The mixing time tm in a stirred fermenter where we are growing a cell culture can be estimated using the following equation: 1/3 1/3 pV fm = 5.9 Dị" ()" )" 2/3 Evaluate the mixing time in seconds for a vessel of diameter D7=2.3 m containing liquid volume V=10,000 liters stirred with an impeller of diameter D;=45 in. The liquid density p=65 lb/ft and the power dissipated by the impeller P=0.70 metric horsepower.

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8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
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Chapter5: Analysis Of Convection Heat Transfer
Section: Chapter Questions
Problem 5.12P
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The mixing time tm in a stirred fermenter where we are growing a cell culture can be estimated using the
following equation:
1/3
1/3
2/3
tm = 5.9
P
Evaluate the mixing time in seconds for a vessel of diameter D7=2.3 m containing liquid volume V̟=10,000
liters stirred with an impeller of diameter D;=45 in. The liquid density p=65 lb/ft and the power dissipated
by the impeller P=0.70 metric horsepower.
Transcribed Image Text:The mixing time tm in a stirred fermenter where we are growing a cell culture can be estimated using the following equation: 1/3 1/3 2/3 tm = 5.9 P Evaluate the mixing time in seconds for a vessel of diameter D7=2.3 m containing liquid volume V̟=10,000 liters stirred with an impeller of diameter D;=45 in. The liquid density p=65 lb/ft and the power dissipated by the impeller P=0.70 metric horsepower.
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