Open AccessADAPTIVE CONTROL OF FEED LOAD CHANGES IN ALCOHOL FERMENTATION
Author(s) -
Rossana O. M. Folly,
R. Berlim,
Andréa Medeiros Salgado,
Raquel G. França,
Belkis Valdman
Publication year - 1997
Publication title -
brazilian journal of chemical engineering/brazilian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.313
H-Index - 52
eISSN - 1678-4383
pISSN - 0104-6632
DOI - 10.1590/s0104-66321997000400012
Subject(s) - industrial fermentation , control theory (sociology) , adaptive control , controller (irrigation) , fermentation , set point , scale up , ethanol fermentation , process (computing) , control engineering , process engineering , engineering , computer science , control (management) , chemistry , biology , food science , physics , classical mechanics , artificial intelligence , agronomy , operating system
A fed-batch alcohol fermentation on a pilot plant scale with a digital supervisory control system was evaluated as an experimental application case study of an adaptive controller. The verification of intrinsically dynamic variations in the characteristics of the fermentation, observed in previous work, showed the necessity of an adaptive control strategy for controller parameter tuning in order to adjust the changes in the specific rates of consumption, growth and product formation during the process. Satisfactory experimental results were obtained for set-point variations and sugar feed concentration load changes in the manipulated inlet flow to the fermente