Fig. 2 shows the comparison of the predictions of the new
correlation with the experimental database. It can be seen that
the predictions agree with the measured data very well. Fig. 3
shows the RD distribution of the predictions of the new correlation
with reduced temperature. It can be seen that small deviations
appear outside the pseudo-critical region, while most of the big
deviations occur in the vicinity of the critical and pseudo-critical
points, where the thermophysical properties of supercritical water
change rapidly with temperature and pressure.