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The use of positive feedback control systems to improve reactor performance
Author(s) -
Gaitonde N. Y.,
Douglas J. M.
Publication year - 1969
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690150618
Subject(s) - control theory (sociology) , steady state (chemistry) , chemical reactor , feedback control , control (management) , optimum control , value (mathematics) , set (abstract data type) , mathematics , process engineering , engineering , computer science , control engineering , chemistry , statistics , chemical engineering , artificial intelligence , programming language
Positive feedback control systems sometimes can be used to make stable chemical reactors generate periodic outputs. For one set of system parameters the time average conversion obtained from the oscillating reactor was approximately 20% higher than the economic optimum steady state value; for another case the time average operating cost was approximately 5% lower than that corresponding to the optimum steady state design. A general method for predicting when an improvement can be obtained is presented.