Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Akira Sasahira"'
Publikováno v:
Journal of Nuclear Science and Technology. 57:49-56
An advanced reprocessing system has been developed to treat various SF (spent fuels): spent UO2 and MOX (mixed oxide) fuels from LWR (light water reactor) and MOX fuel from FR (fast reactor). The s...
Publikováno v:
Journal of Nuclear Science and Technology. 54:182-187
To understand the radiolysis of nitric acid in the volatility condition of nitrous acid, which commonly occurs in a spent fuel reprocessing plant, an irradiation experiment of nitric acid aqueous solution was carried out under a gas flow condition in
Publikováno v:
Journal of Nuclear Science and Technology. 53:513-520
Our proposed spent nuclear fuel reprocessing technology named FLUOREX is a hybrid system based on reprocessing technologies of fluorination and solvent extraction for light water reactor fuel. In the current research, we experimentally clarified soli
Autor:
Satoshi Itooka, Katsuyuki Kawashima, Masayuki Takakuwa, Koji Fujimura, Hiroshi Kiyotake, Akira Sasahira
Publikováno v:
Energy Procedia. 71:97-105
High-safety FR core concepts to improve transmutation efficiency of MAs were proposed. A heterogeneous MA loaded core was designed based on the 1000MWt-ABR breakeven core, which assumes the same amount of MAs with the 5%-MA homogeneous loaded core. T
Publikováno v:
Journal of Nuclear Science and Technology. 48:1413-1419
The nuclear fuel reprocessing method FLUOREX is a hybrid system based on fluoride volatility and using solvent extraction. Spent nuclear fuel is fluorinated, and most of the uranium is recovered as UF6 gas. UF6 contains some volatile fission product
Autor:
Kuniyoshi Hoshino, Tetsuo Fukasawa, Tadashi Inoue, Kazuo Minato, Seichi Sato, Akira Sasahira, Junichi Yamashita
Publikováno v:
Energy Procedia. 7:103-109
The transition scenario from LWR to FBR is investigated and the Flexible Fuel Cycle Initiat ive (FFCI) is proposed. The FFCI removes most uranium from LWR spent fuel in LWR reprocessing, and residual material is treated in FBR reprocessing to recover
Publikováno v:
Journal of Fluorine Chemistry. 130:74-82
Our proposed spent nuclear fuel reprocessing technology named FLUOREX, which is a hybrid system using fluoride volatility and solvent extraction, meets the requirements of the future thermal/fast breeder reactors (coexistence) cycle. We have been don
Publikováno v:
Journal of Power and Energy Systems. 3:136-145
According to the Japan's Framework for Nuclear Energy Policy(1), a basic scenario for fast breeder reactors (FBRs) is that they will be introduced on a commercial basis starting around 2050 replacing light water reactors (LWRs). During the FBR introd
Publikováno v:
Applied Geochemistry. 23:2130-2136
Migration properties characterized by physico-chemical factors such as distribution coefficient (Kd) and diffusion coefficient (De) are of great concern in performance assessment of high-level radioactive waste disposal in a deep geologic environment
Publikováno v:
Journal of Power and Energy Systems. 2:164-170
Generation IV type fast reactors (FR) are expected to be commercially deployed instead of light water reactors (LWR) from around 2050. Replacement of LWR to FR needs flexibility due to uncertain factors such as FR deployment rate which affects the FR