Aqueous Solution Vessel Thermal Model Development II

Abstract

VolAve Density, Fuel (kg/m 3) Vol-Ave Thermal Expansion Coefficient (K-1) Min Density, Fuel (kg/m 3) Max Density, Fuel (kg/m 3)

Development of Multi-physics (Multiphase CFD + MCNP) simulation for generic solution vessel power calculation

“…Inevitably, the coupled calculation between MCNP and MCFD is required for system level phenomena such as saturated steady state power and associated overall heat transfer coefficient. The coupling methodology for the current application builds on the method described in the associated research report [12].The calculation steps are summarized below with a logical diagram of the coupling procedure in Figure 8.…”

“…Any gains in simulation fidelity with a more sophisticated turbulence model such as Reynolds Stress Model (RSM) or Large Eddy Simulation (LES) are not expected. The multiphase interaction models listed above for the current application have been evaluated by performing a thorough sensitivity study documented in a previous report [11].…”