An equation of state for xenon/krypton mixtures confined in the nuclear fuels

Andrei Jelea (1)

1 IRSN/PSN-RES/SEMIA/LPTM - Laboratoire de Physique et de Thermomécanique des Matériaux

In the present paper, one proposes an equation of state allowing to reasonably describe the behavior of the xenon/krypton mixtures, in any proportion, confined in the form of nanoscale bubbles in the UO2 and MOX nuclear fuels. The temperature range covered by this equation lies between the room temperature and the fuel melting point. The equation of state, which was built based on molecular dynamics results obtained on a large density-composition-temperature range, could be easily implemented in the codes simulating the nuclear fuel rod behavior in normal and accident conditions.

Domaines: Physique [physics]

Andrei Jelea. An equation of state for xenon/krypton mixtures confined in the nuclear fuels. Journal of Nuclear Materials, 2020, 530, pp.151952. ⟨10.1016/j.jnucmat.2019.151952⟩. ⟨hal-02454919⟩