| Title: | The 0E2 benchmarks for PWR ▫$UO_{2}$▫ decay heat : an analysis from the NEA WPNCS |
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| Authors: | ID Rochman, Dimitri (Author)
ID Kromar, Marjan, Institut "Jožef Stefan" (Author)
ID Žerovnik, Gašper (Author), et al. |
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| Files: |  URL - Source URL, visit https://www.epj-n.org/articles/epjn/full_html/2026/01/epjn20260006/epjn20260006.html
 PDF - Presentation file, download (1,55 MB)
MD5: 59F4CD87DC21115107C30048C1428AEF
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IJS - Jožef Stefan Institute
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| Abstract: | This paper presents the work performed in the subgroup 16 of the Working Party for Nuclear Criticality Safety (WPNCS) of the OECD Nuclear Energy Agency. The main goal was to define two decay heat benchmarks for Spent Nuclear Fuel (one pincell and one assembly), perform calculations and compare and analyze the results in light of existing calorimetric measurements. The selected case is the PWR UO2 assembly 0E2, irradiated at the Ringhals-3 reactor and measured at the Clab facility in Sweden. In total, 21 institutes worldwide participated to the exercise, leading to 55 calculated results (named C). It was found that the measured decay heat values (E) can be satisfactorily reproduced with two-dimensional assembly calculations, leading to an average C/E value of 0.99, with an uncertainty (or one standard deviation) of ±0.01. |
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| Keywords: | spent nuclear fuel, decay heat, nuclear criticality safety |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 11.02.2026 |
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| Article acceptance date: | 08.04.2026 |
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| Publication date: | 19.06.2026 |
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| Publisher: | EDP Sciences |
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| Year of publishing: | 2026 |
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| Number of pages: | str. 1-51 |
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| Numbering: | Vol. 12, article no. ǂ20 |
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| Source: | Francija |
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| PID: | 20.500.12556/DiRROS-30838  |
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| UDC: | 621.039 |
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| ISSN on article: | 2491-9292 |
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| DOI: | 10.1051/epjn/2026011 |
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| COBISS.SI-ID: | 283625219 |
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| Copyright: | © D.A. Rochman et al. |
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| Note: | Soavtor iz Slovenije: Marjan Kromar;
Nasl. z nasl. zaslona;
Opis vira z dne 3. 7. 2026;
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| Publication date in DiRROS: | 07.07.2026 |
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| Views: | 103 |
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| Downloads: | 95 |
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