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Stability monitor experience in German BWRs (boiling water reactor)

Conference · · Transactions of the American Nuclear Society; (United States)
OSTI ID:5477855
 [1];  [2];  [3];  [4]
  1. S. M. Stoller Corporation, Pleasantville, NY (USA)
  2. NIS Ingenieurgesellschaft mbH, Hanau (West Germany)
  3. Kernkraftwerk Gundremmingen Betriebsgesellschaft mbH (West Germany)
  4. Kernkraftwerk Isar mbH, Munich (West Germany)
+ Show Author Affiliations
A digital stability monitor developed by NIS Ingenieurgesellschaft MBH, operable on a personal computer, is in use at three boiling water reactor (BWR) plants in the Federal Republic of Germany (FRG). The device has received the approval of an FRG licensing authority. It has been in operation for 5 yr. The stability monitor is a measurement device used to accurately determine and confirm the boundaries of the exclusion region on the operating power-flow map, and to permit controlled operation through such regions. This is achieved via neutron noise measurements converted to direct readout of decay ratios. It has satisfied regulatory requirements by defining potential unstable operating regions at Kernkraftwerk Isar in the FRG and the high power density Gundremmingen (KRB Units B and C) BWRs.
OSTI ID:
5477855
Report Number(s):
CONF-891103--
Conference Information:
Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 60
Country of Publication:
United States
Language:
English

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21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
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220900* -- Nuclear Reactor Technology-- Reactor Safety
ACCURACY
ALGORITHMS
ANALOG-TO-DIGITAL CONVERTERS
AUTOMATION
BWR TYPE REACTORS
COMPUTERS
CONTROL ROOMS
CONTROL SYSTEMS
DEVELOPED COUNTRIES
DIGITAL COMPUTERS
ELECTRONIC EQUIPMENT
EQUIPMENT
EUROPE
FEDERAL REPUBLIC OF GERMANY
FOURIER TRANSFORMATION
INTEGRAL TRANSFORMATIONS
LICENSING
MATHEMATICAL LOGIC
MATHEMATICAL MODELS
MICROCOMPUTERS
OPERATION
PERSONAL COMPUTERS
POWER DISTRIBUTION
REACTOR COMPONENTS
REACTOR CONTROL SYSTEMS
REACTOR CORES
REACTOR INSTRUMENTATION
REACTOR LICENSING
REACTOR MONITORING SYSTEMS
REACTOR NOISE
REACTOR OPERATION
REACTOR SAFETY
REACTOR STABILITY
REACTOR START-UP
REACTORS
SAFETY
SIGNAL CONDITIONING
STABILITY
START-UP
TRANSFORMATIONS
WATER COOLED REACTORS
WATER MODERATED REACTORS