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Local gas holdup measurement in aerated agitated bioreactors

✍ Scribed by Jeng-Dar Yang; Nam Sun Wang

Publisher
Springer-Verlag
Year
1991
Tongue
English
Weight
446 KB
Volume
5
Category
Article
ISSN
0951-208X

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✦ Synopsis

A simple, inexpensive apparatus wholly consisting of readily available components is developed to measure the local volumetric gas holdup in aerated agitated bioreactors based on the principle of phase separation. The device can determine the gas holdup to as low as 0.1% with a measurement error of less than 10%. To prevent under-withdrawing or over-withdrawing the dispersed gas, a sampling rate yielding a superficial velocity at the sampling probe opening equal to -50% of the stirrer tip speed is recommended.

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