Results 211 to 220 of about 3,976 (241)
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Feasibility of lead cooled breed and burn reactors
Progress in Nuclear Energy, 2012Abstract The objective of the present work is to assess the feasibility and achievable performance of a large Breed-and-Burn (BB less than 10% higher than for Na-cooled core. The maximum possible accumulated burnup in the LBE-cooled B&B core is ∼45% FIMA – smaller than the 55% FIMA possible to achieve in the reference sodium cooled core. For the same
Florent Heidet, Ehud Greenspan
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Energy sustainability and economic stability with Breed and Burn reactors
Progress in Nuclear Energy, 2011Abstract The purpose of the present study is to evaluate the impact a successful development of Breed and Burn (B&B) fast reactors and their fuel reconditioning technologies could have on the uranium ore utilization, uranium enrichment capacity, nuclear waste and energy security. It is found that a successful development of B&B reactors will offer 40-
Florent Heidet, Ehud Greenspan
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Concept of breed and burn reactor with spiral fuel shuffling
Annals of Nuclear Energy, 2019Abstract A spiral fuel-shuffling scheme was proposed to establish an advantageous neutron-economy breed and burn (B&B) operation mode, in which high-reactivity fuels are placed stably in a region of high neutron importance. To reduce the maximum displacements per atom (dpa) value without a fuel reconditioning process, B&B operation mode with smaller ...
Jun Nishiyama, Toru Obara
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Design and performance of 2D and 3D-shuffled breed-and-burn cores
Annals of Nuclear Energy, 2015Abstract The primary objective of this work is to find design approaches that will enable 3D fuel shuffling in stationary breed-and-burn (B&B) cores and to quantify the attainable reduction in peak DPA and change in additional performance characteristics going from conventional 2D to 3D fuel shuffling strategies.
Staffan Qvist +2 more
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Breed-and-burn strategy in a fast reactor with optimized starter fuel
Progress in Nuclear Energy, 2015The in situ breed-and-burn (B&B) strategy in fast reactor is capable of offering very high fuel utilization efficiency. CANDLE (Constant Axial shape of Neutron flux, nuclide densities and power shape During Life of Energy) or TWR (Traveling Wave Reactor) is a possible scheme to implement the B&B strategy. The approach in realizing the equilibrium state
Xiangzhou Cai, Jinfeng Huang
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Performance of Large Breed-and-Burn Core
Nuclear Technology, 2013A sodium-cooled fast reactor breed-and-burn (B&B) core and fuel cycle concept are proposed to achieve uranium utilization in the vicinity of 50% without separation of most of the fission products f...
Florent Heidet, Ehud Greenspan
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Long-life breed/burn reactor design through reshuffle scheme
International Journal of Nuclear Energy Science and Technology, 2015Roberto López Solís +1 more
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Superprism-Sized Breed-and-Burn Sodium-Cooled Core Performance
Nuclear Technology, 2013A preliminary feasibility study is performed for a sodium-cooled breed-and-burn (B&B) fast reactor core for achieving high uranium utilization without solid fission product separation that could fi...
Florent Heidet, Ehud Greenspan
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Response of breeding birds to shearing and burning in wetland brush ecosystems
Wetlands, 1999In the absence of wildfire, emergent wetlands in the American Midwest often succeed to a shrub/scrub wetland type. Management activities, including shearing and burning are typically used to remove shrub, resulting in a more open emergent wetland condition. We surveyed breeding birds in managed and unmanaged shrub/scrub wetlands in northeast Minnesota,
Jo Ann M. Hanowski +2 more
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