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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)
Factor of Safety: Factor of safety is number used to determine working stress. It is fixed based on experimental works on material. It accounts all uncertainties like, mate
design criteria for chain drives
Calculate the radius of plates: A laminated steel spring, simply supported at the ends & centrally loaded, along a span of 0.8 m; is needed to carry a proof load of 8 kN; and
what is feathering system in turbo prop type aircraft
transducers
a) What do ypu understand by production Planning and Control Function. Briefly mention the objective of PPC. b) There are 8 job in an auxiliary unit requiring processing on mach
Explain the Evaluation Phase of auger shaft Evaluation Phase of auger shaft Steps: 1. To judge the ideas generated in the creation phase for ability to meet the required
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(a) Describe and calculate i) Humidity Ratio ii) DPT iii) Relative Humidity iv) Density v) Enthalpy of atmosphere air when DBT is 35 0 C, WBT is 23 0 C and the ba
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