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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)
with the aid of notes and sketches describe how you would transfer the design from a sheet of paper onto the wooden panel prior to carving
SHIELDING GAS ADVANTAGES Some of the advantages of GMAW process as compared to other arc welding process are as follows: It is a continuous welding process and can
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Battery Electrolyte and Gases Battery emits explosive gases, keep sparks and flames away. Ensure adequate ventilation while charging the battery. Brake Fluid Spilling
Which of the following is an open pair?
Compoun d shaft: compoun d shaft? How is compound shaft classified? Sol.: Shaft made up of 2 or more mat
Joint Details and Preparations Joints shall be prepared by machining, flame cutting with grinding to bright metal or air-carbon arc gouging with grinding to bright metal such t
Explain which laws of physics are used to discuss heat loss in a pipe, and briefly explain how the famous equation for the loss of heat in a cylindrical pipe is derived. Explain th
derivation of elongation of bar due to its self weight
Compound Stress: Define Compound Stress. Sol.: Simple stresses mean tensile stress or compressive stress or shear stress. The tensile and compressive stresses act on p
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