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Oct 13 – 18, 2014
Hotel Park Inn Pribaltiyskaya
Europe/Moscow timezone

Experimental Results and Validation of Thermo-Mechanical Models Used for the PREMUX Test Campaign, as Part of the Roadmap towards an Out-of-Pile Testing of a Full Scale HCPB Breeder Unit Mock-up

Oct 17, 2014, 2:00 PM
4h 45m
Green 8-9 (Hotel Park Inn Pribaltiyskaya)

Green 8-9

Hotel Park Inn Pribaltiyskaya

Saint Petersburg, Russian Federation
Poster Poster 8


Mr Francisco Hernandez Gonzalez (Karlsruhe Institute of Technology)


PREMUX is a key experiment in the roadmap for a full-scale test of a Helium Cooled Pebble Bed Breeder Unit (HCPB BU) mock-up at the Karlsruhe Institute of Technology in Germany. This experiment reproduces a slice of the BU corresponding to the most thermally loaded region of the Li4SiO4 pebble bed in the BU. The experiment has 3 main goals: (1) to serve as a test rig to validate the feasibility of a new heater concept designed for a future BU out-of-pile testing, (2) to be used as benchmark experiment to validate the different finite element codes used for the thermo-mechanical performance assessment of the BU and (3) to evaluate the thermal conductivity of the Li4SiO4 pebble bed. Additional tests have been performed to evaluate the influence of the purge gas pressure in the temperature of the pebble bed and as a preliminary assessment of the robustness of the BU against variations of the coolant mass flow. The paper aims at reporting the results from the experimental campaign in PREMUX and presents the thermal and thermo-mechanical finite element models implemented in ANSYS that are used for the assessment of the thermo-mechanical performance of the HCPB BU. A benchmarking exercise using the experimental results of PREMUX for the validation of these models is reported and discussed.
Paper Number FIP/P8-2
Country or International Organisation Germany

Primary author

Mr Francisco Hernandez Gonzalez (Karlsruhe Institute of Technology)


Dr Marc Kamlah (Karlsruhe Institute of Technology) Mr Matthias Kolb (Karlsruhe Institute of Technology) Dr Yixiang Gan (School of Civil Engineering, The University of Sydney)

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