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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)
Q. Find out M.I. of T section as shown in figure given below about X - X and Y - Y axis through center of gravity of the section. Figure Sol.:
Service and Maintenance Procedures, you have studied detailed procedure of motorcycle service and maintenance and points to be remembered while servicing. In the next course, you s
Formation (Embankment): The formation is the earthen embankment on which the other components of the track rest. For supporting the heavy loads, the earth should be of good q
Q. Can you explain Bentonite binders? Its general composition is MgO.Al 2 O 3 .Sio 2 .H 2 O. it is formed by weathering of volcanic or igneous rocks. It is a creamy white powde
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A refrigeration system produces 40 kg/hr of ice at 0oC from water at 25oC. Find the refrigeration effect per hour and TR. If it consumes 1 kW of energy to produce the ice,
The Linear Dimension Command You can use this command to generate horizontal and vertical dimensions.Creating a linear dimension is eas
Q. Use of high temperature materials in Furnaces? Often, furnace tubing and refractory protected membrane walls are fabricated from plain carbon steel with a minimum of 0.25% c
Explain in detail about the Pile Foundations Where the support given by top soil is not sufficient and the load has to be carried deep down for purposes of stability and contro
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