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Measurement of aeration capacity of fermenters
Author(s) -
Linek Václav,
Beneš P.,
Vacek Václav
Publication year - 1989
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.270120129
Subject(s) - aeration , reliability (semiconductor) , steady state (chemistry) , computer science , mechanics , mathematics , biological system , chemistry , thermodynamics , engineering , physics , waste management , power (physics) , biology
Important aspects of K 1 a measurement in agitated aerated vessels are briefly characterized from the standpoint of reliability of the measured data. An analysis of the shortcomings of dynamic methods for measuring the K 1 a is given. A new modification of the dynamic method is proposed, which excludes these inadequacies through a special experimental arrangement. This was verified by comparing the data with those obtained by an independent steady‐state method. The new method can serve as a standard of reference, suitable for testing newly developed methods for K 1 a measurement. The initial response method was tested in this way in non‐coalescent liquids, and shown to lead to errors of the order of hundreds of percent. K 1 a values obtained with the initial response method were found to depend strongly on the probe's location in the vessel.