Comparative Analysis of Molten Salt Reactor (MSR) Using FLiBe, FLiNaK, and FNaBe with Power Output of 100 MWe Cici Wulandari(a,b*), Sidik Permana(a,b), Dwi Irwanto(a,b), Abdul Waris(a,b)
a)Nuclear Physics & Biophysics Research Division, Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi, Bandung, Indonesia
b)Department of Nuclear Science and Engineering, Faculty of Mathematics and Natural Sciences, Institut Teknologi, Bandung, Indonesia
*cici.wulandari01[at]itb.ac.id
Abstract
This study presents the neutronic design and analysis of a Molten Salt Reactor (MSR) with an electrical output of 100 MWe, specifically tailored for deployment in a low populated regions such as West Kalimantan or small islands where electricity grid connectivity is unreliable. The selection of a 100 MWe power level aims to meet the energy needs of these areas while minimizing the infrastructural and environmental impacts. The comparative analysis was conducted on various molten salt types, including FLiBe (LiF-BeF2), FLiNaK (LiF-NaF-KF), and FNaBe (NaF-BeF2), to determine the most efficient salt for reactor operations. Neutronic calculations were carried out using the SRAC (Standard Reactor Analysis Code) program, employing the PIJ (cell calculation module) and CITATION (core calculation module) to evaluate reactor performance. The results demonstrate that FLiBe molten salt offers significant advantages in terms of neutron economy, contributing to higher reactor efficiency and improved fuel utilization. These findings suggest that FLiBe is a superior choice for MSRs in the regions, providing a reliable and sustainable energy.
