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Liu, W.; Podowski, M. Z.*
Nihon Kikai Gakkai Netsu Kogaku Konfuarensu 2015 Koen Rombunshu (CD-ROM), 2 Pages, 2015/10
This paper gives prediction to the transient heat transfer at Departure of Nucleate Boiling (DNB) point for subcooled flow boiling. The prediction is carried out by solving the heat conduction equations in cylindrical coordinates with convective boundary condition, which changes with the change of the heat transfer mode on the heated surface. DNB is assumed to happen at the complete dryout of liquid sublayer trapped between the heated wall and an elongated vapor clot, during the passing time of the vapor clot. Important parameters including initial thickness of the liquid sublayer, vapor clot length, vapor clot velocity and void fraction etc., are calculated from the Liu - Nariai model. The initial heater surface temperature is derived from the Jens-Lottes correlation. The transient changes of liquid sublayer thickness, surface temperature at DNB are reported. No obvious temperature jumping is observed at DNB. To predict temperate excursion at Critical Heat Flux (CHF), more simulations to the transient boiling and film boiling processes are needed.
Uchida, Shunsuke*; Sato, Tomonori; Morishima, Yusuke*; Hirose, Tatsuya*; Miyazawa, Takahiro*; Kakinuma, Nagao*; Sato, Yoshiyuki*; Usui, Naoshi*; Wada, Yoichi*
Proceedings of 12th International Conference on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactors (CD-ROM), p.19 - 29, 2005/00
Static and dynamic responses of stainless steel specimens exposed to H
O and O in high temperature water were evaluated by analyzing ECP and FDCI (frequency dependent complex impedance). The oxide films on the specimens were characterized by multilateral surface analyses, e.g., LRS, SIMS, XPS and direct electric resistance measurement. As a result of evaluation, it was confirmed that (1) corrosive condition of BWR normal water chemistry (NWC) was simulated by 100 ppb HO without co-existing O, while that of hydrogen water chemistry (HWC) was simulated by 10 ppb HO, (2) ECP under HWC was as high as that under NWC, while dissolution rate of oxide film under HWC was much lower than that under NWC, (3) combination effects of electric resistance and dissolution rate of oxide caused same level ECP for both NWC and HWC, and (4) distinct weight loss of the specimen exposed to 100 ppb HO was observed.
Yamawaki, Michio*; Suzuki, Atsushi*; Yokota, Toshihiko*; Luo, G.*; Yamaguchi, Kenji*; Hayashi, Kimio
Proceedings of 1st Information Exchange Meeting on Basic Studies on High-Temperature Engineering, p.357 - 364, 1999/09
no abstracts in English
Nishitani, Takeo; Iguchi, Tetsuo*; Ebisawa, Katsuyuki*; ; Kasai, Satoshi
JAERI-Tech 96-038, 29 Pages, 1996/09
no abstracts in English
Araki, Masanori;
Review of Scientific Instruments, 67(1), p.178 - 184, 1996/01
Times Cited Count：4 Percentile：43.18(Instruments & Instrumentation)no abstracts in English
-based oxides in nitric acid solutions at elevated temperaturesAkabori, Mitsuo; Shiratori, Tetsuo
Journal of Nuclear Science and Technology, 31(6), p.539 - 545, 1994/06
Times Cited Count：16 Percentile：78.15(Nuclear Science & Technology)no abstracts in English
Onizawa, Kunio; Fukaya, Kiyoshi; Nishiyama, Yutaka; Suzuki, Masahide; Kaihara, Shoichiro*; Nakamura, Terumi*
IWG-LMNPP-94/9, 0, 12 Pages, 1994/00
no abstracts in English
Tanzawa, Sadamitsu; ;
Journal of Nuclear Science and Technology, 30(4), p.281 - 290, 1993/04
Times Cited Count：0 Percentile：0.00(Nuclear Science & Technology)no abstracts in English
Koide, Yoshihiko; Ishida, Shinichi; Sakasai, Akira; Shirai, Hiroshi; Hirayama, Toshio; Kubo, Hirotaka; Sugie, Tatsuo;
Nuclear Fusion, 33(2), p.251 - 261, 1993/00
Times Cited Count：13 Percentile：45.06(Physics, Fluids & Plasmas)no abstracts in English
Tanzawa, Sadamitsu; Ishijima, Kiyomi
JAERI-M 91-183, 31 Pages, 1991/11
no abstracts in English
G.Xu*; Kumamaru, Hiroshige; Tasaka, Kanji
JAERI-M 89-178, 35 Pages, 1989/11
no abstracts in English
JAERI-M 82-015, 21 Pages, 1982/03
no abstracts in English
; ; ;
Journal of Nuclear Materials, 96(3), p.358 - 368, 1981/00
Times Cited Count：7 Percentile：66.70(Materials Science, Multidisciplinary)no abstracts in English
; ;
JAERI-M 8187, 21 Pages, 1979/03
no abstracts in English
; ; ; ;
JAERI-M 8087, 42 Pages, 1979/02
no abstracts in English
; ;
JAERI-M 8081, 26 Pages, 1979/02
no abstracts in English
; ; ;
Journal of Nuclear Science and Technology, 15(10), p.736 - 744, 1978/10
Times Cited Count：16no abstracts in English
