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JAEA Reports

Re-examinations of MA fuel composition for accelerator-driven system and its heat removal

Sugawara, Takanori; Moriguchi, Daisuke*; Ban, Yasutoshi; Tsubata, Yasuhiro; Takano, Masahide; Nishihara, Kenji

JAEA-Research 2021-008, 63 Pages, 2021/10

JAEA-Research-2021-008.pdf:4.43MB

This study aims to perform the neutronics calculations for accelerator-driven system (ADS) with a new fuel composition based on the SELECT process developed by Japan Atomic Energy Agency because the previous studies had used the ideal MA (minor actinide) fuel composition without uranium and rare earth elements. Through the neutronics calculations, it is shown that two calculation cases, with/without neptunium, satisfy the design criteria. Although the new fuel composition includes uranium and rare earth elements, the ADS core with the new fuel composition is feasible and consistent with the partitioning and transmutation (P&T) cycle. Based on the new fuel composition, the heat removal during fuel powder storage and fuel assembly assembling is evaluated. For the fuel powder storage, it is found that a cylindrical tube container with a length of 500 [mm] and a diameter of 11 - 21 [mm] should be stored under water. For the fuel assembly assembling, CFD analysis indicates that the cladding tube temperature would satisfy the criterion if the inlet velocity of air is larger than 0.5 [m/s]. Through these studies, the new fuel composition which is consistent with the P&T cycle is obtained and the heat removal with the latest conditions is investigated. It is also shown that the new fuel composition can be practically handled with respect to heat generation, which is one of the most difficult points in handling MA fuel.

Journal Articles

Impact of impurity in transmutation cycle on neutronics design of revised accelerator-driven system

Sugawara, Takanori; Katano, Ryota; Tsujimoto, Kazufumi

Annals of Nuclear Energy, 111, p.449 - 459, 2018/01

 Times Cited Count:13 Percentile:79.14(Nuclear Science & Technology)

This study aims to review the ADS design based on the outcome for the last dozen years and to investigate the impact of impurities in the transmutation cycle on the ADS neutronics design. The impact of impurities in the transmutation cycle is investigated for the reviewed reference design. For the uranium from the partitioning, the accompaniment of 20 wt.% U against the Pu weight is acceptable although the MA transmutation amount will be decreased slightly. For the rare earth (RE) from the partitioning, the accompaniment of 5 wt.% RE against the MA weight is allowable. In the reprocessing, the decontamination factor, DF=10 for RE is enough from the viewpoint of the neutronics design. The impact of the fuel composition accuracy is also investigated. The uncertainty of the ZrN ratio against the MA fuel should be less than 0.2% to minimize a surplus proton beam current due to the uncertainty.

Journal Articles

Model verification and validation procedure for a neutronics design methodology of next generation fast reactors

Ohgama, Kazuya; Ikeda, Kazumi*; Ishikawa, Makoto; Kan, Taro*; Maruyama, Shuhei; Yokoyama, Kenji; Sugino, Kazuteru; Nagaya, Yasunobu; Oki, Shigeo

Proceedings of 2017 International Congress on Advances in Nuclear Power Plants (ICAPP 2017) (CD-ROM), 10 Pages, 2017/04

JAEA Reports

SRAC95; General purpose neutronics code system

Okumura, Keisuke; *;

JAERI-Data/Code 96-015, 445 Pages, 1996/03

JAERI-Data-Code-96-015.pdf:12.94MB

no abstracts in English

Journal Articles

Nuclear data usage for research reactors

Nakano, Yoshihiro; Soyama, Kazuhiko; *

JAERI-Conf 96-008, 0, p.86 - 91, 1996/03

no abstracts in English

Journal Articles

Temperature effect on critical mass and kinetic parameter $$beta$$$$_{eff}$$/$$wedge$$ of VHTRC-4 core

Yamane, Tsuyoshi; Akino, Fujiyoshi;

PHYSOR 96: Int. Conf. on the Physics of Reactors, 2, p.E290 - E299, 1996/00

no abstracts in English

JAEA Reports

Shielding analysis of the ITER/EDA NBI duct

S.Zimin*; *; Takatsu, Hideyuki; Sato, Satoshi; Tsunematsu, Toshihide; Inoue, Takashi; Ohara, Yoshihiro

JAERI-Tech 94-015, 37 Pages, 1994/08

JAERI-Tech-94-015.pdf:0.92MB

no abstracts in English

JAEA Reports

Two-dimensional over-all neutronics analysis of the ITER device

S.Zimin*; Takatsu, Hideyuki; Mori, Seiji*; *; Seki, Yasushi; Sato, Satoshi; Tada, Eisuke

JAERI-M 93-141, 75 Pages, 1993/07

JAERI-M-93-141.pdf:2.22MB

no abstracts in English

Journal Articles

Whole core calculations of power reactors by use of Monte Carlo method

Nakakawa, Masayuki; Mori, Takamasa

Journal of Nuclear Science and Technology, 30(7), p.692 - 701, 1993/07

 Times Cited Count:33 Percentile:92.41(Nuclear Science & Technology)

no abstracts in English

JAEA Reports

Revised SRAC code system

; ; *; *

JAERI 1302, 281 Pages, 1986/09

JAERI-1302.pdf:8.78MB

no abstracts in English

JAEA Reports

PROF-DD; A code system for generation of multi-group double-differential form cross section library

; Nakagawa, Masayuki;

JAERI-M 86-124, 57 Pages, 1986/08

JAERI-M-86-124.pdf:1.36MB

no abstracts in English

JAEA Reports

JAEA Reports

U.S./JAERI Fusion Neutronics Calculational Benchmarks for Nuclear Data and Codes Intercomparison

Nakagawa, Masayuki; ; *; M.Z.Youssef*; J.Jung*; M.E.Sawan*

JAERI-M 85-201, 281 Pages, 1985/12

JAERI-M-85-201.pdf:7.19MB

no abstracts in English

JAEA Reports

A Method for Measuring Tritium Production Rate by Lithium-Glass Scientillators

; ; ;

JAERI-M 85-086, 40 Pages, 1985/07

JAERI-M-85-086.pdf:1.12MB

no abstracts in English

JAEA Reports

JAEA Reports

JAEA Reports

A Code System for Fast Reactor Neutronics Analysis

Nakagawa, Masayuki; *; *

JAERI-M 83-066, 74 Pages, 1983/04

JAERI-M-83-066.pdf:1.76MB

no abstracts in English

Oral presentation

Model V&V and UQ procedure for the neutronics design methodology for the next generation fast reactor, 2; Verification

Ikeda, Kazumi*; Kan, Taro*; Maruyama, Shuhei; Ohgama, Kazuya

no journal, , 

no abstracts in English

Oral presentation

Impact of impurity in transmutation cycle on neutronics design of accelerator-driven system

Sugawara, Takanori; Katano, Ryota; Tsujimoto, Kazufumi

no journal, , 

This study aims to investigate the impact of impurities in the transmutation cycle on the ADS neutronics design. For the uranium from the partitioning, the accompaniment of 20 wt.% U against the Pu weight is acceptable although the MA transmutation amount will be decreased slightly. For the rare earth (RE) from the partitioning, the accompaniment of 5 wt.% RE against the MA weight is allowable. In the reprocessing, the decontamination factor, DF=10 for RE is enough from the viewpoint of the neutronics design.

22 (Records 1-20 displayed on this page)