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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)
Scope of WPS and PQR A Welding Procedure Specification (WPS) is written qualified welding procedure prepared to provide direction for making production welds to code requiremen
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what are the limitations of first law of thermodynamics?
Find out the magnitude of the force to keep equilibrium: Th e lever ABC of a component of machine is hinged at point B , and is subjected to a system of coplanar forces.
Find the Maximum Allowable Size of the Milling Cutter Find the maximum allowable size of the milling cutter if it is to rotate at 65 rpm while the cutting speed is 20 m/min.
Inspection of Fasteners: The motorcycle carries number of nuts and bolts. They should be properly tightened for the smooth running of motorcycle. All fasteners are checked
If no leak found in the above listed area remove flywheel: Remove fly wheel and check weather oil leak is from the seal or "o" ring.
Evaluate the motion - Smooth pulley: Block B is accelerated along the horizontal plane via mass A attached to it by a flexible inextensible massless rope passing over a smooth
Q. Show Mass energy Relation? Until the time of Einstein, mass and energy were considered as two different physical quantities. But in 1905, with the help of postulates of the
Like&unlike forces
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