TY - GEN

T1 - A simplified spatial model for BWR stability

AU - Berman, Yonatan

AU - Lederer, Yoav

AU - Meron, Ehud

PY - 2012/12/6

Y1 - 2012/12/6

N2 - A spatial reduced order model for the study of BWR stability, based on the phenomenological model of March-Leuba et al., is presented. As one dimensional spatial dependence of the neutron flux, fuel temperature and void fraction is introduced, it is possible to describe both global and regional oscillations of the reactor power. Both linear stability analysis and numerical analysis were applied in order to describe the parameters which govern the model stability. The results were found qualitatively similar to past results. Doppler reactivity feedback was found essential for the explanation of the different regions of the flow-power stability map.

AB - A spatial reduced order model for the study of BWR stability, based on the phenomenological model of March-Leuba et al., is presented. As one dimensional spatial dependence of the neutron flux, fuel temperature and void fraction is introduced, it is possible to describe both global and regional oscillations of the reactor power. Both linear stability analysis and numerical analysis were applied in order to describe the parameters which govern the model stability. The results were found qualitatively similar to past results. Doppler reactivity feedback was found essential for the explanation of the different regions of the flow-power stability map.

KW - BWR stability

KW - Reduced order models

KW - Stability analysis

UR - http://www.scopus.com/inward/record.url?scp=84870310526&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84870310526

SN - 9781622763894

T3 - International Conference on the Physics of Reactors 2012, PHYSOR 2012: Advances in Reactor Physics

SP - 1608

EP - 1619

BT - International Conference on the Physics of Reactors 2012, PHYSOR 2012

T2 - International Conference on the Physics of Reactors 2012: Advances in Reactor Physics, PHYSOR 2012

Y2 - 15 April 2012 through 20 April 2012

ER -