scholarly journals Spent fuel dry storage technology development: thermal evaluation of isolated drywells containing spent fuel (1 kW PWR spent fuel assembly)

10.2172/59724 ◽  
1980 ◽  
Author(s):  
R Unterzuber ◽  
J B Wright
Keyword(s):  
Fuel Assembly ◽  
Technology Development ◽  
Spent Fuel ◽  
Storage Technology ◽  
Dry Storage

Development of Spent Fuel Dry Storage Technology

2000 ◽  
Vol 2000.7 (0) ◽  
pp. 327-330
Author(s):  
Kunio MARUOKA ◽  
Kenichi MATSUNAGA ◽  
Shigeru KUNISHIMA
Keyword(s):  
Spent Fuel ◽  
Storage Technology ◽  
Dry Storage

scholarly journals REFERENCE FUEL ASSEMBLY FOR DRY STORAGE DEMONSTRATION OF L BASIN SPENT FUEL

2012 ◽  
Author(s):  
R. Sindelar ◽  
P. Leeper ◽  
M. Dunsmuir
Keyword(s):  
Fuel Assembly ◽  
Spent Fuel ◽  
Dry Storage

scholarly journals Trend of Dry Storage Technology of Spent Fuel.

1995 ◽  
Vol 37 (8) ◽  
pp. 675-680 ◽  
Author(s):  
Toshiari SAEGUSA ◽  
Chihiro ITO ◽  
Kohji NAGANO ◽  
Satoshi FUKUDA ◽  
Kenji YAMAJI
Keyword(s):  
Spent Fuel ◽  
Storage Technology ◽  
Dry Storage

Preliminary Design of Unloading Device for MNSR LEU Conversion

2018 ◽  
Author(s):  
Hao Qian ◽  
Li Yiguo ◽  
Peng Dan ◽  
Wu Xiaobo ◽  
Lu Jin ◽  
...  
Keyword(s):  
Fuel Assembly ◽  
Reactor Vessel ◽  
Cover Plate ◽  
Spent Fuel ◽  
Long Distance ◽  
Control Rod ◽  
Small Cover ◽  
Sealing Performance ◽  
Safety And Reliability ◽  
Application Requirements

In order to solve the problem that the current unloading operation will destroy the sealing performance of Miniature Neutron Source Reactor (MNSR) reactor vessel and the tightness can’t be restored, and to meet the application requirements that the original reactor vessel will be reloaded and operated after MNSR LEU conversion, the new unloading device is designed, which can be used without separation of reactor vessel. There has only one fuel assembly in MNSR. When the fuel assembly are unload for MNSR LEU conversion, the cover plate of the pool is removed, the cadmium string is put in, and the neutron detector is placed at first. After removing the drive mechanism and the control rod, and opening the small cover plate at the top of reactor vessel, the fuel assembly can be grabbed and unloaded by unloading tool only through the opening of the small top cover plate. The MNSR spent fuel has very high radioactivity. The auxiliary mechanical device can be used with unloading tools to realize operation in a long distance by lifting and level motion, which is convenient to shield and can reduce the works’ irradiation dose level effectively. Through calculation and analysis, the results show that the structure strength of unloading device is much larger than the actual load to ensure operation safety and reliability. The unloading device is easy to process and operate, and can be used in the practical operation of MNSR LEU conversion or decommissioning at home and abroad to simplify the operation steps and improve the working efficiency.

scholarly journals The Need for Integrating the Back End of the Nuclear Fuel Cycle in the United States of America

MRS Advances ◽  
2018 ◽  
Vol 3 (19) ◽  
pp. 991-1003 ◽  
Author(s):  
Evaristo J. Bonano ◽  
Elena A. Kalinina ◽  
Peter N. Swift
Keyword(s):  
United States ◽  
Nuclear Fuel ◽  
United States Of America ◽  
Spent Nuclear Fuel ◽  
Fuel Cycle ◽  
Nuclear Fuel Cycle ◽  
The United States ◽  
Spent Fuel ◽  
Dry Storage ◽  
The Us

ABSTRACTCurrent practice for commercial spent nuclear fuel management in the United States of America (US) includes storage of spent fuel in both pools and dry storage cask systems at nuclear power plants. Most storage pools are filled to their operational capacity, and management of the approximately 2,200 metric tons of spent fuel newly discharged each year requires transferring older and cooler fuel from pools into dry storage. In the absence of a repository that can accept spent fuel for permanent disposal, projections indicate that the US will have approximately 134,000 metric tons of spent fuel in dry storage by mid-century when the last plants in the current reactor fleet are decommissioned. Current designs for storage systems rely on large dual-purpose (storage and transportation) canisters that are not optimized for disposal. Various options exist in the US for improving integration of management practices across the entire back end of the nuclear fuel cycle.

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