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Modeling and Simulation of Thermophysical Properties of Minor Actinides-Containing Oxide Fuels

Published online by Cambridge University Press:  01 February 2011

Masahito Katayama ,
Jun Adachi ,
Ken Kurosaki ,
Masayoshi Uno ,
Shuhei Miwa ,
Masahiko Osaka ,
Kenya Tanaka  and
Shinsuke Yamanaka
Masahito Katayama
Affiliation:
[email protected], Graduate School of Engineering Osaka University, Division of Sustainable Energy and Environmental Engineering, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan, +81-6-6879-7905, +81-6-6879-7889
Jun Adachi
Affiliation:
[email protected], Osaka University, Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
Ken Kurosaki
Affiliation:
[email protected], Osaka University, Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
Masayoshi Uno
Affiliation:
[email protected], Osaka University, Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
Shuhei Miwa
Affiliation:
[email protected], Japan Atomic Energy Agency, Narita-cho 4002, Oarai-machi, Higashiibaraki-gun, Ibaraki, 311-1393, Japan
Masahiko Osaka
Affiliation:
[email protected], Japan Atomic Energy Agency, Narita-cho 4002, Oarai-machi, Higashiibaraki-gun, Ibaraki, 311-1393, Japan
Kenya Tanaka
Affiliation:
[email protected], Japan Atomic Energy Agency, Narita-cho 4002, Oarai-machi, Higashiibaraki-gun, Ibaraki, 311-1393, Japan
Shinsuke Yamanaka
Affiliation:
[email protected], Osaka University, Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
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Abstract

The molecular dynamics (MD) calculation was performed for minor actinide (MA: Np and Am)-containing mixed oxide (MOX) fuels, U0.7-xPu0.3MAxO2, in the temperature range from 300 to around 2500 K to evaluate the thermal expansion, heat capacity, and thermal conductivity. The MD results showed that the calculated heat capacity and thermal conductivity were similar in all the composition ranges, indicating that MA scarcely affected the thermal properties of the MOX fuel in the perfect crystal system.

Keywords

simulationthermal conductivityoxide
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1043: Symposium T – Materials Innovations for Next-Generation Nuclear Energy , 2007 , 1043-T09-06
Copyright
Copyright © Materials Research Society 2008

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