| A systematic investigation on the effect of major variables on critical heat flux in forced convection of flow boiling was carried out using available world data for water in a vertical round tube. A new correlation was developed to predict the critical heat flux in both subcooled boiling and saturated boiling regimes. The correlation relates critical heat flux to only local variables: pressure, diameter, mass flux and local true mass fraction of vapor. The correlation has only two pressure dependent constants at a fixed pressure. The tested conditions for water are at pressures from 2 bar to 200 bar. The tube inner diameter ranges from 3 mm to 37 mm. Mass fluxes range from 100 kg/m... |
