Patent ID: 7707741
Filing Date: 2010-05-04
Classification: F26B,G21C,G21F,Y02E

Abstract:
1. A method of drying a cavity loaded with high level waste (“HLW”) comprising: a) flowing a non-reactive gas through the cavity; b) repetitively measuring dew point temperature of the non-reactive gas exiting the cavity; c) upon the dew point temperature of the non-reactive gas exiting the cavity being measured to be at or below a predetermined dew point temperature, activating a timer set for a predetermined period of time; d) continuing to repetitively measure the dew point temperature of the non-reactive gas exiting the cavity while the timer is activated; e) wherein if during the performance of step d) the dew point temperature of the non-reactive gas is measured to rise above the predetermined dew point temperature prior to the predetermined period of time expiring, deactivating and resetting the timer and returning to step b); and f) wherein if during the performance step d) the predetermined period of time expires without the dew point temperature of the non-reactive gas being measured to rise above the predetermined dew point temperature, discontinuing the flow of the non-reactive gas and sealing the cavity.