Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
The function of the impellers is to: (i) reduce bubble size thereby increasing the surface area for oxygen transfer, and (ii) maintain a uniform environment, nutrient supply and heat removal. The choice of impellers depends on: (i) type of fermentation and organism, (ii) impeller design, (iii) power input and (iv) mixing efficiency. Some typical impeller designs are shown below.
The ratio of the bioreactor tank:impeller diameter (Di/DT) is normally in the range 0.33 - 0.5. For radial flow impellers the diameter tends to be closer to 0.33 of the tank diameter and for axial mixers the diameter tends to be slightly larger. The location of the impellers is determined by geometric and mixing considerations.
First impeller: 0.33 - 0.5 tank diameter from base
Spacing: 1 - 2 impeller diameters (or 1 tank diameter)
Final impeller: 1 - 2 impeller diameters from the aerated liquid surface
Consequently consideration of the liquid level during the process needs to be taken into account, i.e. broth volume will increase with aeration and volume will increase in a fed-batch process.
Terminal Nut: This is a detachable type of terminal nut. The high tension (HT) cord is connected here. This is also available in non-detachable type. Figure: Spark Plug
Q. Find out M.I. of T section as shown in figure given below about X - X and Y - Y axis through center of gravity of the section. Figure Sol.:
Q. Molding methods according to the method of making a mold? Following are the molding methods according to the method of mold making: • Open mold method: the method is su
Q. Steam Generator Load Balancing? The pressure controller output is cascaded to individual stations, one for each boiler. These allow selective increase or decrease of the du
need help with reports on thin thick and combined cylinder theory
What'' is balancing and vibration in machines Need of balancing? Causes of vibration and their harmful effects and remedies?
Series Spot Welding In series welding, a portion of the secondary current by passes any weld nugget being formed. And This shunt current passes through one of the panels being
Split pattern or two piece pattern This is the most widely used type of pattern for intricate castings. When the contour of the casting make sits withdrawal from the mould diff
Given: A brittle material has an ultimate tensile strength of 300 MPa and an ultimate compressive strength of -1000MPa. Assume that failure can be represented by the Modified
Commutator The function of a commutator is to change alternating current induced in the armature into unidirectional current. The commutator is of cylindrical shape and is made
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd