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Kasahara, Seiji; Imai, Yoshiyuki; Suzuki, Koichi*; Iwatsuki, Jin; Terada, Atsuhiko; Yan, X.
Nuclear Engineering and Design, 329, p.213 - 222, 2018/04
Times Cited Count：21 Percentile：91.03(Nuclear Science & Technology)A conceptual design of a practical large scale plant of the thermochemical water splitting iodine-sulfur (IS) process flowsheet was carried out as a heat application of JAEA's commercial high temperature gas cooled reactor GTHTR300C plant design. Innovative techniques proposed by JAEA were applied for improvement of hydrogen production thermal efficiency; depressurized flash concentration H
SO
using waste heat from Bunsen reaction, prevention of HSO vaporization from a distillation column by introduction of HSO solution from a flash bottom, and I condensation heat recovery in an HI distillation column. Hydrogen of about 31,900 Nm
/h would be produced by 170 MW heat from the GTHTR300C. A thermal efficiency of 50.2% would be achievable with incorporation of the innovative techniques and high performance HI concentration and decomposition components and heat exchangers expected in future R&D.
test plantYan, X.; Sato, Hiroyuki; Sumita, Junya; Nomoto, Yasunobu*; Horii, Shoichi*; Imai, Yoshiyuki; Kasahara, Seiji; Suzuki, Koichi*; Iwatsuki, Jin; Terada, Atsuhiko; et al.
Nuclear Engineering and Design, 329, p.223 - 233, 2018/04
Times Cited Count：20 Percentile：90.27(Nuclear Science & Technology)The pre-licensing design of an HTGR cogeneration test plant to be coupled to JAEA's existing test reactor HTTR is presented. The plant is designed to demonstrate the system of JAEA commercial plant design GTHTR300C. With construction planned to be completed around 2025, the test plant is expected to be the first-of-a-kind nuclear system operating on two of the advanced energy conversion systems attractive for the HTGR closed cycle helium gas turbine for power generation and thermochemical iodine-sulfur water-splitting process for hydrogen production.
Kasahara, Seiji; Imai, Yoshiyuki; Suzuki, Koichi*; Iwatsuki, Jin; Terada, Atsuhiko; Yan, X.
Proceedings of 8th International Topical Meeting on High Temperature Reactor Technology (HTR 2016) (CD-ROM), p.491 - 500, 2016/11
A conceptual design of a practical large scale plant of the thermochemical water splitting iodine-sulfur (IS) process flowsheet was carried out as a heat application of Japan Atomic Energy Agency's commercial Gas Turbine High Temperature Reactor Cogeneration (GTHTR300C) plant design. Innovative techniques proposed by JAEA were applied for improvement of hydrogen production thermal efficiency; flash concentration of HSO using waste heat from Bunsen reaction, prevention of HSO vaporization from a distillation column by introduction of HSO solution, and I condensation heat recovery by direct contact heat exchange in the HI distillation column. A simulation of material and heat balance showed hydrogen of about 31,900 Nm/h was produced by 170 MW heat from the GTHTR300C. A process thermal efficiency of 50.2% was achievable with incorporation of the innovative techniques and several high performance components expected in future R&D.
test plant; System designYan, X.; Sato, Hiroyuki; Sumita, Junya; Nomoto, Yasunobu; Horii, Shoichi; Imai, Yoshiyuki; Kasahara, Seiji; Suzuki, Koichi*; Iwatsuki, Jin; Terada, Atsuhiko; et al.
Proceedings of 8th International Topical Meeting on High Temperature Reactor Technology (HTR 2016) (CD-ROM), p.827 - 836, 2016/11
Pre-licensing basic design for a cogenerating HTGR test plant system is presented. The plant to be coupled to existing 30 MWt 950
C test reactor HTTR is intended as a system technology demonstrator for GTHTR300C plant design. More specifically the test plant of HTTR-GT/H aims to (1)demonstrate the licensability of the GTHTR300C for electricity production by gas turbine and hydrogen cogeneration by thermochemical process and (2) confirm the operation control and safety of such cogeneration system. With construction and operation completion by 2025, the test plant is expected to be the first of a kind HTGR-powered cogeneration plant operating on the two advanced energy conversion systems of closed cycle helium gas turbine for power generation and thermochemical iodine-sulfur water-splitting process for hydrogen production.
emission reduction goal in 2050Kamiji, Yu; Suzuki, Koichi*; Yan, X.
JAEA-Technology 2016-010, 24 Pages, 2016/07
JAEA-Technology-2016-010.pdf:1.05MB
Japanese government has set the goal of reducing CO emission by 26% in 2030 below the 2013 level, in longer term, by 80% below the 1990 level. To achieve the goals, various measures should be taken. The GTHTR300, a commercial High Temperature Gas-cooled Reactor (HTGR) design being developed by JAEA offers spectrum of heat applications by using its high temperature heat up to 950C. The potential contribution of CO emission reduction by HTGR is estimated considering domestic and overseas deployment of the GTHTR300. The best estimate for domestic CO reduction is 2.07
10
ton- CO/yr and that from oversea is 2.2510 ton- CO/yr. The sum of these is about 47% of 9.1310 ton- CO/yr which is CO reduction target in 2050, for which deployment of 52 plants in Japan and 113 plants abroad, with each plant containing four 600 MWt reactor units, is required.
using ion beam irradiationYuki, Shunji*; Araki, Satoshi*; Suzuki, Takanori*; Osuga, Toshio*; Katayama, Koichi*; Hase, Yoshihiro; Yokota, Yuichiro
JAEA-Review 2007-060, JAEA Takasaki Annual Report 2006, P. 85, 2008/03
no abstracts in English
Suzuki, Junichi; Oku, Takayuki; Adachi, Tomohiro*; Shimizu, Hirohiko; Kiyanagi, Yoshiaki*; Kamiyama, Takashi*; Hiraga, Fujio*; Iwasa, Hirokatsu*; Sato, Koichi*; Furusaka, Michihiro*
Nuclear Instruments and Methods in Physics Research A, 529(1-3), p.120 - 124, 2004/08
Times Cited Count：11 Percentile：58.51(Instruments & Instrumentation)no abstracts in English
; Higuchi, Kenji; ; Harada, Hiro; ; *; *
High Performance computing 1995; Grand Challenges in Computer Simulation, 0, p.9 - 15, 1995/00
no abstracts in English
Masukawa, Fumihiro; ; Naito, Yoshitaka; *; *; *; *
JAERI-M 93-210, 40 Pages, 1993/11
no abstracts in English
*; *; *; *; *; Yokokawa, Mitsuo
JAERI-M 92-142, 117 Pages, 1992/09
no abstracts in English
*; *; Watanabe, Kenji*; *; *; *; Harada, Hiro; Yokokawa, Mitsuo
JAERI-M 92-105, 209 Pages, 1992/07
no abstracts in English
; Masukawa, Fumihiro; Komuro, Yuichi; Naito, Yoshitaka; *; *; *; *
Nihon Genshiryoku Gakkai-Shi, 34(6), p.533 - 543, 1992/06
Times Cited Count：1 Percentile：17.26(Nuclear Science & Technology)no abstracts in English
Watanabe, Kenji*; *; Yokokawa, Mitsuo; ;
Joho Shori Gakkai Kenkyu Hokoku, 91(61), p.17 - 24, 1991/07
no abstracts in English
Kaetsu, Isao; ; Asano, Masaharu; *; *; *; *; *; *; *; et al.
Jinko Zoki, 15(1), p.210 - 213, 1986/00
no abstracts in English
Kaetsu, Isao; ; Asano, Masaharu; *; *; *; *; *; *; *
Jinko Zoki, 15(1), p.214 - 217, 1986/00
no abstracts in English
Shinohara, Takenao; Suzuki, Junichi; Oku, Takayuki; Iwashita, Hidenori*; Kamiyama, Takashi*; Iwasa, Hirokatsu*; Hiraga, Fujio*; Kiyanagi, Yoshiaki*; Sato, Koichi*; Shimizu, Hirohiko*
no journal, ,
no abstracts in English
Shinohara, Takenao; Suzuki, Junichi; Oku, Takayuki; Iwashita, Hidenori*; Kamiyama, Takashi*; Iwasa, Hirokatsu*; Hiraga, Fujio*; Kiyanagi, Yoshiaki*; Sato, Koichi*; Shimizu, Hirohiko*
no journal, ,
no abstracts in English
He polarized neutron spin filters and its present status, 2Kira, Hiroshi; Sakaguchi, Yoshifumi; Oku, Takayuki; Suzuki, Junichi; Nakamura, Mitsutaka; Arai, Masatoshi; Endo, Yasuo; Kakurai, Kazuhisa; Arimoto, Yasushi*; Ino, Takashi*; et al.
no journal, ,
no abstracts in English
He gas neutron spin filtersKira, Hiroshi; Sakaguchi, Yoshifumi; Oku, Takayuki; Suzuki, Junichi; Nakamura, Mitsutaka; Arai, Masatoshi; Endo, Yasuo; Arimoto, Yasushi*; Ino, Takashi*; Shimizu, Hirohiko*; et al.
no journal, ,
no abstracts in English
