Hot Functional Tests – passivation of a primary circuit of Mochovce nuclear power plant Unit 3

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F20%3AN0000090" target="_blank" >RIV/26722445:_____/20:N0000090 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.vgb.org/pt_03_20.html" target="_blank" >https://www.vgb.org/pt_03_20.html</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Hot Functional Tests – passivation of a primary circuit of Mochovce nuclear power plant Unit 3

Popis výsledku v původním jazyce

This article describes a methodology of creation and evaluation of a protective passivation layer on the inner surfaces of the primary circuit in a nuclear power plant. The article has two parts. The first part describes a theory and technological procedure of the formation of a protective oxidic corrosion layer during hot functional tests. These are illustrated in the example of hot functional tests at the Unit 3 of Mochovce nuclear power plant. In the second part of the article, the successful passivation is confirmed by the demonstrated through analysis of the formed layer. The evaluation of the successful passivation based on the characterization of the corrosion layer is shown. Based on the proposed chemical program, passivation was carried out in February and March 2019 at Unit 3 of Mochovce nuclear power plant. The resulting passivation layer was characterized by using selected analytical methods. The developed evaluation methodology uses several analytical techniques (Raman microscopy, Scanning electron microscopy, X-Ray Photoelectron Spectroscopy and others). The analytical techniques used were chosen to be complementary to each other, which contributes to the complexity of the sample evaluation. The conclusion of the evaluation was that a high-quality protective passivation layer, which corresponds with the industrial practice, was developed during hot functional tests.

Název v anglickém jazyce

Hot Functional Tests – passivation of a primary circuit of Mochovce nuclear power plant Unit 3

Popis výsledku anglicky

This article describes a methodology of creation and evaluation of a protective passivation layer on the inner surfaces of the primary circuit in a nuclear power plant. The article has two parts. The first part describes a theory and technological procedure of the formation of a protective oxidic corrosion layer during hot functional tests. These are illustrated in the example of hot functional tests at the Unit 3 of Mochovce nuclear power plant. In the second part of the article, the successful passivation is confirmed by the demonstrated through analysis of the formed layer. The evaluation of the successful passivation based on the characterization of the corrosion layer is shown. Based on the proposed chemical program, passivation was carried out in February and March 2019 at Unit 3 of Mochovce nuclear power plant. The resulting passivation layer was characterized by using selected analytical methods. The developed evaluation methodology uses several analytical techniques (Raman microscopy, Scanning electron microscopy, X-Ray Photoelectron Spectroscopy and others). The analytical techniques used were chosen to be complementary to each other, which contributes to the complexity of the sample evaluation. The conclusion of the evaluation was that a high-quality protective passivation layer, which corresponds with the industrial practice, was developed during hot functional tests.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

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

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

VGB Power Tech

ISSN

1435-3199

e-ISSN

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Svazek periodika

2020

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

5

Strana od-do

41-45

Kód UT WoS článku

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EID výsledku v databázi Scopus

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