TAILIEUCHUNG - Modelling of a Fed-Batch Fermentation Process

Milk has nutrients that make it suitable for the rapid multiplication of bacteria that cause spoilage. Unhygienic production, poor handling and undesirable practices such as addition of water or other substances can introduce bacteria or germs that cause spoilage. The resulting wastage can make you lose profits that you would have otherwise made. Unhygienic handling may introduce disease-causing bacteria into the milk and this can also adversely affect human health. In addition, regulatory authorities will likely require that you undergo a training course that covers the contents of this guide before they issue you with a licence to trade in milk. This course is therefore designed to provide. | UNIVERSITY CONTROL ENGINEERING LABORATORY Modelling of a Fed-Batch Fermentation Process Ulla Saarela Kauko Leiviska and Esko Juuso Report A No. 21 June 2003 University of Oulu Control Engineering Laboratory Report A No. 21 June 2003 MODELLING OF A FED-BATCH FERMENTATION PROCESS Ulla Saarela Kauko Leiviska and Esko Juuso Control Engineering Laboratory Department of Process and Environmental Engineering University of Oulu 4300 FIN-90014 University of Oulu Finland Abstract This report describes the building of a simulator for prediction of the dissolved oxygen concentration the oxygen transfer rate and the concentration of carbon dioxide in a fermentation process. The steady state models were made using the linguistic equations method. The dynamic models were made using Simulink toolbox in the Matlab . At the beginning some basics about fermentation and microbiological reactions are stated. In the third chapter the modelling methods are presented. The modelling experiments are presented in chapter four and after that the results are stated. Chapter six includes discussion about the results and the conclusions. The simulation results were good. Keywords fermentation modelling linguistic equations ISBN 951-42-7083-5 ISSN 1238-9390 ISBN 951-42-7514-4 PDF University of Oulu Control Engineering Laboratory 4300 FIN-90014 University of Oulu CONTENTS 1 2 Enzyme Fed-batch 3 MODELLING The method of linguistic Dynamic 4 MODELLING 5 RESULTS . 16 6 DISCUSSION AND REFERENCES . .

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