Heat Transfer and Thermal Tests of a 100-Ton Class Dry-Type Spent Fuel Transport Cask

In order to transport spent fuel, both a wet-type transport cask using water as the coolant and a dry-type transport cask using gas as the coolant are used. We have been able to verify the safety of the dry-type cask based on the demonstration test results which have so for been carried out on the wet-type cask, paticulay with respect to drop-test behavior. The details of these data are described in Demenstration Test of 100 ton Class Spent Fuel Transport Cask, T.Nagakura et al.,l986. With regard to temperatures in each part of the cask for heat transfer and thermal tests, however, no demonstration data is available because the method for removing heat is different.