Development status of drying simulation code for waste storage

Terada, Atsuhiko; Yamagishi, Isao; Hino, Ryutaro

no journal, , 

At the decommissioning of the Fukushima Daiichi Nuclear Power Station, it is necessary to store seawater containing spent radioactive wastes such as cesium adsorbents safely. Since the increased seawater concentration with temperature affects the corrosion rate of vessel materials as a part of drying phenomena, a two-dimensional drying-process simulation code which installed correlations of capillary action, evaporation rate etc. has been developed in order to predict above-mentioned momentary situations caused by drying. Trial analytical results obtained with the code agreed well with the experimental results obtained under simple experimental conditions using an electric heater and a zeolite packed bed.