Jäger et al. [14] compiled a database of supercritical water heat
transfer from six experimental data sources. The parameter range
of the data cover mass flux of 500–2150 kg/m2 s, heat flux of
116–1577 kW/m2, tube hydraulic diameter of 7.5–26 mm, and
pressure of 22.6–31.0 MPa. Based on the database, they assessed
15 correlations of supercritical water heat transfer. Results showed
that none of them gave satisfactory predictions for all cases, especially
in the pseudo-critical region, and that the Bishop et al. [10]
correlation performed best.