Determination of Thermal Accommodation Coefficients of Inert Gases on a Surface of Vitreous UO2at ~35°C
- 1 October 1982
- journal article
- research article
- Published by Taylor & Francis in Nuclear Technology
- Vol. 59 (1) , 63-69
- https://doi.org/10.13182/nt82-a33052
Abstract
Estimation of gap conductance in nuclear reactor fuel rods requires values for thermal accommodation coefficients of several gases on Zircaloy, uranium-dioxide, stainless steel, and other surfaces. These values for UO2 have now been obtained by observing cooling rates of a UO2 sphere suspended in the several gases in a manner similar to the authors’ previous work on Zircaloy-2. These measurements are on so-called “engineering” surfaces, and no special attempt other than mild baking under high vacuum pumping was used to clean the surfaces.Keywords
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