Investigative Study of Fuel Salt Drainage from Molten Salt Reactor (MSR) to Drain Tank Using Moving Particle Semi-Implicit (MPS) Method Dhiya Salma Salsabila (a), Fajri Prasetya (a*), Fabian Yoga Prastha (a), Tsania Eksa Angelina (a), Asril Pramutadi (b), Sidik Permana (b)
a) Master Program in Nuclear Science and Engineering Department, Faculty of Mathematics and Natural Science, Bandung Institute of Technology
Jalan Ganesha 10 Bandung 40132, Indonesia
*prasfajri[at]gmail.com
b) Nuclear Science and Engineering Department, Faculty of Mathematics and Natural Science, Bandung Institute of Technology
Jalan Ganesha 10 Bandung 40132, Indonesia
Abstract
This study investigates the dynamic behavior of fuel salt drainage within a molten salt reactor system, focusing on pressure distribution, velocity profiles, and volume clearance rates over time. Detailed analyses at discrete time points reveal distinct pressure patterns influenced by the density and viscosity of three different fuel salt compositions (A, B, C). Initial high pressures at 0.2 seconds are attributed to collisions as the fuel salt first interacts with pipe corners. Subsequent time intervals show varying pressure ranges, with fuel salt A consistently exhibiting elevated pressures in regions 2 and 3, indicative of its high viscosity and density characteristics. Velocity profiles highlight that fuel salt C has higher flow velocities, attributed to its lower viscosity, which significantly influences fluid dynamics. Additionally, volume clearance rates indicate faster reactor clearance for fuel salt C at 800K, owing to its lower density and consequent lower kinematic viscosity. These findings underscore the complex relationship between fuel salt composition, viscosity, and reactor system dynamics, which is crucial for optimizing reactor design and operational efficiency in molten salt reactor technology.
Keywords: MSR, MPS, Fuel Salt, Pressure, Velocity
Topic: Theoretical and Computational Nuclear Physics
