MATRIX EXPONENTIAL METHODS FOR PARALLEL COMPUTING OF ISOTOPIC DEPLETION AND SPECIES TRANSPORT FOR MOLTEN SALT REACTOR ANALYSIS

Matrix exponential methods have long been utilized for isotopic depletion in nuclear fuel calculations. In this paper we discuss the development of such methods in addition to species transport for liquid fueled molten salt reactors (MSRs). Conventional nuclear reactors work with fixed fuel assembli...

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Bibliographic Details
Published in:EPJ Web of conferences Vol. 247; p. 6047
Main Authors: Taylor, Zack, Collins, Benjamin, Maldonado, Ivan
Format: Journal Article
Language:English
Published: EDP Sciences 01.01.2021
Subjects:
matrix exponential
msr
species transport
ISSN:2100-014X, 2100-014X
Online Access:Get full text
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Summary:Matrix exponential methods have long been utilized for isotopic depletion in nuclear fuel calculations. In this paper we discuss the development of such methods in addition to species transport for liquid fueled molten salt reactors (MSRs). Conventional nuclear reactors work with fixed fuel assemblies in which fission products and fissile material do not transport throughout the core. Liquid fueled molten salt reactors work in a much different way, allowing for material to transport throughout the primary reactor loop. Because of this, fission product transport must be taken into account. The set of partial differential equations that apply are discretized into systems of first order ordinary differential equations (ODEs). The exact solution to the set of ODEs is herein being estimated using the matrix exponential method known as the Chebychev Rational Approximation Method (CRAM).
ISSN:2100-014X
2100-014X
DOI:10.1051/epjconf/202124706047