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TRACE/PARCS VALIDATION FOR BWR STABILITY BASED ONOECD/NEA OSKARSHAMN-2 BENCHMARK
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Power Safety.
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Power Safety.ORCID iD: 0000-0003-0811-2325
2011 (English)Conference paper, Published paper (Refereed)
Abstract [en]

On February 25, 1999, the Oskarshamn-2 NPP experienced a stability event, which culminated in diverging power oscillations with decay ratio greater than 1.3.  The event was successfully modeled by TRACE/PARCS coupled code system and the details of the modeling and solution are described in the paper.  The obtained results show excellent agreement with the plant data, capturing the entire behavior of the transient including onset of instability, growth of oscillation (decay ratio) and the oscillation frequency.  The event allows coupled code validation for BWR with a real, challenging stability event, which challenges accuracy of neutron kinetics (NK), thermal-hydraulics (TH) and TH/NK coupling.  The success of this work has demonstrated the ability of 3-D coupled code systems to capture the complex behavior of BWR stability events.  The problem is released as an international OECD/NEA benchmark, and it is the first benchmark based on measured plant data for a stability event with a DR greater than one.  Interested participants are invited to contact authors for more information

Place, publisher, year, edition, pages
2011.
Keyword [en]
BWR, Stability, Instability, TRACE, Parcs, Oskarshamn
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-92645OAI: oai:DiVA.org:kth-92645DiVA: diva2:514170
Conference
The 14th International Topical Meeting on Nuclear Reactor Thermalhydraulics, NURETH-14
Note
QC 20120627Available from: 2012-04-05 Created: 2012-04-05 Last updated: 2012-06-27Bibliographically approved

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