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Determination of the overall volumetric mass transfer coefficient kLa, by a temperature dependent change of gas solubility

✍ Scribed by Niels Thomas Eriksen; Jens Jørgen Lønsmann Iversen

Publisher
Springer-Verlag
Year
1994
Tongue
English
Weight
336 KB
Volume
8
Category
Article
ISSN
0951-208X

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✦ Synopsis

The solubility of oxygen in the liquid phase of a bioreactor was changed by a ramp change of temperature, and k,a was determined from the resulting return to equilibrium of dissolved oxygen activity. The maximum k,a that can be measured by this method in a standard laboratory scale bioreactor is 14.5 he' corresponding to a temperature change rate of 320°C h-l.

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Determination of the volumetric mass tra
Determination of the volumetric mass transfer coefficient (kLa) using the dynamic “gas out–gas in” method: Analysis of errors caused by dissolved oxygen probes
✍ L. A. Tribe; C. L. Briens; A. Margaritis 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 459 KB 👁 3 views

There are many dynamic methods for measuring the volumetric mass transfer coefficient. The "gas out-gas in" method can directly determine the volumetric m a s s transfer coefficient in a bioreactor system and provide estimates of the volumetric microbial oxygen uptake rate and the average oxygen sat