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Migration of Boiler Drum Temperature (BDT) into aspen dynamics environment for teaching and research purposes

Migration of Boiler Drum Temperature (BDT) into aspen dynamics environment for teaching and research purposes / Nur Hasniena Mohd Rosli
Permodelan simulasi dinamik telah menjadi satu keperluan untuk jurutera proses kawalan. Ini adalah disebabkan oleh kajian dinamik dan keadaan mantap selaras dengan objektif proses kawalan untuk mengekalkan proses kepada keadaan operasi yang dikehendaki. Dalam kajian ini, penghijrahan dandang suhu drum dilakukan menggunakan Aspen Plus untuk keadaan mantap. Analisis sensitiviti telah dilakukan untuk menganalisis kesan perubahan masukan kepada keluaran daripada proses. Kemudian, simulasi itu tukar ke platform Aspen Dynamic untuk mengkaji sistem dinamik proses tersebut di mana gelung kawalan ditambah dan dikaji. Prestasi kawalan keseluruhan juga telah dinilai dengan memperkenalkan gangguan dalam aliran suapan proses dan memperkenalkan parameter penalaan. Pengesahan simulasi telah dilakukan dengan data eksperimen yang sebenar. Prestasi simulasi lebih cepat untuk kawalan suhu berbanding dengan proses sebenar tetapi sebaliknya untuk kawalan paras. Tambahan pula, prestasi pengawal ditingkatkan lagi dengan penalaan menggunakan kaedah Z-N. Prestasi simulasi menjadi lebih cepat untuk mencapai produk yang diingini berbanding PID yang normal. _______________________________________________________________________________________________________ Dynamic simulation and modelling has turned into a need to process control engineers. This is due to dynamics and steady state study are in line with the primary objective of process control which is to maintain a process at the desired operating conditions. In this study, migration of the Boiler Drum Temperature was done using Aspen Plus for steady state condition. Sensitivity analysis was done to analyse the effect of input changes on the output of the process. Then, the simulation was exported to Aspen Dynamic platform to study the dynamics of the system, whereby control loops are added and studied. The overall control performance was also evaluated by introducing disturbances in the feed streams of the process and introducing the tuning parameter. Validation of the simulation was done with the actual experimental data. The performance of the simulation for the temperature is much faster compared to the actual process but for level it has slower response. In addition, the controller performance is improved by tuning using Z-N. It became faster to get to the desired set point compared to normal PID.
Contributor(s):
Nur Hasniena Mohd Rosli - Author
Primary Item Type:
Final Year Project
Identifiers:
Barcode : 00003107182
Accession Number : 875007302
Language:
English
Subject Keywords:
Dynamic simulation; process control engineers; actual experimental data
First presented to the public:
6/1/2017
Original Publication Date:
4/27/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Chemical Engineering
Citation:
Extents:
Number of Pages - 70
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-04-27 16:22:43.887
Date Last Updated
2019-01-07 11:24:32.9118
Submitter:
Mohd Jasnizam Mohd Salleh

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Migration of Boiler Drum Temperature (BDT) into aspen dynamics environment for teaching and research purposes1 2018-04-27 16:22:43.887