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Careful consideration of the bioreactor agitation and aeration system is required in order to maintain a homogeneous environment and provide sufficient oxygen transfer rates to meet cellular metabolic requirements.
Both agitation and aeration need to be considered together as they have an influence on the mechanical design of the fermenter, the oxygen transfer characteristics of the vessel and its power requirements.
There are a number of components that contribute to the aeration and agitation system efficiency including the height/diameter ratio. These are:
i. the impeller system (marine, flat-blade turbine etc) ii. the baffles (can also provide additional cooling capability) iii. the air sparger (ring, cross orifice, porous, nozzle) iv. the drive seal (mechanical, magnetic)
(a) Describe the terms "Fluid jet" and "Vane" in Fluid Machine. (b) What is impulse - momentum principal in analysis and design of turbo machines.
Q. Corrosion resistance of tantalum? Tantalum is readily attacked by strong alkalis, even at room temperature, and therefore, is not suitable for use in processes where the pH
What are rectangular combined footings? Rectangular Combined Footings: In the design of rectangular combined footings it is assumed that the footing is rigid. Soil pressure
need help to calculate how much a base must weigh to keep a object on to stable when a force is applied from the side
EQUIPMENT FOR RESISTANCE WELDING-Single phase vs three phase The resistance welding machines can be connected either across 440 V mains (across two lines) or three phase mains.
what is meant by tool signature
limitations of revers carnot cycle
Q. Explain caustic Stress Corrosion Cracking? Dilution of the caustic prior to injection into a relatively hot stream will minimize the potential of caustic Stress Corrosion Cr
a) Illustrate the important of Ergonomics in a manufacturing sector or in service sector in the context of productivity. b) What is the rol of "Forecasting" Plays in production
Q. can you explain Shell molds? These molds are prepared by pouring a mixture of sand and thermosetting resin over the heated surface of a metallic pattern, which results into
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