NUCLEATE BOILING OF NON-NEWTONIAN FLUIDS IN A STIRRED-TANK REACTOR

The nucleate boiling of non-Newtonian fluids has been investigated in a mechanically stirred tank. The wall heated reactor is stirred with a n anchor. The case of high consistency fluids has been more specifical ly studied. It was shown that when the fluid consistency increases, th e predominant mechanisms of boiling heat transfer change, resulting in the fact that the correlations which can be used as a design estimate for low viscosity fluids cannot be used any more. A method was propos ed for these fluids to estimate nucleate flow boiling heat transfer fr om the forced convection predictions.