DESIGN AND SIMULATION OF A FUZZY CONTROLLER FOR FED-BATCH YEAST FERMENTATION

BESLI N., TURKER M., GUL E.

BIOPROCESS ENGINEERING, cilt.13, sa.3, ss.141-148, 1995 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 13 Sayı: 3
  • Basım Tarihi: 1995
  • Doi Numarası: 10.1007/s004490050148
  • Dergi Adı: BIOPROCESS ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.141-148
  • Bursa Uludağ Üniversitesi Adresli: Hayır

Özet

In baker's yeast fermentation, the process is non-linear and the response of the system to changes in glucose feeding has a very long delay time. Therefore, a conventional system can not give satisfactory results. In this paper, a fuzzy controller designed to control a fed-batch fermenter is presented. The fuzzy controller uses Respiratory Quotient (RQ) as a controller input and produces glucose feeding rate as control variable. The controller has been tested on a simulated fed-batch fermenter. The results show that the maximum yeast production is possible by keeping the specific growth rate (mu) and the glucose concentration (C-s) at preset values (mu(c) and C-s,C-c) and minimizing the ethanol production.