GATE BT · 2019 · BT
Question 55: Bioreactor engineering
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Question 55
BTNAT2 marksNeeds review
The dimensions and operating condition of a lab-scale fermentor are as follows:
Volume = 1 L
Diameter = 20 cm
Agitator speed = 600 rpm
Ratio of impeller diameter to fermentor diameter = 0.3
This fermentor needs to be scaled up to 8,000 L for a large scale industrial application. If the scale-up is based on constant impeller tip speed, the speed of the agitator in the larger reactor is ______ rpm. Assume that the scale-up factor is the cube root of the ratio of fermentor volumes.
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2019BT
GATE BT 2019 · Paper 1
Biotechnology · Original paper archive
- Section
- Biotechnology
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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