TY - GEN
T1 - The relation between nuclear reactor core size and xenon-induced spatial oscillations
AU - Kastin, Nir
AU - Kolin, Assaf
AU - Meron, Ehud
AU - Kinast, Shai
N1 - Publisher Copyright:
© 2018 International Conference on Physics of Reactors, PHYSOR 2018: Reactor Physics Paving the Way Towards More Efficient Systems. All rights reserved.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - The relations between xenon-induced spatial oscillations and the size of a reactor core are analyzed. The study is based on linear stability analysis of steady-state solutions to small perturbations in time and space. We show that there exists a minimal core size in which spatial perturbations may rise. Moreover, this minimal size depends strongly on the reactor power, as well as on the neutron diffusion length, but is not sensitive to changes in the power feedback coefficient. The dependence of the minimal size on the reactor power is found to be separated into high and low flux ranges. The results may be used to analyze the susceptibility of large next-generation nuclear reactors to xenon instability.
AB - The relations between xenon-induced spatial oscillations and the size of a reactor core are analyzed. The study is based on linear stability analysis of steady-state solutions to small perturbations in time and space. We show that there exists a minimal core size in which spatial perturbations may rise. Moreover, this minimal size depends strongly on the reactor power, as well as on the neutron diffusion length, but is not sensitive to changes in the power feedback coefficient. The dependence of the minimal size on the reactor power is found to be separated into high and low flux ranges. The results may be used to analyze the susceptibility of large next-generation nuclear reactors to xenon instability.
KW - Linear stability analysis
KW - Reactor operation
KW - Spatial oscillations
KW - Xenon oscillations
UR - http://www.scopus.com/inward/record.url?scp=85065067873&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85065067873
T3 - International Conference on Physics of Reactors, PHYSOR 2018: Reactor Physics Paving the Way Towards More Efficient Systems
SP - 2784
EP - 2793
BT - International Conference on Physics of Reactors, PHYSOR 2018
PB - Sociedad Nuclear Mexicana, A.C.
T2 - 2018 International Conference on Physics of Reactors: Reactor Physics Paving the Way Towards More Efficient Systems, PHYSOR 2018
Y2 - 22 April 2018 through 26 April 2018
ER -