THERMO-ACOUSTIC NUCLEAR POWER DISTRIBUTION MEASUREMENT ASSEMBLY
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United States of America Patent
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Issued Date -
Oct 30, 2014
app pub date -
Apr 24, 2013
filing date -
Apr 24, 2013
priority date (Note) -
Abandoned
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Abstract
A nuclear power distribution measurement assembly that is sized to fit within an instrumentation thimble of a nuclear fuel assembly, that employs a spaced tandem arrangement of thermo-acoustic engines, each of which has a heat source side that is insulated from the reactor coolant traversing the nuclear core in which the fuel assembly is to be placed and a cold side housing a resonator chamber with enhanced thermal conductance to the coolant. The resonator chamber of each of the thermo-acoustic engines is of a different length to generate a different frequency whose amplitude is proportional to the neutron activity at the axial and radial position of the thermo-acoustic engine. The frequency identifies the measurement assembly's position. Acoustic telemetry is employed to monitor the acoustic waves generated by the individual thermo-acoustic engines to provide a remote reading of the axial and radial power distribution of a reactor core.
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