科技报告详细信息
Evaluation of Candidate In-Pile Thermal Conductivity Techniques
Fox, B. ; Ban, H. ; Daw, J. ; Condie, K. ; Knudson, D. ; Rempe, J.
Idaho National Laboratory
关键词: In-Pile;    46 Instrumentation Related To Nuclear Science And Technology;    Testing;    Capacity;    Irradiation;   
DOI  :  10.2172/961919
RP-ID  :  INL/EXT-09-16039
RP-ID  :  DE-AC07-99ID-13727
RP-ID  :  961919
美国|英语
来源: UNT Digital Library
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【 摘 要 】

Thermophysical properties of materials must be known for proper design, test, and application of new fuels and structural properties in nuclear reactors. In the case of nuclear fuels during irradiation, the physical structure and chemical composition change as a function of time and position within the rod. Typically, thermal conductivity changes, as well as other thermophysical properties being evaluated during irradiation in a materials and test reactor, are measured out-of-pile in “hot-cells.” Repeatedly removing samples from a test reactor to make out-of-pile measurements is expensive, has the potential to disturb phenomena of interest, and only provide understanding of the sample's end state at the time each measurement is made. There are also limited thermophysical property data for advanced fuels. Such data are needed for the development of next generation reactors and advanced fuels for existing nuclear plants. Having the capacity to effectively and quickly characterize fuels and material properties during irradiation has the potential to improve the fidelity of nuclear fuel data and reduce irradiation testing costs.

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