New PDF release: An Introduction to Bioreactor Hydrodynamics and Gas-Liquid

By Enes Kadic

ISBN-10: 1118104013

ISBN-13: 9781118104019

Reviews and compares the most important different types of bioreactors, defines their execs and cons, and identifies examine wishes and figures of advantage that experience but to be addressed

  • Describes universal modes of operation in bioreactors
  • Covers the 3 universal bioreactor kinds, together with stirred-tank bioreactors, bubble column bioreactors, and airlift bioreactors
  • Details much less universal bioreactors forms, together with mounted mattress bioreactors and novel bioreactor designs
  • Discusses benefits and downsides of every bioreactor and gives a process for optimum bioreactor choice in line with present technique needs
  • Reviews the issues of bioreactor choice globally whereas contemplating all bioreactor innovations instead of focusing on one particular bioreactor type

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Additional info for An Introduction to Bioreactor Hydrodynamics and Gas-Liquid Mass Transfer

Sample text

There are four main techniques for measuring power consumption in stirred-tank bioreactors, including electric measurements, calorimetric measurements, torque measurements, and strain measurement. Although calorimetric and strain techniques can be very accurate, particularly in a laboratory setting, the setup and required controls can be complicated and they are generally not utilized in an industrial setting. Torque measurements through dynamometers or torquemeters can provide accurate measurements of the power imparted to the fluid, provided losses due to no-load conditions are accounted for accurately.

2011) who used a bioptical probe and hot-film anemometry to measure local gas holdup, bubble velocity, bubble size, and liquid velocity in an external airlift reactor. They were able to provide radial distributions of the various measures of interest. 7 Global and Local Liquid Velocity In fermentation processes like those found in airlift reactors, the difference in riser and downcomer gas holdup creates a hydrostatic pressure difference between the bottom of the riser and the bottom of the downcomer, which in turn acts as the driving force for liquid circulation.

7 Global and Local Liquid Velocity In fermentation processes like those found in airlift reactors, the difference in riser and downcomer gas holdup creates a hydrostatic pressure difference between the bottom of the riser and the bottom of the downcomer, which in turn acts as the driving force for liquid circulation. 4) Uc = c tc where xc is the circulation path length and tc is the average circulation time for one complete circulation. However, liquid circulation velocity is not commonly used as a characteristic parameter for gas–liquid fermentation processes.

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An Introduction to Bioreactor Hydrodynamics and Gas-Liquid Mass Transfer by Enes Kadic


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