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Power Input Measurements in Stirred Bioreactors at Laboratory Scale - a 2 minute Preview of the Experimental Protocol

Stephan C. Kaiser, Sören Werner, Valentin Jossen, Katharina Blaschczok, Dieter Eibl
Thermo Fisher Scientific, Finesse; Zurich University of Applied Sciences, School of Life Sciences and Facility Management, Institute of Chemistry and Biotechnology;

The power input in stirred bioreactors can be measured through the torque that acts on the impeller shaft during rotation. This manuscript describes how an air bearing can be used to effectively reduce friction losses observed in mechanical seals and improve the accuracy of power input measurements in small-scale vessels.

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