Entraining of dust and steam flux in water pool: experimental and numerical simulations of vapor condensation and dust deposition

Abstract This paper deals with experimental tests of steam condensation in a water pool at atmospheric pressure and temperature the range 15-100 °C. The activity is performed frame research program, funded by ITER organization, for study dust deposition, produced Vacuum Vessel entrained non condensable gas into Pressure Suppression Tanks case Loss Coolant Accident. subcooled has been investigated to characterise regimes occurring during deposition tests. distribution on tank walls strongly depends jet length effective heat transfer coefficient. Few grams reduce transparency, therefore separated without overcome this drawback. Measurements lengths surfaces jets (which permit calculate average transfer) have means image analyses compared theoretical correlations. comparison showed good agreement between data Useful obtained implementing numerical models understanding wall