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Takata, Takashi; Ohno, Shuji; Tajima, Yuji*
Mechanical Engineering Journal (Internet), 4(3), p.16-00577_1 - 16-00577_11, 2017/06
Evaluation of accidental sodium leak, combustion, and its thermal consequence is one of the important issues to be assessed in the field of sodium-cooled fast reactor (SFR). The present paper deals with the sodium pool fire and subsequent heat transfer behavior in air atmosphere two-cell geometry both experimentally and analytically because such two-cell configuration is considered as a typical one to possess important characteristic of multi-compartment system seen in an actual plant. As a result of the numerical analysis using a lumped-parameter based zonal model safety analysis code SPHINCS, the applicability of the ventilation model implemented in SPHINCS has been demonstrated. It is also investigated that the buoyancy- driven ventilation is dominant in the experiment.
Ohno, Shuji; Takata, Takashi; Tajima, Yuji*
Proceedings of 24th International Conference on Nuclear Engineering (ICONE-24) (DVD-ROM), 7 Pages, 2016/06
From various kinds of sodium fire situations postulated in SFR plants, the present paper treats the sodium pool fire and subsequent heat transfer behavior in an important air atmosphere two-cell geometry as one of the important cell configuration conditions. The detailed analysis and investigation of sodium fire and thermal-hydraulics in horizontally arranged two cells with an opening between them are made both from experimental measurement and from numerical simulation with a multi-cell sodium fire analysis code SPHINCS.
Ohno, Shuji; Takata, Takashi; Tajima, Yuji*
no journal, ,
Development and validation of sodium fire evaluation system are ongoing to utilize the system for safety enhancement of sodium-cooled fast reactor. This report describes the result of validation study on sodium fire analysis code SPHINCS with a sodium pool fire experiment performed in 2-cell geometry.
