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Sensitivity and Uncertainty Analysis of Debris Bed Coolability
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Power Safety.ORCID iD: 0000-0002-0683-9136
2011 (English)In: TheĀ 14th International Topical Meeting on Nuclear Reactor Thermalhydraulics (NURETH-14), 2011Conference paper, Published paper (Refereed)
Abstract [en]

Theoretical studies of top-fed debris bed coolability available so far have been focused on obtaining the Dryout Heat Flux (DHF) as a function of debris bed parameters (mean particle diameter and porosity). In this paper, uncertainty analysis is carried out to quantify the influence of different factors on DHF. Global sensitivity analysis is applied to rank the drag model parameters according to their effects on DHF and average pressure drop (epistemic uncertainty). The most influential model parameters are then optimized to achieve the best fit to experimental data available. Finally, aleatory uncertainties due to randomness of the debris bed format

Place, publisher, year, edition, pages
2011.
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-53492OAI: oai:DiVA.org:kth-53492DiVA: diva2:470158
Note
QC 20111228Available from: 2011-12-28 Created: 2011-12-28 Last updated: 2011-12-28Bibliographically approved

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Kudinov, Pavel

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CiteExportLink to record
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