scholarly journals The Forecasting of Corrosion Damage of Structural Materials during Dry Long-Term Storage of RD BN-350 SNF with CC-19 SFA

2019 ◽  
Vol 2019 ◽  
pp. 1-9
Author(s):  
Ye. T. Koyanbayev ◽  
M. K. Skakov ◽  
E. G. Batyrbekov ◽  
I. I. Deryavko ◽  
Ye. Ye. Sapatayev ◽  
...  
Keyword(s):  
Corrosion Damage ◽  
Spent Fuel ◽  
Thermal Tests ◽  
Fuel Element Cladding ◽  
Long Term Storage ◽  
Fuel Assemblies ◽  
Before And After ◽  
Radionuclide Release ◽  
Term Storage

There are results of long-term thermal aging of samples of irradiated and nonirradiated FA jacket and nonirradiated fuel element cladding at a temperature range from 300 to 550°C in argon, to 600°C in air. Materials have been studied before and after thermal tests. The forecast estimation of expected corrosion damage of barrier material at the radionuclide release from spent fuel assemblies of BN-350 reactor into environment during dry storage for 50 years was carried out.

Dry Storage of the BR3 Spent Fuel in the CASTOR® BR3 Cask

2003 ◽  
Author(s):  
Luc Ooms ◽  
Vincent Massaut ◽  
L. Noynaert ◽  
M. Braeckeveldt ◽  
G. Geenen
Keyword(s):  
Spent Fuel ◽  
Dual Purpose ◽  
Shock Absorbers ◽  
Commercial Plant ◽  
Long Term Storage ◽  
Fuel Assemblies ◽  
Test Reactor ◽  
And Storage ◽  
Term Storage

The BR3 reactor was the first PWR plant installed in Europe. Started in 1962, BR3 was definitely shut down on June 30th, 1987. Used at the beginning of its life as a training device for commercial plant operators, it was also used during its whole life as test-reactor for new fuel types and assemblies. Most of the spent fuel was stored in the deactivation pool of the plant for more than 15 years. The reactor being now in decommissioning, it was decided to remove the spent fuel from the plant. After comparison of different solutions, the long term storage in dual purpose storage casks was selected in 1997. The selected CASTOR-BR3® cask is designed as a transport and storage cask for accommodating 30 spent fuel assemblies. As a type B(U) cask fitted with shock absorbers, it meets the transport requirements according to the IAEA guidelines and fulfils also the conditions for cask storage.

scholarly journals EFFECT OF FREEZING ON THE MILK QUALITY OF COWS

2020 ◽  
pp. 54-57
Author(s):  
Lyubov Valentinovna Efimova ◽  
Tatyana Vyacheslavovna Zaznobina ◽  
Elena Vladimirovna Gatilova ◽  
Olga Valeryevna Ivanova
Keyword(s):  
Quality Indicators ◽  
Age Groups ◽  
Milk Quality ◽  
Long Term Storage ◽  
Before And After ◽  
Frozen State ◽  
Term Storage ◽  
Two Age Groups

Due to the fact that milk has a short shelf life, the issue of its freezing and long-term storage in the frozen state is relevant. A study was conducted on the effect of freezing on the milk quality after its defrosting of cows-mothers and cows-daughters of Red-Motley breed. As a result, it was established how milk quality indicators to change after five months of storage in a frozen state in cows of two age groups. A high correlation was established between quality indicators before and after freezing. The influence of the “freezing” factor on milk quality indicators was recognized statistically significant, the “generation” factor – not significant.

scholarly journals Does long-term storage of clay samples influence their mechanical characteristics?

2020 ◽  
Vol 57 (2) ◽  
pp. 304-309 ◽  
Author(s):  
Mustapha Abdellaziz ◽  
Mahmoud N. Hussien ◽  
Mohamed Chekired ◽  
Mourad Karray
Keyword(s):  
Mechanical Characteristics ◽  
Long Term Storage ◽  
Temperature And Humidity ◽  
Before And After ◽  
Prime Objective ◽  
Term Storage ◽  
Physical And Mechanical Characteristics

The prime objective of this study is to assess the influence of long-term storage on the physical and mechanical characteristics of clay samples. Samples from two different clays were sealed and stored in a temperature- and humidity-controlled room at the geotechnical laboratory of the Université de Sherbrooke for up to 27 years. The stored clay samples were tested before and after long-term storage and the results compared in this note. The comparison showed that even with long-term storage, the majority of the physical and mechanical characteristics of the samples were preserved.

ICONE15-10363 VVER FUEL ASSEMBLIES MONITORING IN LONG TERM STORAGE CONDITION

2007 ◽  
Vol 2007.15 (0) ◽  
pp. _ICONE1510-_ICONE1510
Author(s):  
M. Miklos ◽  
V. Slugen ◽  
V. Krsjak ◽  
I. Smiesko ◽  
M. Bozik ◽  
...  
Keyword(s):  
Storage Condition ◽  
Vver Fuel ◽  
Long Term Storage ◽  
Fuel Assemblies ◽  
Term Storage

Decommissioning of the A-1 NPP Long-Term Storage Facility

2009 ◽  
Author(s):  
Jan Medved ◽  
Ladislav Vargovcik
Keyword(s):  
Nuclear Power ◽  
Water Jet ◽  
Stage I ◽  
Stage Ii ◽  
Storage Facility ◽  
Spent Fuel ◽  
Special Equipment ◽  
Long Term Storage ◽  
Term Storage

The paper deals with experience, techniques and new applied equipment durig undergoing decommissioning process of the A-1 NPP long-term pool storage and the follow-up decommissioning plan. For rad-waste disposal of the long-term pool storage (where most of the contaminants had remained following the removal of spent fuel) special equipment has been developed, designed, constructed and installed. The purpose of this equipment is the restorage, drainage and fragmentation of cartridges (used as a spent fuel case), as well as treatment of sludge (located at the pool bottom) and of the remaining liquid radwaste. The drainage equipment for cartridges is designed for discharging KCr2 solution from cartridges with spent fuel rods into the handling storage tank in the short-term storage facility and adjustment of the cartridges for railway transport, prior to the liquidation of the spent fuel rod. The equipment ensures full remote visual control of the process and exact monitoring of its technical parameters, including that of the internal nitrogen atmosphere concentration value. Cartridges without fuel and liquid filling are transferred to the equipment for their processing which includes fragmentation into smaller parts, decontamination, filling into drums with their sealed closing and measurement of radioactive dose. For the fragmentation, special shearing equipment is used which leaves the pipe fragment open for the following decontamination. For cleaning the cartridge bottom from radioactive sludge water jet system is used combined with slow speed milling used for preparing the opening for water jet nozzle. The sludge from the cartridge bottom is fixed into ceramic matrix. Nuclear Power Plant JE A-1 (since 1980 in decommissioning) is situated in the locality of Jaslovske´ Bohunice. So far the decommissioning of the Long-term storage was carried out within Stage I of A-1NPP decommissioning. This year the Stage I of decommissioning finished, and the performance of Stage II of decommissioning was started. Decommissioning of the long-term storage facility continues within Stage II of the A-1 NPP decommissioning process.

Sorption of Actinides in Well-Defined Oxidation States on Geologic Media

1981 ◽  
Vol 11 ◽  
Author(s):  
B. Allard ◽  
U. Olofsson ◽  
B. Torstenfelt ◽  
H. Kipatsi ◽  
K. Andersson
Keyword(s):  
Nuclear Fuel ◽  
Spent Nuclear Fuel ◽  
Oxidation States ◽  
Spent Fuel ◽  
Long Term Storage ◽  
Term Storage ◽  
Geologic Media

The long-lived actinides and their daughter products largely dominate the biological hazards from spent nuclear fuel already from some 300 years after the discharge from the reactor and onwards . Therefore it is essential to make reliable assessments of the geochemistry of these elements in any concept for long-term storage of spent fuel or reprocessing waste, etc.

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