Determination of power density in VVER-1000 Mock-Up in LR-0 reactor
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F17%3AN0000052" target="_blank" >RIV/26722445:_____/17:N0000052 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/epjconf/201715302001" target="_blank" >http://dx.doi.org/10.1051/epjconf/201715302001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/epjconf/201715302001" target="_blank" >10.1051/epjconf/201715302001</a>
Alternative languages
Result language
angličtina
Original language name
Determination of power density in VVER-1000 Mock-Up in LR-0 reactor
Original language description
The pin power density is an important quantity which has to be monitored during the reactor operation, for two main reasons. Firstly, it is part of the limits and conditions of safe operation and, secondly, it is source term in neutron transport calculations used for the adequate assessing of the state of core structures and pressure vessel material. It is often calculated using deterministic codes which may have problems with an adequate definition of boundary conditions in subcritical regions. This may lead to overestimation of real situation, and therefore the validation of the utility codes contributes not only to better fuel utilization, but also to more precise description of radiation situation in structural components of core. Current paper presents methods developed at LR-0 reactor, as well as selected results for pin power density measurement in peripheral regions of VVER-1000 mock-up. The presented data show that the results of a utility diffusion code at core boundary overestimate the measurement. This situation, however satisfactory safe, may lead to unduly conservative approach in the determination of radiation damage of core structures.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
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/LQ1603" target="_blank" >LQ1603: Research for SUSEN</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
ICRS-13 & RPSD-2016, 13TH INTERNATIONAL CONFERENCE ON RADIATION SHIELDING & 19TH TOPICAL MEETING OF THE RADIATION PROTECTION AND SHIELDING DIVISION OF THE AMERICAN NUCLEAR SOCIETY - 2016, EPJ Web of Conferences 153
ISBN
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ISSN
2100-014X
e-ISSN
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Number of pages
6
Pages from-to
1-6
Publisher name
EDP Sciences
Place of publication
Coutaboeuf, France
Event location
Paris, France
Event date
Sep 11, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000426429200027