Nuclear fission reactor fuel assembly and system configured for controlled removal of a volatile fission product

摘要

A nuclear fission reactor fuel assembly and system configured for controlled removal of a volatile fission product and heat released by a burn wave in a traveling wave nuclear fission reactor and method for same. The fuel assembly comprises an enclosure adapted to enclose a porous nuclear fuel body having the volatile fission product therein. A fluid control subassembly is coupled to the enclosure and adapted to control removal of at least a portion of the volatile fission product from the porous nuclear fuel body. In addition, the fluid control subassembly is capable of circulating a heat removal fluid through the porous nuclear fuel body in order to remove heat generated by the nuclear fuel body.

主权项

1. A method of operating a nuclear fission reactor fuel assembly configured for controlled removal of a volatile fission product released by nuclear fission reactor, comprising:
using an enclosure enclosing a porous nuclear fuel body having a fissile material and the volatile fission product therein; and using a fluid control subassembly coupled to the enclosure to control removal of at least a portion of the volatile fission product from the porous nuclear fuel body at a plurality of locations of the nuclear fission reactor by circulating a fission product removal fluid through the porous nuclear fuel body using the fluid control subassembly, so that at least a portion of the volatile fission product is removed from the porous nuclear fuel body and the enclosure while retaining the fissile material in the enclosure while the fluid control subassembly circulates the fission product removal fluid through the porous nuclear fuel body in the enclosure.