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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
Affiliation:
katayama@ms.see.eng.osaka-u.ac.jp, 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:
adachi@ms.see.eng.osaka-u.ac.jp, 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:
kurosaki@see.eng.osaka-u.ac.jp, 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:
uno@see.eng.osaka-u.ac.jp, 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:
miwa.shuhei@jaea.go.jp, Japan Atomic Energy Agency, Narita-cho 4002, Oarai-machi, Higashiibaraki-gun, Ibaraki, 311-1393, Japan
Masahiko Osaka
Affiliation:
ohsaka.masahiko@jaea.go.jp, Japan Atomic Energy Agency, Narita-cho 4002, Oarai-machi, Higashiibaraki-gun, Ibaraki, 311-1393, Japan
Kenya Tanaka
Affiliation:
tanaka.kenya@jaea.go.jp, Japan Atomic Energy Agency, Narita-cho 4002, Oarai-machi, Higashiibaraki-gun, Ibaraki, 311-1393, Japan
Shinsuke Yamanaka
Affiliation:
yamanaka@see.eng.osaka-u.ac.jp, 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.

Type
Research Article
Copyright
Copyright © Materials Research Society 2008

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