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Annular core liquid-salt cooled reactor with multiple fuel and blanket zones

United States Patent

May 14, 2013
View the Complete Patent at the US Patent & Trademark Office
A liquid fluoride salt cooled, high temperature reactor having a reactor vessel with a pebble-bed reactor core. The reactor core comprises a pebble injection inlet located at a bottom end of the reactor core and a pebble defueling outlet located at a top end of the reactor core, an inner reflector, outer reflector, and an annular pebble-bed region disposed in between the inner reflector and outer reflector. The annular pebble-bed region comprises an annular channel configured for receiving pebble fuel at the pebble injection inlet, the pebble fuel comprising a combination of seed and blanket pebbles having a density lower than the coolant such that the pebbles have positive buoyancy and migrate upward in said annular pebble-bed region toward the defueling outlet. The annular pebble-bed region comprises alternating radial layers of seed pebbles and blanket pebbles.
Peterson; Per F. (Berkeley, CA)
The Regents of the University of California (Oakland, CA)
13/ 184,161
July 15, 2011
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under Contract No. DE-FC07-05ID14669 awarded by the DOE-NE Nuclear Energy Research Initiative. The Government has certain rights in the invention.