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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)
Determine ratio between mass flow rate to condensing steam: In steam power plant, the steam 0.1 bar and 0.95 dry enters condenser and leaves as saturated liquid at 0.1 bar an
A 54 kg chandelier is suspended 1.5 m below a ceiling by 3 wires, each of which has the similar tension and the similar length of 2.0 m (see the drawing). Find the tension in every
Define the Basic Components of an N.C System The basic components of an N.C system are as follow: a) Programmer of Instruction: - It is a set of direction which will tell th
Forces in the members of the truss: Find out the forces in the members AB , BC , AC of the truss shown in the figure drawn adjacent. Sol.: First determin
isentropic flow
write the assumption made in derivetion of shear stress produced in circular shaft subjected to torsion
Find out the impact-force: A mass of 3 kg ball freely falls from a height of 2 metres on an anvil, & rise 0.5 metre after the blow. If the duration of impact is (1/50) th of
what is the meant by kleins construction?
A smooth glass plate is coated with a special electrically conductive film that may be used to produce a constant heat flux on the plate. Estimate the air flow velocity which must
Q. Corrosion Assessment of Flare and VRU System? The worst case scenario shall be considered during material selection of Flare KO Drums. Depending on the fluid composition ent
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