scholarly journals Technology Assessment of Near-Term Open-Cycle Thorium-Fuelled Nuclear Energy Systems

2019 ◽  
pp. 117-124
Author(s):  
W. J. Nuttall ◽  
S. F. Ashley ◽  
R. A. Fenner ◽  
P. D. Krishnani ◽  
G. T. Parks
Keyword(s):  
Technology Assessment ◽  
Nuclear Energy ◽  
Energy Systems ◽  
Open Cycle ◽  
Near Term

scholarly journals Fuel cycle modelling of open cycle thorium-fuelled nuclear energy systems

2014 ◽  
Vol 69 ◽  
pp. 314-330 ◽  
Author(s):  
S.F. Ashley ◽  
B.A. Lindley ◽  
G.T. Parks ◽  
W.J. Nuttall ◽  
R. Gregg ◽  
...  
Keyword(s):  
Nuclear Energy ◽  
Fuel Cycle ◽  
Energy Systems ◽  
Open Cycle

Open cycle thorium–uranium-fuelled nuclear energy systems

2013 ◽  
Vol 166 (2) ◽  
pp. 74-81 ◽  
Author(s):  
Stephen F. Ashley ◽  
Richard A. Fenner ◽  
William J. Nuttall ◽  
Geoffrey T. Parks
Keyword(s):  
Nuclear Energy ◽  
Energy Systems ◽  
Open Cycle

Materials for future nuclear energy systems

2019 ◽  
Vol 527 ◽  
pp. 151837 ◽  
Author(s):  
G.S. Was ◽  
D. Petti ◽  
S. Ukai ◽  
S. Zinkle
Keyword(s):  
Nuclear Energy ◽  
Energy Systems

Cross-Comparison of One-Dimensional Thermal-Hydraulic Codes on Natural Circulation Analysis of NACIE Loop Test for Lead-Alloy Cooled Advanced Nuclear Energy Systems (LACANES)

2014 ◽  
Author(s):  
Yong-Hoon Shin ◽  
Il Soon Hwang ◽  
Massimiliano Polidori ◽  
Paride Meloni ◽  
Vincenzo Casamassima ◽  
...  
Keyword(s):  
Phase I ◽  
Phase Ii ◽  
Nuclear Energy ◽  
Natural Circulation ◽  
Energy Systems ◽  
Research Centre ◽  
Hydraulic Loss ◽  
Lead Alloy ◽  
Test Results ◽  
One Dimensional

As one of the Generation-IV reactor concepts, lead-alloy-cooled advanced nuclear energy systems (LACANES) have been studied worldwide in order to utilize the advantages of good heat transfer properties, neutron transparency and chemical inertness with air and water. Since the Fukushima accident, the passive safety aspect of the LACANES is increasingly emphasized due to outstanding natural circulation capability. To investigate the thermal-hydraulic capability of LBE, an international cooperation has been performed under OECD/NEA program, under the guidance of the Nuclear Science Committee by a task force named as Lead Alloy Cooled Advanced Nuclear Energy Systems (LACANES) since 2007. This international collaboration had dealt with computational benchmarking of isothermal LBE forced convection tests in the phase I, and the working group published a guideline for using one-dimensional system codes to simulate LBE forced circulation test results from HELIOS loop. The phase II was started after that, to give an additional guideline in the case of natural circulation. NACIE, one of benchmarking targets for the phase II which is a rectangular-shape loop located at ENEA-Brasimone Research Centre, Italy. NACIE test results were benchmarked by each participant using their one-dimensional thermal-hydraulic codes, and they are to follow the guideline from the LACANES phase I for regions where hydraulic loss occurs. Due to the selection of hydraulic loss coefficient relations by users, the cross-comparison results of international participants showed some discrepancies and the estimated mass flow rates had 13% of maximum error. Also, the future R&D areas are identified.

scholarly journals Elaboration of approach to nuclear energy systems assessment by criterion of sustainable development

2018 ◽  
Vol 4 (1) ◽  
pp. 27-33
Author(s):  
Vladimir I. Usanov ◽  
Stepan A. Kviatkovskii ◽  
Andrey A. Andrianov
Keyword(s):  
Sustainable Development ◽  
Nuclear Fuel ◽  
Nuclear Energy ◽  
Spent Nuclear Fuel ◽  
Fuel Cycle ◽  
Energy Systems ◽  
Nuclear Fuel Cycle ◽  
Time Interval ◽  
Subject Areas ◽  
Key Events

The paper describes the approach to the assessment of nuclear energy systems based on the integral indicator characterizing the level of their sustainability and results of comparative assessment of several nuclear energy system options incorporating different combinations of nuclear reactors and nuclear fuel cycle facilities. The nuclear energy systems are characterized by achievement of certain key events pertaining to the following six subject areas: economic performance, safety, availability of resources, waste handling, non-proliferation and public support. Achievement of certain key events is examined within the time interval until 2100, while the key events per se are assessed according to their contribution in the achievement of sustainable development goals. It was demonstrated that nuclear energy systems based on the once-through nuclear fuel cycle with thermal reactors and uranium oxide fuel do not score high according to the integral sustainable development indicator even in the case when the issue of isolation of spent nuclear fuel in geological formation is resolved. Gradual replacement of part of thermal reactors with fast reactors and closing the nuclear fuel cycle results in the achievement of evaluated characteristics in many subject areas, which are close to maximum requirements of sustainable development, and in the significant enhancement of the sustainability indicator.

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