Radiation heating of VVER-4440 thermocouple
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Radiation heating of VVER-4440 thermocouple
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20305 - Nuclear related engineering; (nuclear physics to be 1.3);
Result continuities
Project
<a href="/en/project/TE01020455" target="_blank" >TE01020455: Centre for Advanced Nuclear Technologies (CANUT)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
KERNTECHNIK
ISSN
0932-3902
e-ISSN
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Volume of the periodical
85
Issue of the periodical within the volume
4
Country of publishing house
DE - GERMANY
Number of pages
4
Pages from-to
301-304
UT code for WoS article
000576473700014
EID of the result in the Scopus database
2-s2.0-85093959337