Radiation heating of VVER-4440 thermocouple

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F20%3A43959356" target="_blank" >RIV/49777513:23220/20:43959356 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.hanser-elibrary.com/doi/10.3139/124.200002" target="_blank" >https://www.hanser-elibrary.com/doi/10.3139/124.200002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3139/124.200002" target="_blank" >10.3139/124.200002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Radiation heating of VVER-4440 thermocouple

Popis výsledku v původním jazyce

Thermocouple located near the coolant outlet of the fuel assembly head may indicate a temperature biased by radiation heating and subsequently affect accuracy of incore measurements. The analysis splits into two parts; coupled eutronphoton Monte Carlo transport to determine radiation heating that serves as the input to heat transfer calculation resulting in temperature bias evaluation. Various nuclear reactions contribute to radiation heating in the active volume of the thermocouple steel. Monte Carlo transport calculation of radiation heating for average fuel assembly in one of latest Dukovany NPP cycles was performed with MCNP code. Heating power was compared to values published previously for Paks and Kola NPPs. Heat transfer calculations were performed with TEPLO code developed in ŠKODA JS. Radiation heating can be considered as negligible if the axial shift between thermocouple active part and thermocouple socket is below 15 mm.

Název v anglickém jazyce

Radiation heating of VVER-4440 thermocouple

Popis výsledku anglicky

Thermocouple located near the coolant outlet of the fuel assembly head may indicate a temperature biased by radiation heating and subsequently affect accuracy of incore measurements. The analysis splits into two parts; coupled eutronphoton Monte Carlo transport to determine radiation heating that serves as the input to heat transfer calculation resulting in temperature bias evaluation. Various nuclear reactions contribute to radiation heating in the active volume of the thermocouple steel. Monte Carlo transport calculation of radiation heating for average fuel assembly in one of latest Dukovany NPP cycles was performed with MCNP code. Heating power was compared to values published previously for Paks and Kola NPPs. Heat transfer calculations were performed with TEPLO code developed in ŠKODA JS. Radiation heating can be considered as negligible if the axial shift between thermocouple active part and thermocouple socket is below 15 mm.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/TE01020455" target="_blank" >TE01020455: Centrum pokročilých jaderných technologií (CANUT)</a><br>

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

KERNTECHNIK

ISSN

0932-3902

e-ISSN

—

Svazek periodika

85

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

4

Strana od-do

301-304

Kód UT WoS článku

000576473700014

EID výsledku v databázi Scopus

2-s2.0-85093959337