MACSIS: A metallic fuel performance analysis code for Simulating IN-reactor behavior under Steady-state conditions

Woan Hwang; Cheol Nam; Thak Sang Byun; Young Cheol Kim

doi:10.13182/NT98-A2887

MACSIS: A metallic fuel performance analysis code for Simulating IN-reactor behavior under Steady-state conditions

Woan Hwang, Cheol Nam, Thak Sang Byun, Young Cheol Kim

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

Computational models for analyzing in-reactor behavior of metallic fuel pins in liquid-metal reactors under steady-state conditions are developed and implemented in the Metal fuel performance Analysis (computer) Code for Simulating the In-reactor behavior under Steady-state conditions (MACSIS). Sodium logging and constituent redistribution effects are considered in calculating the temperature profile. The model for the radial redistribution of the fuel constituent is based on the thermotransport theory. The fission gas release model takes multibubble size distribution into account to characterize the lenticular bubble shape and the saturation condition on the grain boundary. Finally, the clad strains are calculated from the amount of fission gas released and interface pressure. Sample calculations are performed to verify each model. The results show that in general, the predictions of MACSIS agree well with the available irradiation data.

Original language	English
Pages (from-to)	130-141
Number of pages	12
Journal	Nuclear Technology
Volume	123
Issue number	2
DOIs	https://doi.org/10.13182/NT98-A2887
State	Published - Aug 1998
Externally published	Yes

Keywords

MACSIS
Metallic fuel
Modeling

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10.13182/NT98-A2887

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title = "MACSIS: A metallic fuel performance analysis code for Simulating IN-reactor behavior under Steady-state conditions",

abstract = "Computational models for analyzing in-reactor behavior of metallic fuel pins in liquid-metal reactors under steady-state conditions are developed and implemented in the Metal fuel performance Analysis (computer) Code for Simulating the In-reactor behavior under Steady-state conditions (MACSIS). Sodium logging and constituent redistribution effects are considered in calculating the temperature profile. The model for the radial redistribution of the fuel constituent is based on the thermotransport theory. The fission gas release model takes multibubble size distribution into account to characterize the lenticular bubble shape and the saturation condition on the grain boundary. Finally, the clad strains are calculated from the amount of fission gas released and interface pressure. Sample calculations are performed to verify each model. The results show that in general, the predictions of MACSIS agree well with the available irradiation data.",

keywords = "MACSIS, Metallic fuel, Modeling",

author = "Woan Hwang and Cheol Nam and Byun, {Thak Sang} and Kim, {Young Cheol}",

year = "1998",

month = aug,

doi = "10.13182/NT98-A2887",

language = "English",

volume = "123",

pages = "130--141",

journal = "Nuclear Technology",

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publisher = "Taylor and Francis Group",

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T2 - A metallic fuel performance analysis code for Simulating IN-reactor behavior under Steady-state conditions

AU - Hwang, Woan

AU - Nam, Cheol

AU - Byun, Thak Sang

AU - Kim, Young Cheol

PY - 1998/8

Y1 - 1998/8

N2 - Computational models for analyzing in-reactor behavior of metallic fuel pins in liquid-metal reactors under steady-state conditions are developed and implemented in the Metal fuel performance Analysis (computer) Code for Simulating the In-reactor behavior under Steady-state conditions (MACSIS). Sodium logging and constituent redistribution effects are considered in calculating the temperature profile. The model for the radial redistribution of the fuel constituent is based on the thermotransport theory. The fission gas release model takes multibubble size distribution into account to characterize the lenticular bubble shape and the saturation condition on the grain boundary. Finally, the clad strains are calculated from the amount of fission gas released and interface pressure. Sample calculations are performed to verify each model. The results show that in general, the predictions of MACSIS agree well with the available irradiation data.

AB - Computational models for analyzing in-reactor behavior of metallic fuel pins in liquid-metal reactors under steady-state conditions are developed and implemented in the Metal fuel performance Analysis (computer) Code for Simulating the In-reactor behavior under Steady-state conditions (MACSIS). Sodium logging and constituent redistribution effects are considered in calculating the temperature profile. The model for the radial redistribution of the fuel constituent is based on the thermotransport theory. The fission gas release model takes multibubble size distribution into account to characterize the lenticular bubble shape and the saturation condition on the grain boundary. Finally, the clad strains are calculated from the amount of fission gas released and interface pressure. Sample calculations are performed to verify each model. The results show that in general, the predictions of MACSIS agree well with the available irradiation data.

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KW - Modeling

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MACSIS: A metallic fuel performance analysis code for Simulating IN-reactor behavior under Steady-state conditions

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