کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
700729 890917 2006 16 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Modelling, on-line state estimation and fuzzy control of production scale fed-batch baker's yeast fermentation
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موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
پیش نمایش صفحه اول مقاله
Modelling, on-line state estimation and fuzzy control of production scale fed-batch baker's yeast fermentation
چکیده انگلیسی

Two soft sensors were developed for the estimation of biomass concentration and specific growth rate in fed-batch baker's yeast fermentation: one based on estimation of specific growth rate from process model, the other based on actual measurements. The first method of estimation gave satisfactory results under fixed initial condition where inoculum size was fixed. However the estimation was deviated when initial amount of seed yeast was changed under otherwise identical conditions. To overcome this problem, the second method of estimation was proposed. This method gave improved estimation even with varying initial condition. Fuzzy controller was designed based on the proposed structure using simulation model of fed-batch baker's yeast fermentation system in order to demonstrate effective use of neural soft sensors developed in this work. The controller determined substrate and air flow rate, relating to status of estimated specific growth rate, elapsed time, ethanol concentration and dissolved oxygen concentration. It has been tested on a simulated fed-batch production scale fermenter. The results demonstrated that the controller has generated substrate and air flow rates as an output acceptable in large scale.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Control Engineering Practice - Volume 14, Issue 8, August 2006, Pages 959–974
نویسندگان
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