FT/2019/408/051905004 |
| Uncontrolled Keywords: | Bioetanol, Distilasi, State space, OKID/ERA, PRBS, Validasi. Bioethanol, Distillation, State space, OKID/ERA, PRBS, Validation. |
| 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 04:20 |
| Last Modified: | 26 Aug 2020 04:20 |
| URI: | http://repository.ub.ac.id/id/eprint/171562 |
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