301. Post-test simulations for the NACIE-UP benchmark by STH codes
- Author
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T. Hollands, Fabio Giannetti, Nicola Forgione, I. Di Piazza, A. Papukchiev, Massimiliano Polidori, Antonio Cervone, D. Martelli, P. Lorusso, G. Barone, Forgione, N., Martelli, D., Barone, G., Giannetti, F., Lorusso, P., Hollands, T., Papukchiev, A., Polidori, M., Cervone, A., and Di Piazza, I.
- Subjects
Nuclear and High Energy Physics ,heavy liquid metal ,Computer science ,020209 energy ,Nuclear engineering ,Experimental data ,02 engineering and technology ,Benchmark ,HLM reactors ,01 natural sciences ,010305 fluids & plasmas ,uncertainty analysis ,NACIE-UP ,experiment ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,General Materials Science ,Safety, Risk, Reliability and Quality ,Waste Management and Disposal ,NACIE-UP facility ,Mechanical Engineering ,STH codes ,Test (assessment) ,Nuclear Energy and Engineering ,Research centre ,Benchmark (computing) ,Experimental data, NACIE-UP facility, STH codes, Benchmark, HLM reactors - Abstract
This paper illustrates the results obtained in the last phase of the NACIE-UP benchmark activity foreseen inside the EU SESAME Project. The purpose of this research activity, performed by system thermal–hydraulic (STH) codes, is finalized to the improvement, development and validation of existing STH codes for Heavy Liquid Metal (HLM) systems. All the participants improved their modelling of the NACIE-UP facility, respect to the initial blind simulation phase, adopting the actual experimental boundary conditions and reducing as much as possible sources of uncertainty in their numerical model. Four different STH codes were employed by the participants to the benchmark to model the NACIE-UP facility, namely: CATHARE for ENEA, ATHLET for GRS, RELAP5-3D© for the “Sapienza” University of Rome and RELAP5/Mod3.3(modified) for the University of Pisa. Three reference tests foreseen in the NACIE-UP benchmark and carried out at ENEA Brasimone Research Centre were analysed from four participants. The data from the post-test analyses, performed independently by the participant using different STH codes, were compared together and with the available experimental results and critically discussed.
- Published
- 2019