Assessment of Effect of Dissolved Species on Stable Droplet Sizes in PWR Containments Post Fault

摘要

The stability of the size distribution of water droplets suspended in the containment atmosphere arising from the fine balance between the raising of the water vapour pressure above a curved surface and its lowering due to the presence of dissolved species is considered. A model for predicting the stable size is developed from established physico-chemical theory and illustrated by application to a case where the suspended aerosol arises from fragmentation of a flashing water jet. Consideration is also given to the possible impact kinetic effects may have on the droplet behaviour. (ERA citation 13:000693)