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Journal Articles

Study on cooling process in a reactor vessel of sodium-cooled fast reactor under severe accident; Velocity measurement experiments simulating operation of decay heat removal systems

Tsuji, Mitsuyo; Aizawa, Kosuke; Kobayashi, Jun; Kurihara, Akikazu; Miyake, Yasuhiro*

Proceedings of 2020 International Conference on Nuclear Engineering (ICONE 2020) (Internet), 5 Pages, 2020/08

The water experiments using a 1/10 scale experimental apparatus simulating the reactor vessel of SFR were conducted to investigate the natural circulation phenomena in a reactor vessel. In this paper, the natural circulation flow field in the reactor vessel was measured by the Particle Image Velocimetry (PIV) method. The PIV measurement was carried out under the operation of the dipped-type direct heat exchanger (DHX) installed in the upper plenum when 20% of the core fuel fell to the lower plenum and accumulated on the core catcher. From the results of PIV measurement, it was quantitatively confirmed that the upward flow occurred at the center region of the lower and upper plenums. In addition, the downward flows were confirmed near the reactor vessel wall in the upper plenum and through outermost layer of the simulated core in the lower plenum. Moreover, the relationship between the temperature field and the velocity field was investigated in order to understand the natural circulation phenomenon in the reactor vessel. From the above results, it was confirmed that the natural circulation cooling path was established under the dipped-type DHX operation.

Journal Articles

Development of cold moderator vessel for the spallation neutron source; Flow field measurements and thermal hydraulic analyses in cold moderator vessel

Aso, Tomokazu; Kaminaga, Masanori; Terada, Atsuhiko*; Hino, Ryutaro

Nihon Genshiryoku Gakkai-Shi, 43(11), p.1149 - 1158, 2001/11

 Times Cited Count:0 Percentile:0.01(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Thermal-hydraulic experiments and analyses on cold moderator

Aso, Tomokazu; Kaminaga, Masanori; Terada, Atsuhiko*; Hino, Ryutaro

JAERI-Conf 2001-002, p.893 - 903, 2001/03

no abstracts in English

JAEA Reports

Study of flow characteristics in a cold moderator, 3; Flow Pattern measurement and analysis with flat model

Aso, Tomokazu; Kaminaga, Masanori; Terada, Atsuhiko*; Hino, Ryutaro

JAERI-Tech 2000-018, p.49 - 0, 2000/03

JAERI-Tech-2000-018.pdf:3.24MB

no abstracts in English

JAEA Reports

Structural study of the cold moderator

Aso, Tomokazu; Kaminaga, Masanori; Terada, Atsuhiko*; Ishikura, Shuichi*; Hino, Ryutaro

JAERI-Tech 2000-011, p.23 - 0, 2000/02

JAERI-Tech-2000-011.pdf:1.79MB

no abstracts in English

JAEA Reports

Study on flow characteristics in cold source moderator, 2; Flow pattern measurement and analysis, thermal-hydraulic analysis in cold source moderator vessel

Aso, Tomokazu; Kaminaga, Masanori; Terada, Atsuhiko; Hino, Ryutaro

JAERI-Tech 99-049, 45 Pages, 1999/06

JAERI-Tech-99-049.pdf:2.62MB

no abstracts in English

Journal Articles

Development of cold source moderator structure

Aso, Tomokazu; Ishikura, Shuichi*; Terada, Atsuhiko*; Teshigawara, Makoto; Watanabe, Noboru; Hino, Ryutaro

Proceedings of 7th International Conference on Nuclear Engineering (ICONE-7) (CD-ROM), 10 Pages, 1999/04

no abstracts in English

JAEA Reports

Flow study on the ESS target water model using UVP method

Haga, Katsuhiro; *; Bauer, G.*; Guttek, B.*

JAERI-Tech 99-018, 41 Pages, 1999/03

JAERI-Tech-99-018.pdf:1.52MB

no abstracts in English

JAEA Reports

Study on flow characteristics in cold source moderator, 1; Flow pattern measurement and hydraulic analysis

Aso, Tomokazu; Kaminaga, Masanori; Terada, Atsuhiko; Hino, Ryutaro

JAERI-Tech 99-014, 113 Pages, 1999/03

JAERI-Tech-99-014.pdf:6.26MB

no abstracts in English

Journal Articles

Hydraulic experiments and analyses for development of the cold moderator

Aso, Tomokazu; Kaminaga, Masanori; Terada, Atsuhiko*; Hino, Ryutaro

Kashika Joho Gakkai-Shi, 19(Suppl.2), p.127 - 130, 1999/00

no abstracts in English

JAEA Reports

Study on thermal-hydraulics during a PWR reflood phase

Iguchi, Tadashi

JAERI-Research 98-054, 216 Pages, 1998/10

JAERI-Research-98-054.pdf:7.94MB

no abstracts in English

Journal Articles

Preliminary design of mercury target; Return flow type

Hino, Ryutaro; Kaminaga, Masanori; Ishikura, Shuichi*; *; *; *; *; *

Proc. of 14th Meeting of the Int. Collaboration on Advanced Neutron Sources (ICANS-14), 1, p.278 - 287, 1998/00

no abstracts in English

Journal Articles

Structural and hydraulic study on cold source moderator

Aso, Tomokazu; Ishikura, Shuichi*; Terada, Atsuhiko; Kai, Tetsuya; Teshigawara, Makoto*; Kaminaga, Masanori; Hino, Ryutaro; Watanabe, Noboru*

Proc. of 14th Meeting of the Int. Collaboration on Advanced Neutron Sources (ICANS-14), 2, p.804 - 822, 1998/00

no abstracts in English

JAEA Reports

Air ingress behavior during a primary-pipe repture accident of HTGR

Takeda, Tetsuaki

JAERI 1338, 180 Pages, 1997/11

JAERI-1338.pdf:7.72MB

no abstracts in English

Journal Articles

Experiments of two-phase flow dynamics of marine reactor behavior under heaving motion

Ishida, Toshihisa; *; *

Journal of Nuclear Science and Technology, 34(8), p.771 - 782, 1997/08

 Times Cited Count:17 Percentile:77.46(Nuclear Science & Technology)

no abstracts in English

16 (Records 1-16 displayed on this page)
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