DIAGNOSTIC OF THE VVER REACTORS INTERNALS VIBRATIONS


Abstract eng:
Integrity of the VVER reactors internals is the important requirement of the NPPs long term operation. Two possible methods how to meet these requirements are: non destructive evaluation and diagnostic of the mechanical vibrations. The second one method is in the next analyzed. As the sensors are obviously used accelerometers, pressure pulsation sensors, ex-core ionization chambers and self powered neutron detectors. The significant changes of the frequency spectra are supposed to be symptom of the integrity changes..

Contributors:
Publisher:
Institute of Thermomechanics AS CR, v.v.i., Praha
Conference Title:
Conference Title:
Engineering Mechanics 2016
Conference Venue:
Svratka, CZ
Conference Dates:
2016-05-09 / 2016-05-12
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.



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 Record created 2016-08-16, last modified 2016-08-16


Original version of the author's contribution as presented on CD, id 107, section DYN.:
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