Reactor Physics study of fast and thermal neutron coupled cores

• Project/Area Number: 22360398
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear engineering
• Research Institution: Waseda University
• Principal Investigator: OKA Yoshiaki 早稲田大学, 理工学術院, 教授 (40011225)
• Co-Investigator(Kenkyū-buntansha): ISHIWATARI Yuki 東京大学, 工学(系)研究科, 講師 (10334319)
• Co-Investigator(Renkei-kenkyūsha): YAMAJI Akifumi 独立行政法人日本原子力研究開発機構, 次世代原子力システム研究開発部門, 研究員 (00571704)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000); Fiscal Year 2012: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2011: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000); Fiscal Year 2010: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
• Keywords: 核設計 / 非均質炉 / 高速炉 / 水素化ジルコニウム / SRAC / 結合炉 / 増殖 / 軽水 / 炉物理 / 結合炉心 / 炉心設計

Research Abstract

Fast and thermal neutron coupled core is the fast reactor core with distributed regions generating thermal neutrons.
The nuclear caracteristics has been clarified by changing core layout. The method of cell- homogenized macroscopic cross section preparation has been developed by taking the surrounding fuel assemblies into considiation.
A new fuel assembly of tightly coupled fuel rods was devised. High breeding characteristics is achieved for the first time in the world with light water cooling. Compound system doubling time of the fast reactor with the new fuel assemblies is less than 40 years. Thermal- hydraulic design remains for the future study.

Research Products

• [Journal Article] Plutonium breeding of light water cooled fast reactors (2013)
  • Author(s): Yoshiaki Oka, T. Inoue, T. Yoshida
  • Journal Title: Journal of Nuclear Science and Technology Volume: Vol.50, Issue 1 Issue: 1 Pages: 15-20
  • DOI: 10.1080/00223131.2013.750053
  • Peer Reviewed
• [Journal Article] Core design for super fast reactor with all upward flow core cooling (2013)
  • Author(s): Qingjie Liu, Yoshiaki Oka
  • Journal Title: Annals of Nuclear Energy Volume: 57 Pages: 221-229
  • URL: http://dx.doi.org/10.1016/j.anucene.2013.01.058
  • Peer Reviewed
• [Journal Article] Ex-Vessel Molten Core Sodification Behavior by Moving Particle Semi-implicit Method (2012)
  • Author(s): Takumi Kawahara and Yoshiaki Oka
  • Journal Title: Nuclear Science and Technology Volume: 49-12 Issue: 12 Pages: 1156-1164
  • DOI: 10.1080/00223131.2012.740944
  • Peer Reviewed
• [Journal Article] Study on the LLFPs transmutation in a super-critical water-cooled fast reactor (2011)
  • Author(s): Y.Oka, et al
  • Journal Title: Nuclear Engineering and Design Volume: 241 Pages: 395-401
  • Peer Reviewed
• [Presentation] Progress of Super Fast Reactor and Super LWR R&D (2013)
  • Author(s): Yoshiaki Oka et al.
  • Organizer: ISSCWR6-13035
  • Place of Presentation: Shenzhen, China (key note presentation)
• [Presentation] Accuracy of Nuclear Analysis of Fast and Thermal Neutron Coupled Core (2013)
  • Author(s): Yuki Honda and Yoshiaki Oka
  • Organizer: ISSCWR6-13035
  • Place of Presentation: Shenzhen, China
• [Presentation] Progress of Super Fast Reactor and Super LWR R&D (2013)
  • Author(s): Yoshiaki Oka
  • Organizer: ISSCWR6
  • Place of Presentation: Shenzhen, China
  • Invited
• [Presentation] Accuracy of Nuclear Analysis of Fast and Thermal Neutron Coupled Core (2013)
  • Author(s): Yuki Honda and Yoshiaki Oka
  • Organizer: ISSCWR6
  • Place of Presentation: Shenzhen, China
• [Presentation] 高速熱中性子結合炉心の核解析精度(Accuracy of Nuclear Analysis of Fast and Thermal Neutron Coupled Core) (2012)
  • Author(s): Yuki Honda and Yoshiaki Oka
  • Organizer: 日本原子力学会秋大会
  • Place of Presentation: 広島
  • Year and Date: 2012-09-20
• [Presentation] 新燃料集合体による水冷却高速炉の増殖性(1) PWR 冷却水密度(Plutonium breeding of light water cooled fast reactors with new fuel assemblies(1) PWR coolant density) (2012)
  • Author(s): Yoshiaki Oka and Takashi Inoue
  • Organizer: 日本原子力学会秋大会
  • Place of Presentation: 広島
  • Year and Date: 2012-09-20
• [Presentation] 新燃料集合体による水冷却高速炉の増殖性(2) 低減速BWR・スーパー高速炉冷却水密度 (Plutonium breeding of light water cooled fast reactors with new fuel assemblies(2) Reduced moderation BWR and Super FR coolant density) (2012)
  • Author(s): Taishi Yoshida and Yoshiaki Oka
  • Organizer: 日本原子力学会秋大会
  • Place of Presentation: 広島
  • Year and Date: 2012-09-20
• [Presentation] Super LWR and Super FR R&D (2011)
  • Author(s): Yoshiaki Oka
  • Organizer: ICTP-IAEA Course on Science and Technology of Supercritical Water-Cooled Reactors
  • Place of Presentation: The Abdus Salam international center for Theoretical Physics (ICTP) Trieste, Italy(special lecture)
  • Year and Date: 2011-06-29
• [Presentation] Research and Development of Super Light Water Reactors and Super fast Reactors in Japan (2011)
  • Author(s): Y.Oka, et al
  • Organizer: ISSCWR-5
  • Place of Presentation: バンクーバー、カナダ
  • Year and Date: 2011-03-11
• [Presentation] (SC19)Plant dynamics and control (2011)
  • Author(s): Y. Oka
  • Organizer: ICTP-IAEA Course on Science and Technology of Supercritical Water-Cooled Recators, The Abdus Salam international center for Theoretical Physics (ICTP) Trieste
  • Place of Presentation: Italy
• [Presentation] Super fast reactor R&D projects in Japan (2011)
  • Author(s): Yoshiaki Oka
  • Organizer: 19th International Conference on Nuclear Engineering, ICONE19
  • Place of Presentation: Makuhari, Chiba, Japan
• [Book] Nuclear Reactor Kinetics and Plant Control (2013)
  • Author(s): Y. Oka and K. Suzuki
  • Total Pages: 305
  • Publisher: Springer
• [Book] Super Light Water Reactors and Super Fast Reactors (2010)
  • Author(s): Y.Oka, et al
  • Total Pages: 651
  • Publisher: Springer
• [Remarks] Waseda University, World's first conceptual nuclear reactor design of high plutonium preeding by light water cooling(Yoshiaki Oka, Professor, Cooperative major in Nuclear energy, Waseda University and his team) (1)共同PR wire(2013 年3 月12 日)
• [Remarks] 日経産業新聞(2012年12月27日7 面) (2)
• [Remarks] 日刊工業新聞(2012年12月27日14 面) (2)
• [Remarks] 電気新聞(2012年12月27日1面) (2)
• [Remarks] 世界初、軽水冷却による高増殖性能の達成について (3)早大プレスリリース2012年12月10 日
• [Remarks] (4)ホームページ等
  • URL: http://www.f.waseda.jp/okay/index.html
• [Remarks] 早稲田大学 先進理工学研究科 共同原子力専攻 岡芳明研究室
  • URL: http://www.f.waseda.jp/okay/index.html
• [Patent(Industrial Property Rights)] 燃料集合体、炉心および水冷却型原子炉 (2012)
  • Inventor(s): 岡芳明
  • Industrial Property Rights Holder: 早稲田大学
  • Filing Date: 2012-04-27
  • Overseas
• [Patent(Industrial Property Rights)] 燃料集合体 (2012)
  • Inventor(s): 岡芳明
  • Industrial Property Rights Holder: 早稲田大学
  • Filing Date: 2012-01-23
• [Patent(Industrial Property Rights)] 燃料集合体、炉心及び水冷却型原子炉 (2012)
  • Inventor(s): 岡 芳明
  • Industrial Property Rights Holder: 早稲田大学
  • Industrial Property Rights Type: 特許
  • Filing Date: 2012-11-08
  • Overseas
• [Patent(Industrial Property Rights)] 特許 (2012)
  • Inventor(s): 岡芳明
  • Industrial Property Rights Holder: 早稲田大学
  • Industrial Property Number: 2012-024503
  • Filing Date: 2012-01-23
• [Patent(Industrial Property Rights)] 燃料集合体 (2011)
  • Inventor(s): 岡芳明
  • Industrial Property Rights Holder: 早稲田大学
  • Filing Date: 2011-05-02
• [Patent(Industrial Property Rights)] 特許 (2011)
  • Inventor(s): 岡芳明
  • Industrial Property Rights Holder: 早稲田大学
  • Industrial Property Number: 2011-114129
  • Filing Date: 2011-05-02