Determination of Thermal Accommodation Coefficients of Helium, Argon, and Xenon on a Surface of Zircaloy-2 at About 25°C
- 13 May 1982
- journal article
- research article
- Published by Taylor & Francis in Nuclear Technology
- Vol. 57 (2) , 213-219
- https://doi.org/10.13182/nt82-a26283
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 Zircaloy-2 have now been obtained by observing cooling rates of a Zircaloy sphere suspended in the several gases. These measurements are on so-called engineering surfaces, and no special attempt other than baking under high vacuum pumping was used to clean the surfaces. It is found, however, that if the recent kinetic theory results of Cercignani and Pagani on heat transfer from a sphere are used, then quite constant values for accommodation coefficients on a range of pressures are obtained.Keywords
This publication has 6 references indexed in Scilit:
- Gap Conductance and Temperature Transients in Modified Pulse Design ExperimentsNuclear Technology, 1982
- Thermal accommodation coefficients of inert gases on stainless steel and UO2Journal of Nuclear Materials, 1974
- Comparative Measurements of Tangential Momentum and Thermal Accommodations on Polished and on Roughened Steel SpheresPublished by Elsevier ,1974
- IAMBUS-1 — A digital computer code for the design, in-pile performance prediction and post-irradiation analysis of arbitrary fuel rodsNuclear Engineering and Design, 1974
- The Slip Problems for a Simple GasZeitschrift für Naturforschung A, 1971
- Kinetic-Theory Description of Conductive Heat Transfer from a Fine WirePhysics of Fluids, 1962