BEAVRS pin-by-pin calculations with Ants-SUBCHANFLOW-SuperFINIX code system

Riku Tuominen; Ville Valtavirta

doi:10.1016/j.anucene.2022.109447

BEAVRS pin-by-pin calculations with Ants-SUBCHANFLOW-SuperFINIX code system

Riku Tuominen (Corresponding Author), Ville Valtavirta

BA4501 Reactor analysis

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

In this work the nodal neutronics code Ants is coupled with the subchannel code SUBCHANFLOW and the fuel behavior code SuperFINIX within VTT’s Kraken framework in order to evaluate thermal margins. The coupling is implemented using Cerberus which is the multi-physics driver of Kraken. The capabilities of the new coupled code system are demonstrated by modeling the first operating cycle of BEAVRS. Calculated and measured boron concentrations are compared and selected pin-by-pin results are presented at 3 points during the operating cycle. In addition, the modularity of the Kraken framework is highlighted by modeling the depletion of a 3D single fuel assembly with both Ants and Serpent based code systems. This capability can be used to assess the accuracy of nodal neutronics vs continuous energy Monte Carlo in the estimation of thermal margins. Finally, some possible topics for future work are introduced.

Original language	English
Article number	109447
Journal	Annals of Nuclear Energy
Volume	180
DOIs	https://doi.org/10.1016/j.anucene.2022.109447
Publication status	Published - Jan 2023
MoE publication type	A1 Journal article-refereed

Keywords

Ants
Depletion
Kraken
Multi-physics

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10.1016/j.anucene.2022.109447Licence: CC BY

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title = "BEAVRS pin-by-pin calculations with Ants-SUBCHANFLOW-SuperFINIX code system",

abstract = "In this work the nodal neutronics code Ants is coupled with the subchannel code SUBCHANFLOW and the fuel behavior code SuperFINIX within VTT{\textquoteright}s Kraken framework in order to evaluate thermal margins. The coupling is implemented using Cerberus which is the multi-physics driver of Kraken. The capabilities of the new coupled code system are demonstrated by modeling the first operating cycle of BEAVRS. Calculated and measured boron concentrations are compared and selected pin-by-pin results are presented at 3 points during the operating cycle. In addition, the modularity of the Kraken framework is highlighted by modeling the depletion of a 3D single fuel assembly with both Ants and Serpent based code systems. This capability can be used to assess the accuracy of nodal neutronics vs continuous energy Monte Carlo in the estimation of thermal margins. Finally, some possible topics for future work are introduced.",

keywords = "Ants, Depletion, Kraken, Multi-physics",

author = "Riku Tuominen and Ville Valtavirta",

note = "Funding Information: The authors would like to acknowledge the help of U. Imke with the SCF source code modifications and the previous work of M. Garc{\'i}a related to SCF preprocessor and SCF C API. This work has received funding from the LONKERO project, Finland under the Finnish National Research Programme on Nuclear Power Plant Safety, SAFIR2022. ",

year = "2023",

month = jan,

doi = "10.1016/j.anucene.2022.109447",

language = "English",

volume = "180",

journal = "Annals of Nuclear Energy",

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T1 - BEAVRS pin-by-pin calculations with Ants-SUBCHANFLOW-SuperFINIX code system

AU - Tuominen, Riku

AU - Valtavirta, Ville

N1 - Funding Information: The authors would like to acknowledge the help of U. Imke with the SCF source code modifications and the previous work of M. García related to SCF preprocessor and SCF C API. This work has received funding from the LONKERO project, Finland under the Finnish National Research Programme on Nuclear Power Plant Safety, SAFIR2022.

PY - 2023/1

Y1 - 2023/1

N2 - In this work the nodal neutronics code Ants is coupled with the subchannel code SUBCHANFLOW and the fuel behavior code SuperFINIX within VTT’s Kraken framework in order to evaluate thermal margins. The coupling is implemented using Cerberus which is the multi-physics driver of Kraken. The capabilities of the new coupled code system are demonstrated by modeling the first operating cycle of BEAVRS. Calculated and measured boron concentrations are compared and selected pin-by-pin results are presented at 3 points during the operating cycle. In addition, the modularity of the Kraken framework is highlighted by modeling the depletion of a 3D single fuel assembly with both Ants and Serpent based code systems. This capability can be used to assess the accuracy of nodal neutronics vs continuous energy Monte Carlo in the estimation of thermal margins. Finally, some possible topics for future work are introduced.

AB - In this work the nodal neutronics code Ants is coupled with the subchannel code SUBCHANFLOW and the fuel behavior code SuperFINIX within VTT’s Kraken framework in order to evaluate thermal margins. The coupling is implemented using Cerberus which is the multi-physics driver of Kraken. The capabilities of the new coupled code system are demonstrated by modeling the first operating cycle of BEAVRS. Calculated and measured boron concentrations are compared and selected pin-by-pin results are presented at 3 points during the operating cycle. In addition, the modularity of the Kraken framework is highlighted by modeling the depletion of a 3D single fuel assembly with both Ants and Serpent based code systems. This capability can be used to assess the accuracy of nodal neutronics vs continuous energy Monte Carlo in the estimation of thermal margins. Finally, some possible topics for future work are introduced.

KW - Ants

KW - Depletion

KW - Kraken

KW - Multi-physics

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DO - 10.1016/j.anucene.2022.109447

M3 - Article

SN - 0306-4549

VL - 180

JO - Annals of Nuclear Energy

JF - Annals of Nuclear Energy

M1 - 109447

ER -

BEAVRS pin-by-pin calculations with Ants-SUBCHANFLOW-SuperFINIX code system

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Keywords

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