EVALUATION OF APPROXIMATIONS IN REACTOR PULSE
An evaluation of validity of theoretical pulse models (Fuchs-Hansen and Nordheim-Fuchs model) in reactor pulse modelling was performed by developing so called Improved Pulse Model. The effect of each of the five assumptions on the most important pulse physical parameters, maximal power, total releas...
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2021-01-01
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Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_08006.pdf |
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doaj-4ea2eef0146844659f9ab3948dd80d7e2021-08-02T16:01:00ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012470800610.1051/epjconf/202124708006epjconf_physor2020_08006EVALUATION OF APPROXIMATIONS IN REACTOR PULSEVavtar IngridSnoj LukaAn evaluation of validity of theoretical pulse models (Fuchs-Hansen and Nordheim-Fuchs model) in reactor pulse modelling was performed by developing so called Improved Pulse Model. The effect of each of the five assumptions on the most important pulse physical parameters, maximal power, total released energy and full width at half maximum was studied. In the Improved Pulse Model the assumptions are disposed out with the improvements, where to account the delayed neutrons the six point kinetic equations are solved, the temperature dependences of the temperature reactivity coefficient of fuel and specific heat are taken into account, also the final ejected time of transient control rod from reactor core, whose value of reactivity varies in height and the heat dissipation from the fuel are considered. It is found that the theoretical models predict a higher maximum power, lower total released energy and full width at half maximum than the Improved Pulse Model.https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_08006.pdfpulse experimenttriga reactorimproved pulse modelfuchs-hansen modelpulse physical parameters |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Vavtar Ingrid Snoj Luka |
spellingShingle |
Vavtar Ingrid Snoj Luka EVALUATION OF APPROXIMATIONS IN REACTOR PULSE EPJ Web of Conferences pulse experiment triga reactor improved pulse model fuchs-hansen model pulse physical parameters |
author_facet |
Vavtar Ingrid Snoj Luka |
author_sort |
Vavtar Ingrid |
title |
EVALUATION OF APPROXIMATIONS IN REACTOR PULSE |
title_short |
EVALUATION OF APPROXIMATIONS IN REACTOR PULSE |
title_full |
EVALUATION OF APPROXIMATIONS IN REACTOR PULSE |
title_fullStr |
EVALUATION OF APPROXIMATIONS IN REACTOR PULSE |
title_full_unstemmed |
EVALUATION OF APPROXIMATIONS IN REACTOR PULSE |
title_sort |
evaluation of approximations in reactor pulse |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2021-01-01 |
description |
An evaluation of validity of theoretical pulse models (Fuchs-Hansen and Nordheim-Fuchs model) in reactor pulse modelling was performed by developing so called Improved Pulse Model. The effect of each of the five assumptions on the most important pulse physical parameters, maximal power, total released energy and full width at half maximum was studied. In the Improved Pulse Model the assumptions are disposed out with the improvements, where to account the delayed neutrons the six point kinetic equations are solved, the temperature dependences of the temperature reactivity coefficient of fuel and specific heat are taken into account, also the final ejected time of transient control rod from reactor core, whose value of reactivity varies in height and the heat dissipation from the fuel are considered. It is found that the theoretical models predict a higher maximum power, lower total released energy and full width at half maximum than the Improved Pulse Model. |
topic |
pulse experiment triga reactor improved pulse model fuchs-hansen model pulse physical parameters |
url |
https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_08006.pdf |
work_keys_str_mv |
AT vavtaringrid evaluationofapproximationsinreactorpulse AT snojluka evaluationofapproximationsinreactorpulse |
_version_ |
1721230210452422656 |