Non-destructive testing of mock-up of reactor pressure vessel cavity

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F23%3AN0000197" target="_blank" >RIV/26722445:_____/23:N0000197 - 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

Non-destructive testing of mock-up of reactor pressure vessel cavity

Original language description

Two concrete blocks 1000×600×300 mm, each lined from one side by 10 mm thick carbon steel liner, were designed to simulate concrete cavity around reactor pressure vessel (RPV) in Temelin nuclear power plant (NPP). Each block contained two cylindrical holes with 6.5 mm thick carbon steel liners representing channels for ionization chamber in concrete biological shield (CBS). Both blocks were curved as a section of a tube. Parallel work was development of non-destructive testing methods able to determine any defect in the block. Four concrete tubes with artificial defects were designed and manufactured for this purpose. Each tube was surrounded from inside by 6 mm thick carbon steel plate and from outside by 7 mm thick polyethylene tube. Ultrasonic pulse-echo, impact-echo, magnetic memory method (MMM), indirect ultrasonic pulse method and non-linear wave modulation spectroscopy (NWMS) were employed. The best result were reached by MMM and NWMS. Simple one-axis manipulators were developed for both methods to be applied in the tubes. Moreover, NWMS was used for testing of irradiated concrete block from the fifth unit of NPP Greifswald.

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

<a href="/en/project/VI20192022154" target="_blank" >VI20192022154: Biological shielding concrete testing after irradiation in a nuclear reactor</a><br>

Continuities

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

Publication year

2023

Confidentiality

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

Article name in the collection

Proceedings of the international conference on non-destructive evaluation of concrete in nuclar applications

ISBN

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ISSN

1799-490X

e-ISSN

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Number of pages

7

Pages from-to

148-154

Publisher name

Aalto University

Place of publication

Helsinki

Event location

Espoo, Finland

Event date

Jan 25, 2023

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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