THERMAL-CONDUCTIVITY OF SIMFUEL

被引：56

作者：

LUCUTA, PG ^{[1
]}

MATZKE, H ^{[1
]}

VERRALL, RA ^{[1
]}

TASMAN, HA ^{[1
]}

机构：

[1] COMMISS EUROPEAN COMMUNITIES,JOINT RES CTR,EUROPEAN INST TRANSURANIUM ELEMENTS,W-7500 KARLSRUHE,GERMANY

来源：

JOURNAL OF NUCLEAR MATERIALS | 1992年 / 188卷

关键词：

D O I：

10.1016/0022-3115(92)90471-V

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thermal diffusivity and specific heat of SIMFUEL - simulated high-burnup UO2 fuel with an equivalent burnup of 3 and 8 at% - were measured between 300 and 1800 K, and the data were combined to obtain the thermal conductivities. The thermal conductivity of SIMFUEL provides a model for the intrinsic conductivity of high-burnup fuels (i.e. without gas bubbles). The results on conductivity of 3 and 8 at% burnup SIMFUEL were lower than those measured for UO2 by 29 and 45% at 300 K and by 6 and 15% at 1773 K. The reduction in thermal conductivity was approximately linear with burnup. The change in thermal conductivity is a possible explanation for the enhanced gas release observed from high-burnup fuel.

引用

页码：198 / 204

页数：7

共 28 条

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