SMALL LOAD-FOLLOWING NUCLEAR POWER GENERATION SYSTEM USING HEAT DEFORMATION OF REFLECTOR CAUSED BY THERMAL EXPANSION PHENOMENON

WIPO Patent Application WO/2016/157961

A1

The present invention provides a small nuclear power generation system that allows easy load-following control, is safe, and is able to achieve reductions in production cost and costs for maintenance and management. The small nuclear power generation system is provided with a small reactor that adopts load-following control and that is provided with: a fuel assembly core 4 that uses metallic fuel containing one or both of uranium (235, 238) and plutonium-239; a reactor vessel 1 that houses the fuel assembly core 4; metallic sodium filled in the reactor vessel 1 and heated by the fuel assembly core 4; and a neutron reflector 2 that maintains the effective multiplication factor of neutrons emitted from the fuel assembly core 4 at approximately one or more to bring the core into a critical state, wherein a spring-shaped or spiral-shaped metallic member is coupled to the neutron reflector, and heat deformation of the metallic member due to the temperature of coolant metallic sodium is used to control fast neutron reflection efficiency of the neutron reflector to enable control of the effective multiplication factor of the neutrons.

SUMITA OSAO (JP)
UENO ISAO (JP)
YOKOMINE TAKEHIKO (JP)

PCT/JP2016/052053

October 06, 2016

January 25, 2016

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CLEAR INC (JP)

G21C7/28; G21C1/02; G21C3/60; G21C5/00; G21C7/24; G21D5/14

WO2013094196A1

2013-06-27

JPH0972980A	1997-03-18
JP2001208884A	2001-08-03
JP2000088987A	2000-03-31
JP2008122248A	2008-05-29
JP2003114292A	2003-04-18
JPS61228381A	1986-10-11

See also references of EP 3166113A4

ASAMURA PATENT OFFICE, p. c. (JP)
Patent business corporation Asamura patent firm (JP)

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