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  Subjects -> ENERGY (Total: 306 journals)
    - ELECTRICAL ENERGY (3 journals)
    - ENERGY (184 journals)
    - ENERGY: GENERAL (8 journals)
    - NUCLEAR ENERGY (30 journals)
    - PETROLEUM AND GAS (52 journals)
    - RENEWABLE ENERGY (29 journals)

ENERGY (184 journals)                 | Last

Showing 1 - 200 of 406 Journals sorted alphabetically
ActaEnergetica     Open Access  
Advances in Building Energy Research     Hybrid Journal   (Followers: 9)
Advances in Energy and Power     Open Access   (Followers: 5)
Advances in High Energy Physics     Open Access   (Followers: 21)
Advances in Natural Sciences: Nanoscience and Nanotechnology     Open Access   (Followers: 28)
American Journal of Energy Research     Open Access   (Followers: 9)
Annals of Nuclear Energy     Hybrid Journal   (Followers: 8)
Annual Reports on NMR Spectroscopy     Full-text available via subscription   (Followers: 3)
Annual Review of Resource Economics     Full-text available via subscription   (Followers: 12)
Applied Nanoscience     Open Access   (Followers: 8)
Applied Solar Energy     Hybrid Journal   (Followers: 15)
Archives of Thermodynamics     Open Access   (Followers: 7)
Artificial Photosynthesis     Open Access   (Followers: 1)
Asian Bulletin of Energy Economics and Technology     Open Access   (Followers: 3)
Atomic Energy     Hybrid Journal   (Followers: 4)
Atoms for Peace: an International Journal     Hybrid Journal   (Followers: 3)
Batteries     Open Access   (Followers: 3)
Biofuel Research Journal     Open Access   (Followers: 4)
Biofuels     Hybrid Journal   (Followers: 10)
Biofuels Engineering     Open Access  
Biomass Conversion and Biorefinery     Partially Free   (Followers: 10)
Bulletin de droit nucleaire     Full-text available via subscription   (Followers: 1)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 39)
Canadian Water Resources Journal     Hybrid Journal   (Followers: 20)
Carbon Management     Hybrid Journal   (Followers: 6)
Catalysis for Sustainable Energy     Open Access   (Followers: 5)
CERN courier. International journal of high energy physics     Free   (Followers: 7)
Chain Reaction     Full-text available via subscription   (Followers: 1)
Clefs CEA     Full-text available via subscription   (Followers: 1)
Computational Water, Energy, and Environmental Engineering     Open Access   (Followers: 4)
Dams and Reservoirs     Hybrid Journal   (Followers: 4)
Development of Energy Science     Open Access   (Followers: 4)
Distributed Generation & Alternative Energy Journal     Hybrid Journal   (Followers: 3)
E3S Web of Conferences     Open Access  
Economics and Policy of Energy and the Environment     Full-text available via subscription   (Followers: 8)
Electrical and Power Engineering Frontier     Open Access   (Followers: 21)
Electricity Journal     Partially Free   (Followers: 1)
ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations     Open Access   (Followers: 1)
Energy     Partially Free   (Followers: 24)
Energy & Environment     Hybrid Journal   (Followers: 16)
Energy & Fuels     Full-text available via subscription   (Followers: 26)
Energy and Buildings     Hybrid Journal   (Followers: 10)
Energy and Emission Control Technologies     Open Access   (Followers: 4)
Energy and Environment Focus     Free   (Followers: 6)
Energy and Environment Research     Open Access   (Followers: 11)
Energy and Environmental Engineering     Open Access   (Followers: 6)
Energy and Power     Open Access   (Followers: 8)
Energy and Power Engineering     Open Access   (Followers: 17)
Energy Conversion and Management     Hybrid Journal   (Followers: 10)
Energy Efficiency     Hybrid Journal   (Followers: 11)
Energy Harvesting and Systems : Materials, Mechanisms, Circuits and Storage     Hybrid Journal   (Followers: 3)
Energy Law Journal     Full-text available via subscription   (Followers: 4)
Energy Materials : Materials Science and Engineering for Energy Systems     Hybrid Journal   (Followers: 17)
Energy Policy     Partially Free   (Followers: 57)
Energy Prices and Taxes     Full-text available via subscription   (Followers: 5)
Energy Procedia     Open Access   (Followers: 2)
Energy Reports     Open Access   (Followers: 4)
Energy Research & Social Science     Full-text available via subscription   (Followers: 4)
Energy Science & Engineering     Open Access   (Followers: 3)
Energy Science and Technology     Open Access   (Followers: 12)
Energy Storage Materials     Full-text available via subscription   (Followers: 1)
Energy Strategy Reviews     Partially Free   (Followers: 9)
Energy Studies Review     Open Access   (Followers: 5)
Energy Systems     Hybrid Journal   (Followers: 13)
Energy Technology     Partially Free   (Followers: 5)
Energy Technology & Policy     Open Access   (Followers: 2)
Energy, Sustainability and Society     Open Access   (Followers: 17)
Environmental Progress & Sustainable Energy     Hybrid Journal   (Followers: 7)
EPJ Photovoltaics     Open Access   (Followers: 4)
Facta Universitatis, Series : Electronics and Energetics     Open Access  
Foundations and Trends® in Renewable Energy     Full-text available via subscription   (Followers: 1)
Frontiers in Energy     Hybrid Journal   (Followers: 3)
Frontiers in Energy Research     Open Access   (Followers: 3)
Fuel and Energy Abstracts     Full-text available via subscription   (Followers: 5)
Functional Materials Letters     Hybrid Journal   (Followers: 1)
Gcb Bioenergy     Open Access   (Followers: 2)
Geomechanics for Energy and the Environment     Full-text available via subscription   (Followers: 1)
Geothermal Energy     Open Access   (Followers: 3)
Geothermal Energy Science     Open Access  
Green     Hybrid Journal   (Followers: 1)
Green Energy & Environment     Open Access   (Followers: 2)
IEA Electricity Information     Full-text available via subscription   (Followers: 2)
IEA Natural Gas Information     Full-text available via subscription   (Followers: 3)
IEEE Power and Energy     Full-text available via subscription   (Followers: 24)
IEEE Transactions on Energy Conversion     Hybrid Journal   (Followers: 11)
IEEE Transactions on Nuclear Science     Hybrid Journal   (Followers: 9)
IEEE Transactions on Power Systems     Hybrid Journal   (Followers: 27)
IET Power Electronics     Hybrid Journal   (Followers: 24)
Ingeniería Energética     Open Access  
Innovations : Technology, Governance, Globalization     Hybrid Journal   (Followers: 12)
International Journal of Alternative Propulsion     Hybrid Journal   (Followers: 6)
International Journal of Ambient Energy     Hybrid Journal   (Followers: 1)
International Journal of Applied Power Engineering     Open Access   (Followers: 4)
International Journal of Clean Coal and Energy     Open Access   (Followers: 5)
International Journal of Coal Science & Technology     Open Access   (Followers: 1)
International Journal of Electric and Hybrid Vehicles     Hybrid Journal   (Followers: 9)
International Journal of Emerging Electric Power Systems     Hybrid Journal   (Followers: 4)
International Journal of Emerging Multidisciplinary Fluid Sciences     Full-text available via subscription   (Followers: 2)
International Journal of Energy and Environmental Engineering     Open Access   (Followers: 4)
International Journal of Energy and Power     Open Access   (Followers: 9)
International Journal of Energy and Statistics     Hybrid Journal   (Followers: 2)
International Journal of Energy Engineering     Open Access   (Followers: 9)
International Journal of Energy Research     Hybrid Journal   (Followers: 8)
International Journal of Energy Science     Open Access   (Followers: 1)
International Journal of Flow Control     Full-text available via subscription   (Followers: 5)
International Journal of Global Energy Issues     Hybrid Journal   (Followers: 8)
International Journal of Green Energy     Hybrid Journal   (Followers: 9)
International Journal of Hydrogen Energy     Partially Free   (Followers: 13)
International Journal of Marine Energy     Full-text available via subscription   (Followers: 1)
International Journal of Nuclear Desalination     Hybrid Journal  
International Journal of Nuclear Energy Science and Technology     Hybrid Journal   (Followers: 4)
International Journal of Nuclear Governance, Economy and Ecology     Hybrid Journal   (Followers: 1)
International Journal of Nuclear Hydrogen Production and Applications     Hybrid Journal   (Followers: 1)
International Journal of Nuclear Knowledge Management     Hybrid Journal   (Followers: 1)
International Journal of Ocean and Climate Systems     Open Access   (Followers: 7)
International Journal of Power and Energy Conversion     Hybrid Journal   (Followers: 3)
International Journal of Smart Grid and Green Communications     Hybrid Journal  
International Journal of Sustainable Energy     Hybrid Journal   (Followers: 12)
International Journal of Sustainable Energy Planning and Management     Open Access   (Followers: 3)
International Journal of Sustainable Engineering     Hybrid Journal   (Followers: 7)
International Journal of Thermodynamics     Open Access   (Followers: 9)
Journal of Alternate Energy Sources & Technologies     Full-text available via subscription  
Journal of Building Performance Simulation     Hybrid Journal   (Followers: 6)
Journal of China Coal Society     Open Access  
Journal of Computational Multiphase Flows     Open Access  
Journal of Energy     Open Access  
Journal of Energy & Natural Resources Law     Hybrid Journal   (Followers: 2)
Journal of Energy Chemistry     Full-text available via subscription   (Followers: 2)
Journal of Energy in Southern Africa     Open Access   (Followers: 2)
Journal of Energy Storage     Full-text available via subscription  
Journal of Energy Technologies and Policy     Open Access   (Followers: 5)
Journal of Energy, Environment & Carbon Credits     Full-text available via subscription   (Followers: 2)
Journal of Fusion Energy     Hybrid Journal   (Followers: 3)
Journal of International Energy Policy     Open Access   (Followers: 3)
Journal of Modern Power Systems and Clean Energy     Open Access   (Followers: 8)
Journal of Nano Energy and Power Research     Full-text available via subscription   (Followers: 4)
Journal of Nuclear Energy Science & Power Generation Technology     Hybrid Journal   (Followers: 2)
Journal of Ocean Engineering and Marine Energy     Hybrid Journal   (Followers: 1)
Journal of Physical Chemistry C     Full-text available via subscription   (Followers: 28)
Journal of Power Electronics & Power Systems     Full-text available via subscription   (Followers: 7)
Journal of Radiological Protection     Full-text available via subscription   (Followers: 4)
Journal of Renewable Energy     Open Access   (Followers: 5)
Journal of Semiconductors     Full-text available via subscription   (Followers: 3)
Journal of Solar Energy     Open Access   (Followers: 8)
Journal of Solar Energy Engineering     Full-text available via subscription   (Followers: 17)
Journal of Sustainable Bioenergy Systems     Full-text available via subscription   (Followers: 1)
Journal of Sustainable Energy Engineering     Full-text available via subscription   (Followers: 1)
Journal of Technology Innovations in Renewable Energy     Hybrid Journal  
Materials for Renewable and Sustainable Energy     Open Access   (Followers: 7)
Natural Resources     Open Access   (Followers: 2)
Nature Energy     Hybrid Journal   (Followers: 4)
Nigerian Journal of Technological Research     Full-text available via subscription  
Nuclear Data Sheets     Full-text available via subscription  
Nuclear Engineering and Design     Hybrid Journal   (Followers: 12)
Nuclear Law Bulletin     Full-text available via subscription   (Followers: 2)
Nuclear Materials and Energy     Open Access   (Followers: 1)
Oil and Gas Journal     Full-text available via subscription   (Followers: 11)
Oil, Gas, Coal and Electricity - Quarterly Statistics - Electricite, charbon, gaz et petrole - Statistiques trimestrielles     Full-text available via subscription   (Followers: 9)
Open Journal of Energy Efficiency     Open Access   (Followers: 2)
Power Technology and Engineering     Hybrid Journal   (Followers: 3)
Proceedings of the Institution of Civil Engineers - Energy     Hybrid Journal   (Followers: 3)
Progress in Nuclear Energy     Hybrid Journal   (Followers: 1)
Radiochimica Acta     Hybrid Journal   (Followers: 5)
Radioprotection     Hybrid Journal   (Followers: 1)
Science and Technology of Nuclear Installations     Open Access   (Followers: 2)
Smart Grid and Renewable Energy     Open Access   (Followers: 8)
Solar Energy     Hybrid Journal   (Followers: 19)
Solar Energy Materials and Solar Cells     Hybrid Journal   (Followers: 31)
SourceOCDE Energie nucleaire     Full-text available via subscription  
SourceOECD Nuclear Energy     Full-text available via subscription   (Followers: 1)
South Pacific Journal of Natural and Applied Sciences     Hybrid Journal  
Strategic Planning for Energy and the Environment     Hybrid Journal   (Followers: 4)
Structural Control and Health Monitoring     Hybrid Journal   (Followers: 6)
Surface Science Reports     Full-text available via subscription   (Followers: 15)
Sustainable Energy     Open Access   (Followers: 1)
Sustainable Energy Technologies and Assessments     Full-text available via subscription  
Sustainable Energy, Grids and Networks     Hybrid Journal   (Followers: 1)
Technology Audit and Production Reserves     Open Access  
Universal Journal of Applied Science     Open Access   (Followers: 2)
Washington and Lee Journal of Energy, Climate, and the Environment     Open Access   (Followers: 3)
Waste Management     Hybrid Journal   (Followers: 11)
Water International     Hybrid Journal   (Followers: 13)
Wiley Interdisciplinary Reviews : Energy and Environment     Hybrid Journal   (Followers: 5)
Wind Energy     Hybrid Journal   (Followers: 2)
Wind Engineering     Hybrid Journal   (Followers: 2)

       | Last

Journal Cover Atomic Energy
  [SJR: 0.216]   [H-I: 12]   [4 followers]  Follow
    
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 1573-8205 - ISSN (Online) 1063-4258
   Published by Springer-Verlag Homepage  [2335 journals]
  • Particularities of Steel Structural Elements of Reactor Facilities with
           Heavy Liquid Metal Coolant
    • Abstract: The experimental investigations performed at NGTU of the characteristics of the near-wall layer in the flow of a heavy liquid metal coolant as well as the influence of the regime parameters of the loop (velocity of liquid metal coolant over contact surfaces, thermodynamic activity of oxygen, coolant temperature, and circulation time) on the change of its operating characteristics – surface roughness of the structural material during prolonged contact with high-temperature coolant flow (lead, lead–bismuth) – are analyzed.
      PubDate: 2017-02-20
       
  • Erratum to: Experimental-Computational Investigation of the Energy-Release
           Field and Field Burnup in IRT
    • PubDate: 2017-02-18
       
  • Offset-Cardinality Phase Diagram Method of Controlling Reactor Power
    • Abstract: The method of routine control of the power release in the VVER-1000 reactor using the offset-cardinality phase diagram is examined. This method minimizes the changes in the local power release accompanying a change in the running values of the reactor power and the axial offset, characterizing the unevenness of the power distribution over the core height. The results of computational validation of the method are presented. The rules for using offset-cardinality diagrams for operating units of VVER-1000 are presented.
      PubDate: 2017-02-18
       
  • Application of Quasi-Ideal Cascades and the Dilution Operation for
           Purification of Regenerated Uranium Hexafluoride
    • Abstract: Purification of regenerated uranium in a two-cascade scheme with a dilution operation is proposed. The first cascade has one feed flow, two product flows, and one waste flow. It is calculated as an ideal cascade with adjustment of the obtained 235U concentration to a prescribed content in the exterior flows. Lowenrichment uranium hexafluoride, intended for the fabrication of nuclear fuel, is obtained in the primary product. A product with the same 235U concentration as in the feed flow and reduced 232,234U is produced in the intermediate product of the cascade. This product is enriched with 235U in the second cascade, which is an R-cascade with the key components 235,236UF6. The enriched uranium hexafluoride obtained in the product is diluted to 235U concentration below 5%. The 236U content decreases as a result.
      PubDate: 2017-02-18
       
  • Prediction of Oscillations of the Thermodynamic Parameters of the Cooling
           System of the IBR-2M Reactor Using Neural Nets
    • Abstract: The problem of predicting the oscillations of the main thermodynamic parameters of the core in the first loop of the sodium cooling system of IBR-2M reactor is examined. Attention is focused mainly on the prediction of the temperature and sodium flow at the entry into the core as well as the thermal power. It is shown that the prediction makes it possible to reduce by a factor of 3 the influence of slow oscillations of reactivity on the power and thereby reduce the operational requirements for the automatic power stabilization system. Neural-net prediction using nonlinear autoregression nets with feedback is proposed. The results agree with experiment to within ~5%.
      PubDate: 2017-02-18
       
  • Radioecological Validation of the Extraction Parameters of Fission
           Products and Actinides from Spent Nuclear Fuel from the BREST-OD-300
           Reactor
    • Abstract: The aim of this work is to validate the extraction parameters of fission products and actinides from the spent nuclear reactor fuel of the BREST-OD-300 reactor on the basis of the concept of radio-ecological balance. The dose loads due to long-lived high-level wastes and natural uranium are compared for humans. Different variants of extraction of fissile materials U, Pu, and Np from spent fuel with residual content in the wastes 0.1–1% of the initial content and americium with residual content in the wastes 0.1–10% of the initial content with decay period of the spent fuel in the range 1–100 years were taken as initial data. It was found that for the indicated variants of reprocessing it is impossible to achieve radioecological balance for humans after 500 years without extracting 99Tc with residual content in the wastes not exceeding 5% of the initial content in the spent fuel. The time to achieve balance can be reduced to 300 years with additional extraction of 137Cs.
      PubDate: 2017-02-18
       
  • Evaluation of the Effect of Linear Scattering Anisotropy and Boundary
           Shape on the Calculation of K ∞ for VVER-1000 Cells with Mixed
           Uranium-Plutonium Power-Grade Fuel
    • Abstract: The method of surface pseudo sources for solving the multigroup neutron transport equation with scattering anisotropy and different boundary conditions by the operator splitting method was developed previously. The method was implemented in the RATsIYa option of the WIMS-SH-2.0 complex. The impact of scattering anisotropy and the form of the boundary conditions on K ∞ of VVER-1000 reactor cells with uranium-plutonium power-grade fuel was investigated. The calculations showed that the impact of each of these two effects is about 0.5%; they have different signs, as a result of which they largely compensate one another.
      PubDate: 2017-02-18
       
  • Study of the Present-Day Geodynamics of the Nizhnekansk Massif for Safe
           Disposal of Radioactive Wastes
    • Abstract: The results of a study of the present-day motions of the Earth’s crust, using GPS/GLONASS satellite systems, within the Nizhnekansk massif (Krasnoyarsk krai), where the construction of an underground repository for the disposal of high-level radioactive wastes is planned. Observations conducted in 2010–2014 have provided new information about the regime of present-day motions at the junction of the largest tectonic structures region – the Siberian platform and West Siberian plate as unified parts having deep geodynamic force sources. On the whole, no anomalous values of present-day motions of the Earth’s crust, suggesting the presence of tectonic instability of the geological environment, have been recorded.
      PubDate: 2017-02-18
       
  • Parrad System and Its Testing on Real Radioactive Emissions Into the
           Atmosphere
    • Abstract: A system for predicting accidental dissemination of radionuclides into the atmosphere at operating NPP (PARRAD) is described. The methodological and functional components of the system are presented. The results of testing the system on examples of accidental emissions at the Fukushima NPP, an incident at a heavy machine building plant in Elektrostal, and emissions in the ACURATE experiment are presented.
      PubDate: 2017-02-18
       
  • Hydrolysis of Sodium Beryllate in Beryllium Hydroxide Production
           Technology
    • Abstract: Experimental studies of the hydrolysis of sodium beryllate, which plays an important role in the production of beryllium hydroxide, are expounded. The influence of the caustic modulus on the completeness of beryllium extraction into hydroxide and the decomposition kinetics of sodium beryllate are studied. The parameters of hydrolysis in application to alkali solutions of autoclave breakdown of beryllium-containing concentrate are presented. It is shown that aluminum can be efficiently separated from beryllium during hydrolysis of sodium beryllate.
      PubDate: 2017-02-18
       
  • Development and Verification of a Model of RVK-500, -1000 Recombiners for
           Modeling the Containment Shells of NPP with VVER by Computational
           Hydrodynamics
    • Abstract: A model of a passive autocatalytic hydrogen recombiner (RVK-500, -1000) for use in hydrodynamic calculations of hydrogen transport and recombination processes in a VVER containment shell during a severe accident is described. The model includes calculation of the efficiency of the recombiner, the hydraulic resistance to gas flow through the recombiner, and heat losses owing to radiation from the casing of the recombiner. The model was parameterized and verified on experiments performed on a stand at VTI and INPK RET for hydrogen-air compositions with hydrogen volume fraction up to 10%. Good agreement was obtained between the calculations and experiments. Its simplicity and efficacy make it possible to use the model in hydrodynamic calculations of processes with recombiners in a real containment shell.
      PubDate: 2017-02-18
       
  • Possibility of Obtaining High-Activity 177 Lu in the IR-8 Research Reactor
    • Abstract: The results of the production of the medical isotope 177Lu in the IR-8 research reactor are presented. The quantitative and qualitative characteristics of the desired radionuclide are determined. The radiochemical method of separating 177Lu from an irradiated target 176Yb by a combination of two electrochemical processes – cementation of ytterbium from acetate-chloride solution on sodium amalgam and electrolysis of an ytterbium solution in a single electrolytic cell – is proposed. The purification factor for removal of 176Yb from 177Lu was 105–106.
      PubDate: 2017-02-18
       
  • Use of the CFD-Code CONV-3D in Reactor Applications
    • Abstract: The results of testing the CONV-3D code and methods of direct numerical modeling, using supercomputers, of turbulent flows in the elements of nuclear power plants are presented for problems as close as possible to real processes: natural and forced convection of sodium in the upper plenums of the Monju nuclear power plant in Japan and mixing of the two flows at different temperatures in the secondary loop of the Phénix reactor in France. The particularities of the method for calculating the thermo- and hydrodynamic characteristics of the equipment in nuclear power plants are listed.
      PubDate: 2017-02-18
       
  • Microwave Method of Identifying Explosions
    • Abstract: The informative parameters of microwave signals making it possible for distinguish by means of passive radiolocation a nuclear explosion in the atmosphere among other sources of microwave radiation (lightning or accident at NPP) and to evaluate the power and altitude of the explosion are discussed. The wavelengths falling within the atmospheric transparency range from several millimeters to tens of centimeters are examined.
      PubDate: 2017-02-18
       
  • Detector for Selective Detection of Particles and Ions Based on an
           Epitaxial Layer of Synthetic Diamond
    • Authors: N. B. Rodionov; V. N. Amosov; K. K. Artem’ev; S. A. Meshchaninov; V. P. Rodionova; R. A. Khmel’nitskii; V. A. Dravin; A. P. Bol’shakov; V. G. Ral’chenko
      Abstract: A particle and ion detector based on an epitaxial layer of synthetic diamond is investigated. The p–i structure consists of a substrate comprised of HPHT p-type diamond, strongly doped with boron, on which ~10 μm thick, IIa-type, diamond CVD-film is deposited. Continuous contacts were deposited on the substrate and diamond CVD fi lm. The current-voltage characteristics of the p–i structure with deposited platinum contacts were measured. The detector was tested in fluxes of protons, deuterons, and α-particles obtained by means of an ion accelerator. The use of a diamond detector as a particle analyzer is promising in view of its unique properties, such as high radiation resistance and the possibility of operating at high temperature. The energy resolution of the detector and the minimum detectable particle energy were determined.
      PubDate: 2016-11-24
      DOI: 10.1007/s10512-016-0172-1
       
  • Measurement of the Kinematic Viscosity of the Eutectic LiF–AlF 3
    • Authors: A. V. Merzlyakov; V. V. Ignat’ev; S. S. Abalin
      Abstract: The kinematic viscosity of a eutectic salt mixture with the molar composition 0.855LiF–0.145AlF3 at temperatures to 850°C is measured by means of damped torsional vibrations of a cylinder with the experimental liquid. This salt mixture is of interest for separating actinides and lanthanides during reprocessing of spent nuclear fuel. Below 800°C the behavior of the system is found to differ from that of a normal liquid. Such behavior is explained by precipitation on solid surfaces. The precipitated fraction of the material is evaluated as a function of temperature. An analytical expression is obtained for the kinematic viscosity at temperatures above 800°C. The standard deviation of the kinematic viscosity evaluated assuming the dispersion to be independent of temperature equals 0.006·10–6 m2/sec. The total error of measurement does not exceed 3%.
      PubDate: 2016-11-24
      DOI: 10.1007/s10512-016-0169-9
       
  • Effect of Fission Products and Oxygen and Carbon Impurities in (U, Pu)N on
           the Heat-and-Mass Transfer Coefficients and Xenon Yield
    • Authors: I. A. Deryabin; V. S. Kharitonov; D. Yu. Lyubimov
      Abstract: Irradiation of uranium-plutonium mononitride by fast neutrons results in the formation and accumulation of fission products, which, for example, lanthanides, zirconium, and yttrium, dissolve in the fuel solid solution, changing its chemical composition and stoichiometry, or precipitate in the form of individual condensed phases, changing the phase composition of the fuel. These phase inclusions are formed inside and on the boundaries of fuel grains, changing the coefficients of heat-and-mass transfer. A change in the effective coefficient of heat-and-mass transfer results in a transformation of the temperature field in a fuel element, which means that the temperature part of the diffusion coefficient changes. The diffusion coefficient in solid phase inclusions is different from the diffusion coefficient in the fuel matrix, as a result of which the effective diffusion coefficient changes. A model of the yield of stable, radioactive, inert gases from uraniumplutonium mononitride fuel is presented and used to calculate the xenon yield taking account of the changes in the coefficients of heat-and-mass transfer and diffusion.
      PubDate: 2016-11-24
      DOI: 10.1007/s10512-016-0168-x
       
  • Modeling of Elastoplastic Strain of the Protective Casings of Equipment
           Fittings
    • Authors: V. M. Markochev; N. I. Tarasov
      Abstract: The elastoplastic strain processes in the protective casings of the fittings used to position coolant temperature sensors are analyzed. The expected cyclic elastoplastic strain due to scheduled and forced shutdown of equipment in power-generating units is evaluated.
      PubDate: 2016-11-24
      DOI: 10.1007/s10512-016-0170-3
       
  • NPP Nuclear Power Reactors as 14 C Sources
    • Authors: V. P. Rublevskii; V. N. Yatsenko
      Abstract: Research has determined the actual 14C emissions from all types of reactors. The average emissions are (TBq/yr): VVER-440 (V-179, -230) 3.1 ± 1.5; VVER-440 (V-213) 1.3 ± 0.5; VVER-1000 2.0 ± 0.7; RBMK-1000 2.4 ± 1.6. The obtained data agree satisfactorily with the calculations, so that they can be used to predict the emissions from commissioned power reactors. The normalized 14C emissions from different types of foreign reactors, which approximately correspond to domestic reactors, are presented in UNSCEAR reports. The total atmospheric emissions of 14C by NPP reactors over the entire period of their operation (in 2015) equaled ~1.34 PBq. Over this same period about 54 PBq of native 14C entered the carbon cycle of the Earth’s biosphere; this is almost 50 times greater than the surveyed NPP.
      PubDate: 2016-11-24
      DOI: 10.1007/s10512-016-0175-y
       
  • Recovery of the Point Pseudoresonance Structure of Cross Sections in the
           Region of Unresolved Resonances
    • Authors: V. M. Shmakov
      Abstract: A model is proposed for recovering the point cross sections in the region of unresolved resonances. The approach consists in using probability tables P i (σ) to construct the effective cross sections σ i ′ (E) on some choice of energy intervals [E i , E i+1]. In constructing the effective cross sections the densities P i (σ′) and P i (σ) are preserved. This makes it possible to preserve on the intervals [E i , E i+1] characteristics of the neutron–matter interactions such as the average cross section, average free path, transmission function, and others. The use of pseudoresonances in the field of unresolved resonances is not distinguished from the use of ordinary point cross sections in the region of resolved resonances. The proposed approach does not require modifications of the library formats and modeling schemes for the neutron trajectories in Monte Carlo programs. The calculations of two problems showed good agreement between the calculations of the change ΔK eff using probability tables and the MCNP code and calculations using the PRIZMA code, in which pseudoresonances were used.
      PubDate: 2016-11-24
      DOI: 10.1007/s10512-016-0173-0
       
 
 
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