On the Evaluation of the Pressure Losses in a Lead-Bismuth-Eutectics Cooled Fuel Assembly with TRACE and SUSA
NURETH-14 - 2011 September 25-30

Presented at:
2011 September 25-30
Toronto, Canada
Session Title:
B13-4 Development, Assessment and Applications of TRACE

Wadim Jaeger (Karlsruhe Institute of Technology)
Victor Sánchez Espinoza (Karlsruhe Institute for Technology)


The prediction of the pressure drop in a pool-type reactor operated with lead-bismuth-eutectics is

of crucial importance. A pressure drop of e.g. 1 bar is equivalent to a lead-bismuth-eutectics column

of about 1 m, which has a big influence on the financial aspects of the design proposal. The

paper presents results on the hydraulic evaluation of a fuel assembly with the emphasis on uncertainties

and variations of relevant parameters like the mass flow rate, form, and friction loss coefficients.

With the subsequent uncertainty and sensitivity study, in connection with thermal hydraulic

investigations, the influence of these uncertain parameters was evaluated.

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