#Question id: 14230
#Section 5: Bioprocess Engineering and Process Biotechnology
In current service, 20 kg s^-1 cooling water at 12⁰C must be circulated through a coil inside a fermenter to maintain the temperature at 37⁰C The coil is 150 m long with pipe diameter 12 cm; the exit water temperature is 28⁰C After the inner and outer surfaces of the coil are cleaned it is found that only 13 kg s^-1 cooling water is required to control the fermentation temperature. Calculate the overall heat-transfer coefficient before cleaning. _____________
#Question id: 14155
#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
#Question id: 2082
#Section 2: General Biology
Which of the cellular organelles are enclosed by two cellular membranes?
#Question id: 17206
#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
#Question id: 14343
#Section 5: Bioprocess Engineering and Process Biotechnology