![](images/graphics/blank.gif)
Nuclear spent fuel
-
The VVER-1000 reactors are nowadays widespread used in Russia and numerous countries. With almost 3000 MW of thermal, VVER-1000 is a candidate to transmute minor actinides (MAs) which are the main contributors to the radiotoxicity and decay heat of nuclear spent fuel (SNF).
11p
visnape
30-01-2023
8
4
Download
-
Disposal of spent nuclear fuel is a major political and public-perception problem for nuclear energy. From a radiological standpoint, the long-lived component of spent nuclear fuel primarily consists of transuranic (TRU) isotopes.
13p
vironald
15-12-2022
17
6
Download
-
Finland and Sweden are the countries with the most advanced plans for final disposal of spent nuclear fuel (SNF). Both countries have also been evoked as good examples in the use of a ’partnering’ approach, designed to achieve both a licensable site supported by the community and a balance between fair representation and competent participation.
9p
vironald
15-12-2022
8
4
Download
-
A simulation-based study concerning three non-destructive approaches by which water in spent nuclear fuel assemblies might be quantified with neutrons is described. Three fuel types have been considered: thirty-six spent Advanced Gas-cooled Reactor (AGR) fuel pins contained in a stainless-steel can; a prototype fast reactor (PFR) spent fuel assembly and a light water reactor (LWR) spent fuel assembly – with the PFR and LWR assemblies containing mixed oxide fuels.
25p
vironald
15-12-2022
13
4
Download
-
The performance of the fusion–fission hybrid system based on the molten salt (flibe) blanket, driven by a plasma based fusion device, was analyzed by comparing transmutation scenarios of actinides extracted from the LWR (Sweden) and RBMK (Lithuania) spent nuclear fuel in the scope of the EURATOM project BRILLIANT.
9p
vironald
15-12-2022
10
3
Download
-
In this paper, the application of small channels on spent nuclear fuel reprocessing has been investigated. A mathematical model of a multi-component liquid-liquid extraction has been developed.
11p
vironald
15-12-2022
11
3
Download
-
Validating boiling water reactor (BWR) spent nuclear fuel inventory calculations is challenging due to the complexity of BWR assembly designs, the lack of publicly available radiochemical assay measurements, and limited access to documentation on fuel design and operating conditions.
15p
vironald
15-12-2022
9
3
Download
-
The METAPHIX programme is a collaboration between the Central Research Institute of Electric Power Industry (CRIEPI, Japan) and the Joint Research Centre - Institute for Transuranium Elements (JRC-ITU) of the European Commission dedicated to investigate the safety and effectiveness of a closed nuclear fuel cycle based on Minor Actinides (MA: Np, Am, Cm) separation from spent fuel, incorporation in metal alloy fuel and transmutation in fast reactor.
8p
vironald
15-12-2022
15
3
Download
-
Each year, more than 10 thousand tons of spent fuels are discharged from nuclear power plants in the world. Heavy element nuclear fission reactions, at the origin of energy production, generate fission products of intermediary mass, some of them being considered nowadays as critical raw materials.
7p
vironald
15-12-2022
9
3
Download
-
The assessment in this paper is necessary to demonstrate that sufficient decay heat conservatism is retained in the UNF-ST&DARDS bounding as-loaded spent fuel analysis methodology. This paper also demonstrates the time dependent impact of various parameters such as last cycle power on decay heat values.
25p
vironald
15-12-2022
6
3
Download
-
The basic strategy of Russian nuclear energy is propagation of a closed fuel cycle on the basis of fast breeder and thermal reactors, as well as the solution of the spent nuclear fuel accumulation and resource problems.
7p
christabelhuynh
30-05-2020
8
0
Download
-
The paper deals with dose and temperature characteristics inside the SFCM after transition of the molten mixture to solid state. Calculations were made on simplified spherical models, without connection to some specific nuclear accident.
6p
christabelhuynh
30-05-2020
12
2
Download
-
Partitioning and transmutation strategy R&D for nuclear spent fuel: the SACSESS and GENIORS projects
In this context, and in the continuity of the FP7 EURATOM SACSESS project, GENIORS focuses on the reprocessing of MOX fuel containing minor actinides, taking into account safety issues under normal and mal-operation.
8p
christabelhuynh
29-05-2020
10
1
Download
-
Final repositories for spent nuclear fuel are approaching implementation. A prerequisite for these advancements is that it has been shown that the repository can be constructed and operated in practice in such a way that safety can be assured both during operation and over very long time scales.
7p
christabelhuynh
29-05-2020
7
0
Download
-
This study aims at better understanding the chemical and physico-chemical phenomena of uranium dioxide dissolution reactions in nitric acid media in the Purex process, which separates the reusable materials and the final wastes of the spent nuclear fuels.
13p
christabelhuynh
29-05-2020
11
0
Download
-
This paper presents a study of the impact of the nuclear data (cross sections, neutron emission and spectra) on different quantities for spent nuclear fuels (SNF) from Swiss power plants: activities, decay heat, neutron and gamma sources and isotopic vectors.
15p
christabelhuynh
29-05-2020
3
1
Download
-
A variety of two-dimensional CFD numerical investigations using a turbulent model have been performed to evaluate the heat transfer characteristics and the velocity distribution of natural convection inside the canister. The present numerical solutions for a range of Rayleigh number values (3×106 ~3×107 ) and a working fluid of air are further validated by comparing with the experimental data from previous work, and they agreed well with the experimental results.
10p
minhxaminhyeu5
30-06-2019
26
2
Download
-
The shielding analysis results for the 2x10 cask array showed exponential decrease with distance off the sources. The controlled area boundary was calculated to be approximately 280m from the array, with a dose rate of 25mrem/yr. Actual dose rates within the controlled area boundary will be lower than 25mrem/yr, due to the decay of radioactivity of spent fuel in storage.
10p
minhxaminhyeu5
30-06-2019
20
3
Download
-
The focus on the issues surrounding spent nuclear fuel and lifetime extension of old nuclear power plants continues to grow nowadays. A transparent decision-making process to identify the best suitable nuclear fuel cycle (NFC) is considered to be the key task in the current situation.
17p
minhxaminhyeu4
26-06-2019
29
1
Download
-
The hydrogen-charged specimens were heated to four peak temperatures of 250C, 300C, 350C, and 400C, and then cooled to room temperature at cooling rates of 0.3 C/min under three tensile hoop stresses of 80 MPa, 100 MPa, and 120 MPa. The cool-down specimens showed that high peak heatup temperature led to lower hydrogen content and that larger tensile hoop stress generated larger radial hydride fraction and consequently lower plastic elongation.
8p
minhxaminhyeu4
26-06-2019
14
0
Download