Localization Of Loose Part Impacts On The General 3d Surface Of The Nuclear Power Plant Coolant Circuit Components

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F17%3A43931902" target="_blank" >RIV/49777513:23520/17:43931902 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0149197017301099" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0149197017301099</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.pnucene.2017.05.004" target="_blank" >10.1016/j.pnucene.2017.05.004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Localization Of Loose Part Impacts On The General 3d Surface Of The Nuclear Power Plant Coolant Circuit Components

Popis výsledku v původním jazyce

A fundamental monitoring system in nuclear power plants is the so called loose part monitoring system (LPMS) detecting, localizing and specifying the loose parts (such as rivets, nuts, …) within the reactor coolant system. The loose parts could drift along the coolant flow and cause damage to the coolant system components, leading to power plant failure. One of the main tasks is a precise localization of the loose part impacts in order to identify the loose part and trace its motion in the system. Current localization methods are based on the time-of-arrival evaluation of mechanical waves travelling through mostly metal components from the impact place to the sensor positions. Diverse methods have been proposed, such as hyperbola or circle intersection methods, which are more or less analytical methods with a low grade of algorithmization, thus requiring a portion of manual effort. The proposed 3D localization method is flexible and efficient based on an algorithm for computing the shortest path along a general surface of components. This paper also presents a deeper insight into the mechanisms of the 3D localization method by analyzing its error and structural limitations. In the end, results obtained in an experiment on a real reactor vessel are presented.

Název v anglickém jazyce

Localization Of Loose Part Impacts On The General 3d Surface Of The Nuclear Power Plant Coolant Circuit Components

Popis výsledku anglicky

A fundamental monitoring system in nuclear power plants is the so called loose part monitoring system (LPMS) detecting, localizing and specifying the loose parts (such as rivets, nuts, …) within the reactor coolant system. The loose parts could drift along the coolant flow and cause damage to the coolant system components, leading to power plant failure. One of the main tasks is a precise localization of the loose part impacts in order to identify the loose part and trace its motion in the system. Current localization methods are based on the time-of-arrival evaluation of mechanical waves travelling through mostly metal components from the impact place to the sensor positions. Diverse methods have been proposed, such as hyperbola or circle intersection methods, which are more or less analytical methods with a low grade of algorithmization, thus requiring a portion of manual effort. The proposed 3D localization method is flexible and efficient based on an algorithm for computing the shortest path along a general surface of components. This paper also presents a deeper insight into the mechanisms of the 3D localization method by analyzing its error and structural limitations. In the end, results obtained in an experiment on a real reactor vessel are presented.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20205 - Automation and control systems

Projekt

<a href="/cs/project/LO1506" target="_blank" >LO1506: Podpora udržitelnosti centra NTIS - Nové technologie pro informační společnost</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

PROGRESS IN NUCLEAR ENERGY

ISSN

0149-1970

e-ISSN

—

Svazek periodika

99

Číslo periodika v rámci svazku

AUG 2017

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

140-146

Kód UT WoS článku

000404310500016

EID výsledku v databázi Scopus

2-s2.0-85019655065