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Shimizu, Akira; Ohashi, Hirofumi; Kato, Michio; Hayashi, Koji; Aita, Hideki; Nishihara, Tetsuo; Inaba, Yoshitomo; Takada, Shoji; Morisaki, Norihiro; Sakaki, Akihiro*; et al.
JAERI-Tech 2005-031, 174 Pages, 2005/06
Connection of hydrogen production system by steam reforming of methane to the High Temperature Engineering Test Reactor (HTTR) of the Japan Atomic Energy Research Institute (JAERI) has been surveyed until now. Mock-up test facility of this steam reforming system with full-scale reaction tube was constructed in FY 2001, and a lot of operational test data on heat exchanges were obtained in these tests.In this report specifications, structures and heat transfer formulae of steam reformer, steam superheater, steam generator, condenser, helium gas cooler, feed gas heater and feed gas superheater were described. Evaluation codes were newly made to evaluate heat transfer characteristics from measured test data. Overall heat-transfer coefficient obtained from the experimental data were compared and evaluated with the prospective value calculated with heat transfer formulae. As a result, heat transfer performance and thermal efficiency of these heat exchangers were confirmed to be appropriate.
Horiguchi, Hironori; Oyama, Koji; Ishikuro, Yasuhiro; Hirane, Nobuhiko; Ito, Kazuhiro; Kameyama, Iwao
JAERI-Tech 2005-001, 38 Pages, 2005/02
After JRR-4 heat exchanger was renewed in made of stainless steel from carbon steel, it was examined how to manage the heat exchanger. The main subject is the cleaning technology of the heat exchanger. The recovery of old heat exchanger cooling performance has been by only chemical cleaning. Now we use chemical and dry cleaning as a new technique. It helps prevent of corrosions of secondary pipes and reduce of management costs. This report describes the performance management and cleaning technology of the JRR-4 heat exchanger and the management of the JRR-4 coolant.
Aso, Tomokazu; Sato, Hiroshi; Kaminaga, Masanori; Hino, Ryutaro; Monde, Masanori*
Proceedings of ICANS-XVI, Volume 2, p.935 - 944, 2003/07
no abstracts in English
Masaki, Kei; Taniguchi, Masaki; Miyo, Yasuhiko; Sakurai, Shinji; Sato, Kazuyoshi; Ezato, Koichiro; Tamai, Hiroshi; Sakasai, Akira; Matsukawa, Makoto; Ishida, Shinichi; et al.
Fusion Engineering and Design, 61-62, p.171 - 176, 2002/11
Times Cited Count:19 Percentile:74.68(Nuclear Science & Technology)A flat carbon fiber composite tile mock-up with screw tubes, which have helical fins like a nut, was fabricated aiming at further improvement of the heat removal performance of the cost-effectively manufactured divertor target for JT-60SC (modified JT-60 as a superconducting coil tokamak). The heat removal performance of the mock-up was successfully demonstrated on the JAERI Electron Beam Irradiation Stand. The estimated heat transfer coefficient of the screw tube at the non-boiling region was roughly 3 times higher than that of the smooth tube. This corresponds to 1.5 times that of the swirl tube. A heat cycle test of 10 MW/m2 showed that the mock-up with the screw tubes could withstand for 1400 cycles. These results indicate that the divertor target plate with the flat carbon fiber composite tile and the screw tube can be a promising candidate for the JT-60SC divertor target.
Kaminaga, Fumito*
JAERI-Tech 2002-012, 68 Pages, 2002/03
no abstracts in English
Iguchi, Tadashi
JAERI-Research 2000-050, 107 Pages, 2000/09
no abstracts in English
Inagaki, Yoshiyuki
JAERI-Research 97-069, 31 Pages, 1997/10
no abstracts in English
; ; Aso, Tomokazu; Niimi, Motoji
JAERI-M 92-149, 78 Pages, 1992/10
no abstracts in English
Kato, Takashi; *; Hiyama, Tadao; Kawano, Katsumi; *; *; *; ; Tsuji, Hiroshi; *; et al.
Cryogenics, 32(92 SUPPL), p.260 - 263, 1992/00
no abstracts in English
; ; Hoshiya, Taiji
Journal of Nuclear Science and Technology, 28(10), p.961 - 964, 1991/10
no abstracts in English
; *; ; Nakamura, Jinichi; Uchida, Masaaki
JAERI-M 91-003, 38 Pages, 1991/02
no abstracts in English
Kumamaru, Hiroshige; *; Shimooke, Takanori; *; Kukita, Yutaka
Thermal Hydraulics of Advanced Heat Exchangers, p.31 - 37, 1991/00
no abstracts in English
G.Xu*; Kumamaru, Hiroshige; Tasaka, Kanji
JAERI-M 89-178, 35 Pages, 1989/11
no abstracts in English
; ; ; ; ;
Nucl.Eng.Des., 102, p.1 - 9, 1987/00
Times Cited Count:9 Percentile:66.63(Nuclear Science & Technology)no abstracts in English
; ; ; ; ;
Nucl.Eng.Des., 102, p.11 - 20, 1987/00
Times Cited Count:5 Percentile:50.7(Nuclear Science & Technology)no abstracts in English
Sudo, Yukio; Osakabe, Masahiro
Journal of Nuclear Science and Technology, 20(4), p.322 - 332, 1983/00
Times Cited Count:13 Percentile:78.7(Nuclear Science & Technology)no abstracts in English
; *; ; ; ;
JAERI-M 9910, 37 Pages, 1982/01
no abstracts in English