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Characterization of LBE Non-isothermal Natural Circulation by Experiments with HELIOS Test Loop and Numerical Analyses

Jun 28, 2017, 5:50 PM
1h 10m
Yekaterinburg

Yekaterinburg

POSTER Track 6. Test Reactors, Experiments and Modeling and Simulations Poster Session 2

Speaker

Mr Yonghoon Shin (Seoul National University)

Description

We present results of experiments with lead-bismuth eutectic (LBE) non-isothermal natural circulation in a full-height scale test loop, HELIOS, and numerical modeling results performed by a system thermal-hydraulics code. The experimental studies were conducted under steady state as a function of core power conditions from 9.8kW to 33.6kW. Local surface heaters on the main loop were activated and finely tuned by trial-and-error approach to make adiabatic wall boundary conditions. Activities on numerical modeling were carried out by a thermal-hydraulic system code MARS-LBE using the well-defined experimental data. It is found that the predictions were mostly in good agreement with the experimental data in terms of mass flow rate within 7% and temperature difference within 7%, respectively.

Country/Int. Organization

Republic of Korea, Seoul National University

Primary author

Mr Yonghoon Shin (Seoul National University)

Co-authors

Dr H Ju (Department of Energy Systems Engineering, Seoul National University) Prof. IL SOON HWANG (Seoul National University) Dr J Cho (Korea Atomic Energy Research Institute) Dr J Lee (Department of Energy Systems Engineering, Seoul National University) Dr S Sohn (Department of Energy Systems Engineering, Seoul National University)

Presentation materials