Evaluating 10 MWt Pebble Bed Reactor with Different Nuclear Data Libraries and Monte Carlo-based code OpenMC
Kharisma A.D. Rahmany(a), Dwi Irwanto(a,b,c*), Syaiful Bakhri(d),

a)Department of physics, Faculty of Mathematics and Natural Science, Bandung Institute of Technology, Jl. Ganesa No.10, Lb.Siliwangi, Coblong District, Bandung City, West Java 40132,Indonesia
b)Department of Nuclear Science and Engineering, Faculty of Mathematics and Natural Science, Bandung Institute of Technology, Jl. Ganesa No.10, Lb.Siliwangi, Coblong District, Bandung City, West Java 40132,Indonesia
c)Nuclear Physics and Biophysics Research Group, Department of Physics, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Jl. Ganesa No.10, Lb.Siliwangi, Coblong District, Bandung City, West Java 40132, Indonesia
d) Research Center for Nuclear Material and Radioactive Waste Technology (PRTBNLR), Research Organization for Nuclear Energy, National Research and Innovation Agency (BRIN), South Tangerang 15314, Indonesia
dirwanto[at]itb.ac.id

Abstract

HTGR, as a gas-cooled VHTR reactor, is one of the reactors that has been widely researched and developed. It is even considered to have mature technology. Based on the fuel, HTGR has a pebble bed type where this system could perform online refuelling. This study aims to determine the neutronic aspects of the 10 MWt Pebble Bed Reactor, which is based on HTR-10 design, with different nuclear data libraries. The analysis was conducted by reviewing the simulation results of the effective multiplication with JENDFL 3.3, JENDL 5.0, ENDF/B-VII.I, and ENDF/B-VIII.0 nuclear data. The simulation uses the Monte Carlo code, OpenMC, by simulating the entire reactor in the initial criticality state. This study investigates how different nuclear data impact the effective multiplication factor, with a detailed analysis focusing on neutronic parameters. The findings aim to offer a more comprehensive understanding of the development of the Pebble Bed reactor, contributing to advancing nuclear reactor design and safety.

Keywords: Pebble Bed Reactor, Nuclear Data Library, Effective Multiplication Factor, Monte Carlo Method

Topic: Innovative Nuclear Energy Systems