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Journal Articles

Nuclear design

Fujimoto, Nozomu; Nojiri, Naoki; Ando, Hiroei*; Yamashita, Kiyonobu*

Nuclear Engineering and Design, 233(1-3), p.23 - 36, 2004/10

 Times Cited Count:7 Percentile:41.7(Nuclear Science & Technology)

In the nuclear design of the HTTR, the reactivity balance is planned so that the design requirements are fully satisfied. Moreover, the reactivity coefficients are evaluated to confirm the safety characteristics of the reactor. The power distribution in the core was optimized by changing the uranium enrichment to maintain the fuel temperature at less than the limit (1600$$^{circ}$$C). Deviation from the optimized distribution due to the burnup of fissile materials was avoided by flattening time-dependent changes in local reactivities. Flattening was achieved by optimizing the specifications of the burnable poisons. The original nuclear design model had to be modified based on the first critical experiments. The Monte Carlo code MVP was also used to predict criticality of the initial core. The predicted excess reactivities are now in good agreement with the experimental results.

Journal Articles

Analysis of HTTR's core with Monte Carlo code MVP

Fujimoto, Nozomu; Nojiri, Naoki; Yamashita, Kiyonobu; Shimakawa, Satoshi; Ando, Hiroei; Mori, Takamasa

Nippon Genshiryoku Gakkai Monte Karuro Ho Ni Yoru Ryushi Shimyureshon No Genjo To Kadai, p.201 - 210, 2002/01

no abstracts in English

Journal Articles

Monte Carlo analysis of HTTR with the MVP statistical geometry model

Mori, Takamasa; Okumura, Keisuke; Nagaya, Yasunobu; Ando, Hiroei

Transactions of the American Nuclear Society, 83, p.283 - 284, 2000/00

no abstracts in English

JAEA Reports

Preliminary analyses for HTTR's start-up physics tests by Monte Carlo code MVP

Nojiri, Naoki; Nakano, Masaaki*; Ando, Hiroei; Fujimoto, Nozomu; Takeuchi, Mitsuo; Fujisaki, Shingo; Yamashita, Kiyonobu

JAERI-Tech 98-032, 59 Pages, 1998/08

JAERI-Tech-98-032.pdf:2.48MB

no abstracts in English

Journal Articles

Development of ceramic-coated lithium particles for tritium production tests in high temperature engineering test reactor

Yamashita, Kiyonobu; Sawa, Kazuhiro; Ando, Hiroei; *; *

Nippon Genshiryoku Gakkai-Shi, 40(1), p.65 - 69, 1998/00

 Times Cited Count:6 Percentile:47.04(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Benchmark problems of start-up core physics of High Temperature engineering Test Reactor (HTTR)

Yamashita, Kiyonobu; Nojiri, Naoki; Fujimoto, Nozomu; Nakano, Masaaki*; Ando, Hiroei; Nagao, Yoshiharu; Nagaya, Yasunobu; Akino, Fujiyoshi; Takeuchi, Mitsuo; Fujisaki, Shingo; et al.

Proc. of IAEA TCM on High Temperature Gas Cooled Reactor Applications and Future Prospects, p.185 - 197, 1998/00

no abstracts in English

Journal Articles

Evaluation of the high temperature engineering test reactor's first criticality with Monte Carlo code

Yamashita, Kiyonobu; Ando, Hiroei; Nojiri, Naoki; Fujimoto, Nozomu; Nakata, Tetsuo*; Watanabe, Takashi*; Yamane, Tsuyoshi; Nakano, Masaaki*

Proc. of SARATOGA 1997, 2, p.1557 - 1566, 1997/00

no abstracts in English

Journal Articles

Irradiation induced stress relaxation and high temperature doformation behavior of neutron irradiated Ti based shape memory alloys

Hoshiya, Taiji; Goto, Ichiro; Omi, Masao; Ando, Hiroei; *; *

Journal of Nuclear Materials, 212-215, p.818 - 822, 1994/00

 Times Cited Count:2 Percentile:62.1

no abstracts in English

Journal Articles

Effect of neutron irradiation on deformation behavior in TiPd-Cr high temperature shape memory alloys

Hoshiya, Taiji; Goto, Ichiro; Omi, Masao; Ando, Hiroei; *; *

Shape Memory Materials and Hydrides (Trans. of Materials Research Soc. Jpn., Vol. 18B), 0, p.1025 - 1028, 1994/00

no abstracts in English

JAEA Reports

Plate-out distribution of iodine in a high temperature gas cooling in-pile loop facility

*; Endo, Yasuichi; ; Itabashi, Yukio; ; Yokouchi, Iichiro; Ando, Hiroei

JAERI-M 92-212, 62 Pages, 1993/01

JAERI-M-92-212.pdf:2.09MB

no abstracts in English

Journal Articles

Experimental study on DNB heat flux correlations for JMTR safety analysis

; Kaminaga, Masanori; ; Ando, Hiroei; ; Sudo, Yukio;

ANL/RERTR/TM-18, CONF-9009108, 0, p.241 - 248, 1993/00

no abstracts in English

Journal Articles

Surface characterization of hot-pressed beryllium with X-ray photoelectron spectroscopy

; Kawamura, Hiroshi; *; *; *; Ando, Hiroei;

Journal of Nuclear Materials, 191-194, p.183 - 185, 1992/00

no abstracts in English

Journal Articles

Restoration properties of neutron irradiated Ti-Ni shape memory alloys

Hoshiya, Taiji; ; Omi, Masao; Goto, Ichiro; Ando, Hiroei

Nippon Kinzoku Gakkai-Shi, 56(5), p.502 - 508, 1992/00

no abstracts in English

Journal Articles

Effect of neutron irradiation on deformation behavior of a Ti-Ni shape memory alloy

Hoshiya, Taiji; *; Ando, Hiroei

Nippon Kinzoku Gakkai-Shi, 56(7), p.741 - 746, 1992/00

no abstracts in English

Journal Articles

Effect of hydrogen on transformation characteristics and deformation behavior in a TiNi shape memory alloy

Hoshiya, Taiji; *; Katsuta, Hiroji; Ando, Hiroei

Nippon Kinzoku Gakkai-Shi, 56(7), p.747 - 756, 1992/00

no abstracts in English

Journal Articles

JMTR modification to ensure reactor safety concerning with core conversion to low enriched uranium fuel

Sato, Takeshi; ; Nagaoka, Yoshiharu; ; Saito, Junichi; ; Ando, Hiroei; Saito, Minoru;

UTNL-R-0274, p.1-1 - 1-11, 1992/00

no abstracts in English

JAEA Reports

Measurement of thermal conductivity of uranium silicide-aluminum dispersion fuel

Saito, Junichi; ; ; Ando, Hiroei

JAERI-M 91-065, 42 Pages, 1991/04

JAERI-M-91-065.pdf:1.31MB

no abstracts in English

Journal Articles

Preliminary safety analysis for JMTR core conversion to LEU fuel

; ; Ando, Hiroei; Saito, Minoru; Oyamada, Rokuro

11th Int. Meeting on Reduced Enrichment for Research and Test Reactors, 18 Pages, 1991/00

no abstracts in English

Journal Articles

Safety criterion for burnout of the plate-type fuel in pressurized conditions

; Kaminaga, Masanori; ; Ando, Hiroei; Sudo, Yukio; Saito, Minoru;

Proc. of the Asian Symp. on Research Reactor, p.1 - 8, 1991/00

no abstracts in English

Journal Articles

Progress in safety evaluation for the JMTR core conversion to LEU fuel

; ; Saito, Junichi; Komukai, Bunsaku; Ando, Hiroei; ; ; ; Saito, Minoru;

Proc. on 12th Int. Meeting,Reduced Enrichment for Research and Test Reactors, p.269 - 280, 1991/00

no abstracts in English

25 (Records 1-20 displayed on this page)