Fuel assembly deformation measurements

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F19%3AN0000180" target="_blank" >RIV/26722445:_____/19:N0000180 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Fuel assembly deformation measurements

Original language description

The periodic measurements of nuclear fuel geometry state provide the answer about their deformation over the course of their performance in the nuclear reactor. A very big bunch of data can be obtained from the visual inspection – one of the most popular types of the inspection conducted over the nuclear fuel – mainly concerning the surface state of the nuclear fuel. In the case of the geometry deformation measurements, using the visual system relays on the image postprocessing. This approach, however allowing obtaining a big amount of data for further analysis, has relatively low precision and is very subjective. To reach a higher level of precision and to be less vulnerable to a random error more advanced system has to be implemented, possibly a supplementary system. Such an opportunity offers the ultrasonic (UT) system which has been developed over last decades. The UT measuring system, although immature when compared to the visual one, has the steady precision of far less than 1 mm. Currently, the future of the UT measuring system is very promising as it is being under research and development around the world. CVR has joined this pursuit and the first outputs assure the advantages of the system, confirming the system’s precision oscillating around 0.1 mm. The UT system is in this way a perfect supplement to the visual system or a substitution in the case of geometry measurements only.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of the12th International Conference on WWER Fuel Performance, Modelling and Experimental Support

ISBN

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ISSN

1313-4531

e-ISSN

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Number of pages

10

Pages from-to

1-10

Publisher name

Bulgarian Academy of Sciences

Place of publication

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Event location

Nassebar, Bulgaria

Event date

Sep 16, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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