Patent ID: 9704604
Date: 2017-07-11
CPC Classifications: G21C,Y02E

Claim:
1. A system for controlled removal of a volatile fission product released by presence of a burn wave in a nuclear fission reactor fuel assembly for a nuclear fission reactor, the system comprising: an enclosure adapted to enclose a porous nuclear fuel body defining a plurality of pores having the volatile fission product therein; a fluid control subassembly coupled to said enclosure to remove volatile fission product from the porous nuclear fuel body, the fluid control subassembly including: a control unit coupled to the heat removal flow path and the fission product removal flow path of the fluid control subassembly, the control unit configured to control operation of said heat removal flow path and the fission product flow path by controlling operation of the heat removal flow path and the fission product flow path by selectively operating the heat removal flow path to provide fluid circulation through the enclosure to remove heat from the enclosure, and in response to a selective operator, the control unit selectively ceases operation of the heat removal flow path and selectively operates the fission product removal flow path to remove the fluid containing the volatile fission products from the enclosure, the selective operator including a fission product pressure level in the nuclear fission reactor.