The effects of gap size, heatflux and inlet subcooling on the boiling incipience, flow pattern, heat transfer coefficient, flow instability and criticalheatflux were analyzed and discussed.
Empirical formulae for the criticalheatflux of the film breakdown and heat transfer correlations for normal and subnormal films are obtained by fitting the test data.
The world vertical upward flow round criticalheatflux experimental database is analyzed based on the slice method, similarity measure, heat balance and inlet temperature verification.