The fuel cycle - performance of the first charge fuel and the way forward

1996 ◽  
Author(s):  
M.J. Harrison
Keyword(s):  
Fuel Cycle ◽  
Cycle Performance ◽  
The Way

EPR™: A Reactor to Support Economical Fuel Cycles

2010 ◽  
Author(s):  
S. Zheng ◽  
R. Meinl ◽  
J. Stephens
Keyword(s):  
High Performance ◽  
Fuel Cycle ◽  
Large Range ◽  
Management Strategies ◽  
Systems Design ◽  
Cycle Performance ◽  
Reactor Safety ◽  
Fuel Management ◽  
Fuel Cycles ◽  
Economic Analyses

The EPR™ reactor has been designed by AREVA to support economical fuel cycles. The progress in the reactor and systems design improves the reactor safety, and allows the EPRTM reactor to support the large range of high performance fuel management strategies covering cycle length from 12 to 24 months. Different fuel management strategies with 12, 18 and 24 month cycles are described. Economic analyses are performed to illustrate the low uranium consumption and the high fuel cycle performance compared with the fuel managements implemented in most current traditional PWR reactors.

scholarly journals MAPPING OF SODIUM VOID EFFECT AND DOPPLER CONSTANT IN ESFR-SMART CORE WITH MONTE CARLO CODE SERPENT AND DETERMINISTIC CODE ERANOS

2021 ◽  
Vol 247 ◽  
pp. 13004
Author(s):  
Jiri Krepel ◽  
Valeria Raffuzzi
Keyword(s):  
Monte Carlo ◽  
Inner Core ◽  
Fuel Cycle ◽  
Cycle Performance ◽  
Monte Carlo Code ◽  
Stochastic Noise ◽  
Sodium Fast Reactor ◽  
The Monte Carlo Method ◽  
Void Effect ◽  
Gen Iv

The Sodium Fast Reactor is one of the most technologically developed Gen-IV reactors, which can close the nuclear fuel cycle. Its criticality safety directly depends on the sodium void effect and Doppler constant. Hence the knowledge of their local distribution is important. These coefficients can be mapped by deterministic or Monte Carlo codes, where the latter provide higher modeling accuracy, but are also strongly computer demanding and subject to stochastic noise issues. In this study, the void effect and Doppler constant have been enumerated for the ESFR core by Serpent2 and ERANOS2 codes, preserving a six-batch operation scheme. The Serpent code was coupled to the Python script BBP to simulate batch-wise operation in a radially infinite inner core configuration; the ERANOS code was applied to the whole core geometry and the batch-wise operation was simulated by the EQL3D routine. Sodium void effect and Doppler constant spatial maps with different levels of refinement were produced, as well as the time evolution of the integral coefficients during the transition from initial cycle to equilibrium cycle. Both codes indicate deterioration of these coefficients during the transition. The equilibrium cycle performance of the inner core zone from the ERANOS calculation was compared with Serpent results and they showed reasonable agreement. For very fine mapping, the Monte Carlo method employed was computationally very demanding and the enumerated effect was lower than the stochastic noise. In general, the Serpent model practically excludes modeling assumptions and produces reliable results for reasonably sized maps, which can be combined if needed with the high spatial resolution results obtained by ERANOS simulations.

scholarly journals Reactor and fuel cycle performance of light water reactor fuel with 235U enrichments above 5%

2020 ◽  
Vol 142 ◽  
pp. 107423 ◽  
Author(s):  
Joseph R. Burns ◽  
Richard Hernandez ◽  
Kurt A. Terrani ◽  
Andrew T. Nelson ◽  
Nicholas R. Brown
Keyword(s):  
Fuel Cycle ◽  
Reactor Fuel ◽  
Light Water Reactor ◽  
Cycle Performance ◽  
Light Water ◽  
Water Reactor
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