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Process modelling and control of isoamyl acetate synthesis in microreactor using matlab simulink

Process modelling and control of isoamyl acetate synthesis in microreactor using matlab simulink / Elysia Chiang Chern Yuen
Isoamyl asetat adalah ester yang mempunyai perisa pisang. Oleh sebab permintaan bagi industri perisa makanan dan perisa pisang telah meningkat kebelakangan ini, esterifikasi enzimatik telah didapati sebagai alternative yang berlabel semula-jadi untuk menghasilkan isoamil asetat. Proses berterusan berdasarkan teknologi mikroreaktor telah diberi tumpuan dalam proses biokimia kerana teknologi ini merupakan proses yang kurang membazir berbanding dengan kaedah tradisional. Objektif kajian ini adalah untuk mencadangkan strategi kawalan untuk mendapatkan hasil ester yang paling baik dengan menggunakan ujian langkah, kaedah Ziegler Nichols dan Cohen-Coon. Sebelum proses kawalan dilakukan, model proses dari skrip MATLAB diterjemahkan ke dalam blok Simulink. Simulasi dijalankan dalam MATLAB Simulink dan model yang dicadangkan telah disahkan dengan kerja eksperimen dan keputusan simulasi yang sebelumnya menggunakan EXCEL Solver. PID dengan nilai P, I dan D sebanyak 6.8, 0.56 dan 0.14 masing-masing telah didapati sebagai pengawal terbaik dari segi kriteria prestasi seperti overshoot, masa naik, masa puncak pertama, masa penyelesaian, nisbah keruntuhan dan lengkung tindak balas. _______________________________________________________________________________________________________ Isoamyl acetate is an ester that exhibits banana-like flavour. As demand for food flavour industry and banana flavouring have risen this recent years, enzymatic esterification has been found to be a natural-labelled alternative to produce isoamyl acetate. Continuous process based on microreactor technology has been given focus in biochemical process as they offer a less wasteful process compared to traditional methods. The objective of this study is to develop a control strategy to optimize the ester yield by using step test, Ziegler Nichols and Cohen-Coon methods. Before process control was carried out, the process model from MATLAB script was translated into Simulink blocks. Simulation was carried out in MATLAB Simulink and the proposed model was validated with experimental work and previous simulation result using EXCEL Solver. PID with P, I and D values of 6.8, 0.56 and 0.14 respectively were found to be the best controller in term of performance criteria such as overshoot, rise time, time to first peak, settling time, decay ratio and response curve.
Contributor(s):
Elysia Chiang Chern Yuen - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875007516
Language:
English
Subject Keywords:
Isoamyl acetate; ester; banana flavouring
First presented to the public:
6/1/2018
Original Publication Date:
7/18/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Chemical Engineering
Citation:
Extents:
Number of Pages - 81
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-07-31 15:31:39.969
Date Last Updated
2019-01-07 11:24:32.9118
Submitter:
Mohd Jasnizam Mohd Salleh

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Process modelling and control of isoamyl acetate synthesis in microreactor using matlab simulink1 2018-07-31 15:31:39.969