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Journal Articles

Research and development on passive cooling system

Takada, Shoji

Nuclear Engineering and Design, 233(1-3), p.185 - 195, 2004/10

 Times Cited Count:6 Percentile:40.63(Nuclear Science & Technology)

Experiments are carried out to investigate the effects of the natural convection of superheated gas as well as of the stand pipes on the temperature distributions of the components and the heat removal performance in the water-cooling panel system for the MHTGR for decay heat removal, and to verify the design and evaluation methods. The numerical results of the code THANPACST2 are compared with the experimental data to verify the numerical methods and axi-symmetric model proposed, which can simulate the three-dimensional configuration of the stand pipes on the upper head of the pressure vessel by using porous body cells. The experiments revealed that temperatures increased with elevation on the upper head, because the stand pipes restrict radiation heat transfer to the upper cooling panel and reduce the heat transfer area on the upper head which was superheated by natural convection of helium gas in the pressure vessel. The numerical methods were able to closely duplicate the pattern of the rising temperature profile with elevation around the top of the upper head.

Journal Articles

Experimental and numerical studies on performance of passive decay heat removal by a water cooling panel from a high-temperature gas-cooled reactor

Takada, Shoji; Suzuki, Kunihiro; Inagaki, Yoshiyuki; Sudo, Yukio

Journal of Nuclear Science and Technology, 36(5), p.413 - 423, 1999/05

 Times Cited Count:2 Percentile:21.18(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Performance of passive heat removal by an air cooling panel from a high-temperature gas-cooled reactor

Takada, Shoji; Suzuki, Kunihiro; Inagaki, Yoshiyuki; Sudo, Yukio

Nihon Kikai Gakkai Rombunshu, B, 65(633), p.248 - 254, 1999/05

no abstracts in English

Journal Articles

Study on cooling performance of air-cooling panel system for HTGR

Takada, Shoji; Suzuki, Kunihiro; Inagaki, Yoshiyuki; Sudo, Yukio

Transactions of the American Nuclear Society, 79, p.160 - 161, 1998/00

no abstracts in English

Journal Articles

Buoyancy-driven exchange flow through double openings with having multi flow patterns

*; Okamoto, Koji*; *; Fumizawa, Motoo

Nihon Kikai Gakkai Rombunshu, B, 63(615), p.82 - 89, 1997/11

no abstracts in English

Journal Articles

Buoyancy-driven exchange flow through an opening with a partition

*; *; *; Okamoto, Koji*; Fumizawa, Motoo; Hishida, Makoto

Kashika Joho Gakkai-Shi, 15(SUPPL.1), p.245 - 248, 1995/07

no abstracts in English

Journal Articles

Experimental study on flow rate measurement of buoyancy-driven exchange flow

Fumizawa, Motoo

Nuclear Technology, 109, p.236 - 245, 1995/02

 Times Cited Count:4 Percentile:43.23(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Helium-air exchange flow through annular and round tubes

Fumizawa, Motoo; Hishida, Makoto

Nuclear Technology, 109, p.123 - 131, 1995/01

 Times Cited Count:1 Percentile:17.52(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Flow rate measurement of buoyancy-driven exchange flow by laser Doppler velocimeter

Fumizawa, Motoo; Hishida, Makoto

Laser Anemometry 1995 (FED-Vol. 229), 0, p.51 - 56, 1995/00

no abstracts in English

Journal Articles

Visualization of helium-air exchange flow

*; *; *; *; Fumizawa, Motoo

Kashika Joho Gakkai-Shi, 14(54), p.185 - 190, 1994/07

no abstracts in English

Journal Articles

Helium-air exchange flow during the standpipe rupture accident of HTGR

Fumizawa, Motoo; Hishida, Makoto

Dai-4-Kai Doryoku, Enerugi Gijutsu Shimpojiumu Koen Rombunshu, p.323 - 326, 1994/00

no abstracts in English

Journal Articles

Flow rate measurement of buoyancy-driven exchange flow by laser doppler velocimeter

Fumizawa, Motoo

Nihon Kikai Gakkai Rombunshu, B, 59(567), p.3686 - 3693, 1993/11

no abstracts in English

Journal Articles

Visualization and velocity measurements of the buoyancy-driven exchange flow between helium and air, 3rd report; Visualization of exchange flow in an inclined pipe

*; *; *; *; Fumizawa, Motoo

Kashika Joho Gakkai-Shi, 13(SUPPL.2), p.87 - 90, 1993/10

no abstracts in English

Journal Articles

Discharge of a laminar argon jet into stagnant air

Fumizawa, Motoo

Kerntechnik, 58(5), p.269 - 272, 1993/10

no abstracts in English

Journal Articles

Flow rate measurement and visualization of buoyancy-driven exchange flow by laser Doppler velocimeter

Fumizawa, Motoo

Kashika Joho Gakkai-Shi, 13(SUPPL.1), p.253 - 256, 1993/07

no abstracts in English

Journal Articles

Researches on air ingress accidents of the HTTR

Hishida, Makoto; Fumizawa, Motoo; Takeda, Tetsuaki; Ogawa, Masuro; Takenaka, Satsuki*

Nucl. Eng. Des., 144, p.317 - 325, 1993/00

 Times Cited Count:12 Percentile:74.44(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Experimental study of helium-air exchange flow through an annular tube

Fumizawa, Motoo; Hishida, Makoto

Proc. of the 2nd ASME/JSME Nuclear Engineering, p.85 - 92, 1993/00

no abstracts in English

Journal Articles

Helium-air exchange flow through multiple openings

T.I.Kang*; Okamoto, Koji*; *; Fumizawa, Motoo

Proc. of the 6th Int. Symp. on Transport Phenomena (ISTP-6) in Thermal Engineering,Vol. 1, p.325 - 330, 1993/00

no abstracts in English

Journal Articles

Numerical analysis of buoyancy-driven exchange flow with regard to an HTTR air ingress accident

Fujii, Sadao*; *; Igarashi, Minoru*; Fumizawa, Motoo; Kunugi, Tomoaki; Hishida, Makoto

Proc. of the 6th Int. Topical Meeting on Nuclear Reactor Thermal Hydraulics,Vol. 2, p.1498 - 1505, 1993/00

no abstracts in English

Journal Articles

Helium-air exchange flow through a partitioned vertical opening

K.Tae-il*; Okamoto, Koji*; *; Fumizawa, Motoo

Proc. of the 5th Int. Topical Meeting on Reactor Thermal Hydraulics, p.541 - 546, 1992/00

no abstracts in English

22 (Records 1-20 displayed on this page)