#Question id: 14335
#Section 5: Bioprocess Engineering and Process Biotechnology
A cylindrical stirred bioreactor of diameter and height 2 m has a Rushton turbine one-third the tank diameter in size. The bioreactor contains Newtonian culture broth with the same density as water and with viscosity 4 cP. If the specific power consumption must not exceed 1.5 kW m-3, determine the maximum allowable stirrer speed. What is the mixing time under these conditions? __________
#Question id: 14336
#Section 5: Bioprocess Engineering and Process Biotechnology
A cylindrical stirred bioreactor of diameter and height 2 m has a Rushton turbine one-third the tank diameter in size. The bioreactor contains Newtonian culture broth with the same density as water and with viscosity 4 cP. The tank is now aerated. In the presence of gas bubbles, the approximate relationship between ungassed power number (NP)0 and gassed power number (NP)g is: (NP)g =0.5 (NP)0. What maximum stirrer speed is now possible in the sparged reactor? Estimate the mixing time.
#Question id: 14337
#Section 5: Bioprocess Engineering and Process Biotechnology
#Question id: 14338
#Section 5: Bioprocess Engineering and Process Biotechnology
Quasi steady state condition is
#Question id: 14339
#Section 5: Bioprocess Engineering and Process Biotechnology
In continuous culture which phase is usually longer?
#Question id: 14340
#Section 5: Bioprocess Engineering and Process Biotechnology