Adaptation of a Freon-12 CHF correlation to apply for water in uniformly heated vertical tubes, Part 2 - based on CHF data for water pressures in the range 6-20 MPa.

An examination of more than 5000 sets of experimental data for critical heat flux (CHF) in uniformly heated vertical tubes internally cooled by high pressure water has shown that the CHF correlation proposed in Part 1 of this work is accurate for water at pressures up to approximately 17 MPa provided that minor modifications are made to the Prandtl number index and the saturation boiling length function. For pressures greater than 17 MPa CHF values calculated from the correlation are increasingly lower than the experimental data particularly at low saturation boiling length ratios (