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Statements

Subject Item
n2:RIV%2F49777513%3A23220%2F13%3A43920909%21RIV15-TA0-23220___
rdf:type
skos:Concept n15:Vysledek
dcterms:description
Fuel depletion calculation is computationally expensive. Deterministic transport code requires large amount of computational time that can be cut down by decreasing the number of energy groups. Current multigroup energy structures with about 200 groups were generated by merging broader structures and subsequent ad hoc adding of energy boundaries. Recently, TSUNAMI sensitivity and uncertainty code sequence from SCALE code package was developed and released. TSUNAMI allows sensitivity calculations that can be used in various application areas, one of them is energy structure improvement and development. TSUNAMI code sequence was used to generate sensitivity coefficients describing sensitivity of multiplication coefficient to neutron energy. Based on sensitivity coefficient values during depletion, importance of energy groups was defined. Initial 238-group energy structure was collapsed to new one according to importance data. Fuel depletion calculation with TRITON code sequence from SCALE code package was executed and multiplication coefficient during depletion was compared. VVER-1000 fuel assembly with Eu and Er burnable absorbers were analyzed. Fuel depletion calculation is computationally expensive. Deterministic transport code requires large amount of computational time that can be cut down by decreasing the number of energy groups. Current multigroup energy structures with about 200 groups were generated by merging broader structures and subsequent ad hoc adding of energy boundaries. Recently, TSUNAMI sensitivity and uncertainty code sequence from SCALE code package was developed and released. TSUNAMI allows sensitivity calculations that can be used in various application areas, one of them is energy structure improvement and development. TSUNAMI code sequence was used to generate sensitivity coefficients describing sensitivity of multiplication coefficient to neutron energy. Based on sensitivity coefficient values during depletion, importance of energy groups was defined. Initial 238-group energy structure was collapsed to new one according to importance data. Fuel depletion calculation with TRITON code sequence from SCALE code package was executed and multiplication coefficient during depletion was compared. VVER-1000 fuel assembly with Eu and Er burnable absorbers were analyzed.
dcterms:title
Multigroup energy structure for BA fuel depletion analysis Multigroup energy structure for BA fuel depletion analysis
skos:prefLabel
Multigroup energy structure for BA fuel depletion analysis Multigroup energy structure for BA fuel depletion analysis
skos:notation
RIV/49777513:23220/13:43920909!RIV15-TA0-23220___
n4:aktivita
n13:P
n4:aktivity
P(TE01020455)
n4:dodaniDat
n14:2015
n4:domaciTvurceVysledku
n8:5419654 n8:6572170 n8:5400317 n8:7222467
n4:druhVysledku
n9:O
n4:duvernostUdaju
n16:S
n4:entitaPredkladatele
n7:predkladatel
n4:idSjednocenehoVysledku
90057
n4:idVysledku
RIV/49777513:23220/13:43920909
n4:jazykVysledku
n5:eng
n4:klicovaSlova
burnable absorber; depletion; nuclear fuel
n4:klicoveSlovo
n11:depletion n11:nuclear%20fuel n11:burnable%20absorber
n4:kontrolniKodProRIV
[1F069F1B55FF]
n4:obor
n10:JF
n4:pocetDomacichTvurcuVysledku
4
n4:pocetTvurcuVysledku
4
n4:projekt
n12:TE01020455
n4:rokUplatneniVysledku
n14:2013
n4:tvurceVysledku
Prehradný, Jan Piterka, Luboš Škoda, Radek Lovecký, Martin
n17:organizacniJednotka
23220