Measurement of core coolant flow velocities in PWRs using temperature: neutron noise cross correlation
Conference
·
OSTI ID:6887538
To study the relationship between the time delay inferred from this phase angle and core coolant flow velocities, noise measurements were performed at the Loss of Fluid Test Facility (LOFT) reactor and at a commercial PWR. In-core, self-powered neutron detector (SPND) noise at LOFT and ex-core ionization chamber noise at the commercial PWR were cross correlated with core exit temperature noise. Time delays were inferred from the slope of the phase angle versus frequency plots over the frequency range from 0.05 to 2.0 Hz.
- Research Organization:
- Oak Ridge National Lab., TN (USA); Tennessee Univ., Knoxville (USA); Analysis and Measurement Services, Knoxville, TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6887538
- Report Number(s):
- CONF-821103-40; ON: DE83003408
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
COOLANTS
COOLING SYSTEMS
CORRELATIONS
ENERGY SYSTEMS
FLOW RATE
FLUID FLOW
FLUID MECHANICS
HYDRAULICS
IONIZATION CHAMBERS
LOFT REACTOR
MEASURING INSTRUMENTS
MECHANICS
NEUTRON DETECTORS
PRIMARY COOLANT CIRCUITS
PWR TYPE REACTORS
RADIATION DETECTORS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR CORES
REACTOR NOISE
REACTORS
RESEARCH AND TEST REACTORS
SELF-POWERED DETECTORS
SELF-POWERED NEUTRON DETECTORS
TANK TYPE REACTORS
TEST REACTORS
VELOCITY
WATER COOLED REACTORS
WATER MODERATED REACTORS
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
COOLANTS
COOLING SYSTEMS
CORRELATIONS
ENERGY SYSTEMS
FLOW RATE
FLUID FLOW
FLUID MECHANICS
HYDRAULICS
IONIZATION CHAMBERS
LOFT REACTOR
MEASURING INSTRUMENTS
MECHANICS
NEUTRON DETECTORS
PRIMARY COOLANT CIRCUITS
PWR TYPE REACTORS
RADIATION DETECTORS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR CORES
REACTOR NOISE
REACTORS
RESEARCH AND TEST REACTORS
SELF-POWERED DETECTORS
SELF-POWERED NEUTRON DETECTORS
TANK TYPE REACTORS
TEST REACTORS
VELOCITY
WATER COOLED REACTORS
WATER MODERATED REACTORS