Back to results
US 10,854,343 B2Granted
Nuclear fuel assembly for a thermal neutron reactor
AssigneeKorea Advanced Institute of Science and Technology
InventorsYonghee Kim, Chihyung Kim, Jeong Ik Lee
Life of this patent
Estimating the term…
Abstract
The present invention relates to a nuclear reactor, more precisely a passive safety device applicable to a thermal neutron reactor and a nuclear fuel assembly equipped with the same. The nuclear fuel assembly for a thermal neutron reactor of the present invention includes multiple fuel rods; multiple guide thimbles arranged between the fuel rods; and a passive safety device including neutron absorber parts which are inserted in one or more guide thimbles.
Claims11
A nuclear fuel assembly for a thermal neutron reactor comprising:
- multiple fuel rods;
- multiple guide thimbles arranged between the fuel rods;
- and
- a passive safety device inserted in at least one guide thimbles,
- wherein the passive safety device comprises:
- a vertically extending passive safety device guide tube coaxially aligned with the guide tube in which it is inserted and having one or more coolant inflow/outflow holes providing coolant flow between an interior and exterior of the passive safety device guide tube;
- and
- a buoyancy providing part including a neutron absorber in the interior space of the passive safety device guide tube so as to be movable up and down therein.
5 more elements
Dependencies are inferred from the claim text.