ABSTRACT
Most of the engineering parameters discussed separately in Chapters 9 to 14 show mutual relationships. Mass transfer is related to foam control. Mass transfer is related to stirrer power and gas flow rate, as well as to hold-up. Increasing mass transfer leads to an increase in hold-up and therewith a decrease in effective reactor volume. Also, mixing is related to these parameters. All stirrer power finally will dissipate into heat and will influence the cooling requirements in this way. The main important relationship, however, is that of mixing with oxygen mass transfer, substrate addition and heat transfer. This will be worked out in a critical time regimes concept.
