Neutronic analysis of boiling water reactor in-core detector noise
Journal Article
·
· Nucl. Technol.; (United States)
OSTI ID:5847689
The response of boiling water reactor in-core detectors undergoing vibration has been calculated. A neutronic model based on calculating the fission activity at a detector position in a planar multibundle environment was employed. The model used eight energy groups and two-dimensional Cartesian geometry in a discrete-ordinates transport approximation. The in-core detector responses due to various detector displacements were calculated as a function of channel box corner wear with different effective in-channel voids, bypass voids, and instrument tube voids. The calculated noise was found to have a linear dependence on channel box wear. This was corroborated by measurements. An increase in in-channel voids was found to increase the noise, while an increase in bypass and instrument tube voids decreased the noise. The presence of a nearby control blade increased the noise.
- Research Organization:
- Brookhaven National Lab., Upton, NY
- OSTI ID:
- 5847689
- Journal Information:
- Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 45:1; ISSN NUTYB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
BWR TYPE REACTORS
DISCRETE ORDINATE METHOD
IN CORE INSTRUMENTS
MATHEMATICAL MODELS
MECHANICAL VIBRATIONS
REACTOR INSTRUMENTATION
REACTOR NOISE
REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS
210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
BWR TYPE REACTORS
DISCRETE ORDINATE METHOD
IN CORE INSTRUMENTS
MATHEMATICAL MODELS
MECHANICAL VIBRATIONS
REACTOR INSTRUMENTATION
REACTOR NOISE
REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS