Thermal hydraulic stability analysis of supercritical water-cooled reactor under the effect of seismic-wave acceleration

摘要

The effect of seismic waves on the SCWR is investigated in this work. Only vertical motion has been considered in the current study to reduce complexity. A sinusoidal curve representing the vertical seismic acceleration has been used for the analysis. The axial power distribution, the sine wave's effects, and the degree of instability in the system's initial state, controlled by the ratio of power-to-flow at its core, will be investigated. The preliminary results are described in this paper using simpler models and substantial computed outcomes. The main goal of this research is to provide quantitative data that can be used to identify the critical effects of seismic waves on the SCWR system utilizing LPM. To achieve the goal, the short thermal-hydraulic in-house code is employed, which has been adjusted to account for external acceleration and gravity.