3.4. Heat transfer
Results are presented in Table 3. Fig. 9 shows the dependence of
the Nusselt number, NuL, based on liquid thermal conductivity and
Reynolds number, ReGS, based on superficial gas velocity and kinematic
gas viscosity. As shown in Fig. 9 an increase in superficial
liquid velocity involves an increase in heat transfer (NuL). This
effect falls off with increasing superficial gas velocity in the range
ReGS = 4.7–270.