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On the estimation of average shear rate in bubble columns
Author(s) -
Nishikawa Masabumi
Publication year - 1991
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260370711
Subject(s) - airlift , shear (geology) , bioreactor , bubble , shear rate , mechanics , biochemical engineering , environmental science , chromatography , materials science , chemistry , biology , engineering , rheology , physics , botany , composite material
Development of bioengineering using such biomaterials as plant tissues or genetically produced microorganisms makes it important to accurately estimate the prevailing shear rate in bioreactors because they are generally sensitive to shear. Various authors have discussed ways to estimate the average shear rate in a bubble column or an airlift reactor. 1 This communication will explain the background consideration for the development of the expression as γ av = 50 u g by the present authors, and give suggestions for further discussions.