Axial power distribution monitor and display using outputs from ex-core detectors and thermocouples

Patent · Tue Sep 27 04:00:00 EDT 1988

OSTI ID:6565516

Impink, Jr, A J

This patent describes a method of monitoring the power distribution along a given axis of a core of a nuclear reactor which comprises the steps of: monitoring peripheral flux emanating from the core periphery with at least two detectors at positions exterior of the core, each detecting flux from a core quadrant and each of which detectors is located substantially along an axis substantially parallel to the given axis with the core periphery comprising no more than about two fuel assembly widths from an edge of the core; monitoring the temperature of reactor coolant flowing into the core, the temperature of the reactor coolant exiting the core in the core periphery from which a substantial portion of the detected peripheral flux emanates, and the coolant pressure of the reactor coolant system; determining the peripheral power distribution in the core periphery.

• Assignee: Westinghouse Electric Corp., Pittsburgh, PA
• Patent Number(s): US 4774050
• OSTI ID: 6565516
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220400* -- Nuclear Reactor Technology-- Control Systems
440300 -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
COOLANTS
COOLING SYSTEMS
DESIGN
DISPLAY DEVICES
ENERGY SYSTEMS
FUEL ASSEMBLIES
MEASURING INSTRUMENTS
MONITORING
NEUTRON FLUX
POWER DISTRIBUTION
POWER REACTORS
RADIATION DETECTORS
RADIATION FLUX
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR CORES
REACTOR MONITORING SYSTEMS
REACTOR SAFETY
REACTORS
SAFETY
TEMPERATURE MONITORING
THERMOCOUPLES