A Comparison of Deterministic and Monte Carlo Depletion Methods for HTGR Fuel Elements

M. DeHart, Jaakko Leppänen

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

Two independent methods using both deterministic and Monte Carlo methods are used to perform depletion calculations for a set of simple HTGR-type configurations, and are found to be in excellent agreement. The explicit representation of randomly dispersed particles used within a continuous energy Serpent solution represents the best estimate simulation of fuel particle interactions. The DH treatment in TRITON allows simulation of grain-to-grain effects without requiring the detailed representation of each individual grain, and is found to be in very close agreement with Serpent results. In absence of qualified experimental data for spent fuel samples burned in a prototypic environment, this very close agreement of completely independent methods and data provides a great deal of confidence in the capabilities of both methods to represent the physics of HTGR fuel depletion. Additional submissions of results for this benchmark from other organizations are expected, which will provide an even greater variety of methods and data for comparison. Compilation and comparison of results should provide considerable insight into strengths and limitations of various methods and data for HTGR analysis.
Original languageEnglish
Pages (from-to)778-781
Number of pages4
JournalTransactions of the American Nuclear Society
Volume101
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed

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high temperature gas cooled reactors
nuclear fuel elements
depletion
spent fuels
particle interactions
Monte Carlo method
confidence
simulation
physics
estimates
configurations
energy

Cite this

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A Comparison of Deterministic and Monte Carlo Depletion Methods for HTGR Fuel Elements. / DeHart, M.; Leppänen, Jaakko.

In: Transactions of the American Nuclear Society, Vol. 101, 2009, p. 778-781.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - A Comparison of Deterministic and Monte Carlo Depletion Methods for HTGR Fuel Elements

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AB - Two independent methods using both deterministic and Monte Carlo methods are used to perform depletion calculations for a set of simple HTGR-type configurations, and are found to be in excellent agreement. The explicit representation of randomly dispersed particles used within a continuous energy Serpent solution represents the best estimate simulation of fuel particle interactions. The DH treatment in TRITON allows simulation of grain-to-grain effects without requiring the detailed representation of each individual grain, and is found to be in very close agreement with Serpent results. In absence of qualified experimental data for spent fuel samples burned in a prototypic environment, this very close agreement of completely independent methods and data provides a great deal of confidence in the capabilities of both methods to represent the physics of HTGR fuel depletion. Additional submissions of results for this benchmark from other organizations are expected, which will provide an even greater variety of methods and data for comparison. Compilation and comparison of results should provide considerable insight into strengths and limitations of various methods and data for HTGR analysis.

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