Comparison of Modeling Options for Delayed Neutron Precursor Movement in a Molten Salt Reactor

摘要

We compared models based on the constant flux shape assumption, but using different approaches to take into account the movement of delayed neutron precursors. The models are applied to the ULOF transient for MOSART. The results show that the relative power, average temperature of fuel salt and reactivity show similar behavior for the case. Further research will be conducted to understand these models deeply, also for other transients and MSR models.