Investigation on the Passive Containment Cooling System of an AC-PWR

摘要

Experimental investigations on the thermal-hydraulic performance of the passive containmentrncooling system (PCCS)of the AC-PWR, which is designed by the Nuclear Power Institute ofrnChina(NPIC)are carried out at the PASCO test facility of the Research Center Karlsruhern(FZK). Tests have been performed to study the effect of different baffle types, the wallrnemissivity, the channel dimension and the water spray on the heat removal. It has been foundrnthat the effect of the different baffle types and of the channel depth on the total heat removalrnis negligibly small, whereas a strong effect of the wall emissivity is obtained. The total heatrnremoval is improved significantly by using water spray onto the heated wall surface.