German Contribution to Item 2 of the Agenda “Status of ... - IAEA
German Contribution to Item 2 of the Agenda “Status of ... - IAEA
German Contribution to Item 2 of the Agenda “Status of ... - IAEA
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Lehrstuhl für Reak<strong>to</strong>rsicherheit und –technik<br />
Univ.-Pr<strong>of</strong>. Dr. rer. nat. Hans-Josef Allelein<br />
Institut für Energie- und Klimaforschung<br />
Nukleare Entsorgung und Reak<strong>to</strong>rsicherheit (IEK-6)<br />
New Aspects <strong>of</strong> SHUFLE<br />
• Modelling <strong>of</strong> discharge tube<br />
• Differing flow velocities in azimuthal direction<br />
• Space dependent filling fac<strong>to</strong>r / densification <strong>of</strong> pebble bed<br />
• Tracking <strong>of</strong> single batches (multi fuel pass fuel strategy)<br />
• Simulation <strong>of</strong> conical pebble heap(s)<br />
• More precise modelling <strong>of</strong> stagnant zones<br />
1030°C<br />
900°C<br />
935°C<br />
Fig.: Fuel temperature distribution [2]<br />
Fig.: Stagnant zones [1]<br />
[1] Yang, X.: Experimental Investigation on Feasibility <strong>of</strong> Two-Region-Designed Pebble-Bed High-Temperature Gas-Cooled Reac<strong>to</strong>r, INET, 2008<br />
[2] Verfondern, K.: Numerische Untersuchung der 3-dimensionalen stationären Temperatur- und Strömungsverteilung im Core eines Kugelhaufen-Hochtemperaturreak<strong>to</strong>rs, 1984<br />
H.-J. Allelein<br />
TWG-GCR-23<br />
March 5-7, 2013, Vienna<br />
37
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