Model berasaskan kawalan suhu reaktor pengesteran telah dijalankan dalam penyelidikan ini. Pengawal yang digunakan adalah Generic Model Control (GMC) telah banyak digunakan dalam pelbagai bidang proses. Dalam tesis ini, simulasi dijalankan dengan menggunakan perisian MATLAB dan prestasi GMC dibandingkan dengan prestasi IMC-PID dan PID konvensional dalam reaktor pengesteran kelompok. Proses yang dipilih adalah pengesteran Citronellyl Laurate daripada reaksi antara Citronellol dan asid laurik dengan menggunakan lipase Candida rugosa dan iso-oktana (pelarut). Suhu optimum reaktor bagi proses ini adalah 310 K. Reaktor yang bersuhu tinggi iaitu melebihi 313 K akan menyebabkan denaturasi lipase Candida rugosa. Hasil kajian menggunakan simulasi menunjukkan bahawa prestasi GMC dalam menjejaki nilai penanda, pertukaran nilai penanda dan penyingkiran gangguan adalah lebih baik daripada prestasi IMC-PID dan PID konvensional. Hal ini menunjukkan bahawa pengawal GMC mampu mengawal suhu reaktor lebih baik berbanding pengawal IMC-PID dan PID konvensional. Namun, prestasi pengawal GMC adalah lemah berbanding IMC-PID pada kes perbezaan model proses yang terdiri daripada perbezaan pada haba tindak balas, pekali perpindahan haba dan perbezaan serentak bagi haba tindak balas dan pekali perpindahan haba.
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A model based control temperature for batch esterification reactor is presented. The controller is based on Generic Model Control (GMC) which are widely used in many appplication for various nonlinear processes. In this thesis, simulation have been carried out using MATLAB software and the results of GMC performance are compared with IMC-PID and conventional PID performance in batch esterification reactor. The selected process is the esterification of Citronellyl Laurate from reaction between Citronellol and Lauric Acid which are immobilized by Candida rugosa lipase and iso-octane (solvent). The optimum temperature of the reactor for this process is 310 K. High temperature reactor of more than 313 K causes denaturation of Candida rugosa lipase. The simulation studies in esterification reactor demonstrate that GMC performance in setpoint tracking, setpoint change and load changes are slightly better than performance of IMC-PID and conventional PID. This shows that GMC able to control the reactor temperature slightly better than IMC-PID and conventionl PID controller. However, for model mismatch cases, GMC performances are less robust compared to IMC-PID in the presence of model mismacth of heat of reaction, heat transfer coefficient and simultaneous mismatch of heat of reaction and heat transfer coefficient.
Control of batch esterification reactor using gmc controller_Sunarti Abdullah_K4_2011_875003882_NI