German Contribution to Item 2 of the Agenda “Status of ... - IAEA

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h~300 105 mm Lehrstuhl für Reaktorsicherheit und –technik Univ.-Prof. Dr. rer. nat. Hans-Josef Allelein Institut für Energie- und Klimaforschung Nukleare Entsorgung und Reaktorsicherheit (IEK-6) INDEX (small scale experiment) Laser IR camera TC Ø 95 • Flow channel made of fused glass • Quadratic cross section (66x66mm) Induction coil (water cooled) camera Inlet of cooling water • Induction coil designed for 200g graphite • max. temperature pebble 1200°C pyrometer graphite sample induktive heatet up to 1200°C glas pyrometer • max. heating rate pebble 500°C/min Outlet of cooling water • First set up with single sphere (D=60mm) a=67 • Later pebble bed, block elements flow chanel • TC, pyrometer, IR camera • Gas analytics (He, O 2 , CO 2 , CO) • Particle Imaging Velocimetry (2D / 3D) GAS (N2- 21°C) H.-J. Allelein TWG-GCR-23 March 5-7, 2013, Vienna 10
Lehrstuhl für Reaktorsicherheit und –technik Univ.-Prof. Dr. rer. nat. Hans-Josef Allelein Institut für Energie- und Klimaforschung Nukleare Entsorgung und Reaktorsicherheit (IEK-6) INDEX First series: • single pebble • inductive heated single sphere • 700, 900, 1000, 1100, 1200°C • nitrogen flow 22 l/min • 2D PIV (classic) • flow field above the pebble • sequence of 200 pictures • measurements done in cold and hot state H.-J. Allelein TWG-GCR-23 March 5-7, 2013, Vienna 11
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German Contribution to Item 2 of the Agenda “Status of ... - IAEA

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