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Once the total volume of an individual vessel has been established the detailed dimensions or mechanical design can be performed. Much of this is based on "Rules of Thumb" built from years of experience. A summary is provided below for a standard Stirred Tank Reactor (STR).
Perhaps the most important factor in the mechanical design of a bioreactor is the height to diameter or aspect ratio as this determines many of the other important bioreactor characteristics. There are relative advantages of increasing either the height or diameter.
(a) Increasing height
i. increases the hydrostatic pressure
Advantage - increases solubility of oxygen
Disadvantage - increases solubility of other gases which may be toxic, e.g. CO2 ii. allows more agitators
Advantage - better power development
Disadvantage - can lead to poor mixing due to compartmentalisation (b) Increasing diameter
i. lowers the superficial (linear) gas velocity
Disadvantage - poor mixing, oxygen transfer ii. reduces wall surface area (per unit volume) available for heat transfer
Disadvantage - leads to temperature control problems
how to prevent absolute noise during meshing of gears
The EV is to be used for city transportation, it should carry a maximum total load of 325 kg (passengers and cargo). The battery back used will be 365 kg, 44 kilowatt hours lithium
Torsion equation derivation
Q. W rite different relations used in belt drive. Sol: Let: D 1 = Diameter of driver N 1 = Speed of the driver in Rotation per minute D 2 = Diameter of the driv
two forces are acting at a point''o'',determine magnitude and direction by using parallelogram law of forces and triangular law of forces
Spinal fluid Collection: Spinal fluid is usually obtained from lumbar region, although may be obtained during surgery from the cervical region or from the cistern or ventri
what is the dimensions of drum peel strength testing fixtures
Q. Method of construction - Plant layout? Plant layout is influenced by the intended method of construction, whether the plant is being constructed on-site, or whether modules
Clausiu s statement: It is impossible to construct this type of H.P. which operates on cyclic process and allows transfer of heat from colder body to a hotter body without th
In an orthogonal cutting process, following data were taken. Chip length of 80mm was obtained with an uncut chip length of 200mm and the rake angle used was20 degrees and depth of
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