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2022 SCALE Users' Group Workshop, Oak Ridge, TN (United States), 27-29 Apr 2022最新文献

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Criticality and Radiation Shielding Impacts of ENDF/B-VIII.0 [Slides] ENDF/B-VIII的临界性和辐射屏蔽影响。0(幻灯片)
2022 SCALE Users' Group Workshop, Oak Ridge, TN (United States), 27-29 Apr 2022 Pub Date : 2022-04-28 DOI: 10.2172/1886345
W. Marshall, C. Celik
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引用次数: 0
Calculation of Spent Fuel Pool Time-to-Boil using Polaris/ORIGAMI [Slides] 利用Polaris/ORIGAMI计算乏燃料池沸腾时间[幻灯片]
2022 SCALE Users' Group Workshop, Oak Ridge, TN (United States), 27-29 Apr 2022 Pub Date : 2022-04-28 DOI: 10.2172/1886343
Nicholas Kucinski, P. Stefanovic, W. Wieselquist, J. Clarity
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引用次数: 0
Illustration of Neutronic Decoupling in Fresh Fuel Storage Environments [Slides] 新燃料储存环境中中子解耦的说明[幻灯片]
2022 SCALE Users' Group Workshop, Oak Ridge, TN (United States), 27-29 Apr 2022 Pub Date : 2022-04-27 DOI: 10.2172/1886344
A. Shaw
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引用次数: 0
Polaris Depletion Calculations: Selected Best Practices [Slides] 北极星损耗计算:最佳实践选择[幻灯片]
2022 SCALE Users' Group Workshop, Oak Ridge, TN (United States), 27-29 Apr 2022 Pub Date : 2022-04-27 DOI: 10.2172/1886340
Nicholas Kucinski
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引用次数: 0
SCALE Sensitivity Tutorial [Slides] 缩放灵敏度教程[幻灯片]
2022 SCALE Users' Group Workshop, Oak Ridge, TN (United States), 27-29 Apr 2022 Pub Date : 2022-04-27 DOI: 10.2172/1886346
J. McDonnell, W. Wieselquist
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引用次数: 0
Using the Criticality Accident Alarm System modeling capabilities in SCALE [Slides] 在SCALE中使用临界事故报警系统建模功能[幻灯片]
2022 SCALE Users' Group Workshop, Oak Ridge, TN (United States), 27-29 Apr 2022 Pub Date : 2022-04-27 DOI: 10.2172/1886339
M. Dupont
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引用次数: 0
Sensitivity/Uncertainty Analysis for Nuclear Criticality Safety Validation [Slides] 核临界安全验证的敏感性/不确定性分析[幻灯片]
2022 SCALE Users' Group Workshop, Oak Ridge, TN (United States), 27-29 Apr 2022 Pub Date : 2022-04-27 DOI: 10.2172/1886342
W. Marshall
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引用次数: 0
Impacts of LEU+ and ATF on Fresh Fuel Storage Criticality Safety 低浓铀+和ATF对新鲜燃料储存临界安全的影响
2022 SCALE Users' Group Workshop, Oak Ridge, TN (United States), 27-29 Apr 2022 Pub Date : 2022-02-01 DOI: 10.2172/1843694
A. Shaw, J. Clarity
{"title":"Impacts of LEU+ and ATF on Fresh Fuel Storage Criticality Safety","authors":"A. Shaw, J. Clarity","doi":"10.2172/1843694","DOIUrl":"https://doi.org/10.2172/1843694","url":null,"abstract":"The use of increased fuel enrichment, which is still in the realm of low-enriched uranium (LEU) fuel, has been of interest to commercial light water reactor operators as part of the next iteration in fuel cycle technological advances and research and development. Using increased enrichment fuel, or high-assay LEU (HALEU), in power plants has clear benefits for being able to load cores with additional power-producing fuel. Although HALEU enrichments can range up to 20%, the more guarded approach of investigating enrichments above current fuels within 10% enrichment is referred to as LEU plus (LEU+) to reflect the less drastic change in operating conditions and requirements and similarity to current fuel cycles. Of additional interest and increasing maturity is the incorporation of accident-tolerant fuel (ATF) concepts, which are also applicable to the current fleet. This class of technologies involves changes such as cladding (e.g., chromium coating or FeCrAl) and fuel composition (e.g., chromia dopant) alterations to demonstrate improved fuel performance under accident scenarios. The ability to properly store fuel before and after residence time in the reactor is crucial to plant operation. Typically, this is done in either a new fuel vault (NFV) or spent fuel pool (SFP). Storing, loading, and unloading dozens of fuel assemblies within the same general area provides opportunities for obvious criticality concerns. These concerns are addressed with regulations to the subcriticality margin that the NFV and SFP must maintain in certain conditions. Adopting LEU+ fuel results in inherent reactivity increases, which are extremely relevant for safe fuel storage. Therefore, a clear understanding of the effects of LEU+ fuel and ATF on criticality safety margins to regulatory limits is required, as well as an understanding of the degree of absorber crediting under normal and accident conditions.","PeriodicalId":397936,"journal":{"name":"2022 SCALE Users' Group Workshop, Oak Ridge, TN (United States), 27-29 Apr 2022","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129784767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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