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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)
What do you mean by thermodynamic equilibrium? Compare irreversible process with reversible process. Give some examples of irreversible process.
equivalent evaporation of boiler..?
Q. Show the Vessel Supports? Approved materials and allowable stresses, shall be used for vessels and their supports. For structural shape support members in compression, wh
Figure presents a gearbox that you are going to design. The input shaft rotates at n1= 1500 rpm in a counterclockwise direction. The gearbox is needed to be designed sothat the out
BASIC PRINCIPLE OF ELECTRON BEAM WELDING(EBW) Electron beam welding which utilises a heat source of electrons which are accelerated by an electric field to mextremely high
Plate clutch pressure: Check plate clutch pressure for any step using a straight edge.
Isolated System: In an Isolated system, neither energy nor masses are permitted to cross the boundary. The system has constant mass and energy. No such system exists physicall
Illustrate the various Functions of clutch and also explain the Principle of frictions Clutch ? What is the requirement of Transmission System & Explain the Arrangemnet for P
Find the distance of weight ‘x’ from support: The t wo weights C = 2000N and D = 1000N are located on horizontal beam AB as shown in the figure given below. Find the d
Q. Explain about Horizontal Vessels? Horizontal vessels shall preferably be designed for two saddle supports attached by welding. Design of saddle supports and calculation of
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