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Montemaggi, Francesca
Document Type
:
Latin Dissertation
Language of Document
:
English
Record Number
:
1052039
Doc. No
:
TL51156
Main Entry
:
Zampella, Cody S.
Title & Author
:
Experimental Determination of the Thermal Accommodation Coefficient for Helium on a Stainless Steel Surface Using a Concentric Cylinders Apparatus\ Zampella, Cody S.Hadj-Nacer, Mustafa
College
:
University of Nevada, Reno
Date
:
2019
Degree
:
M.S.
student score
:
2019
Note
:
78 p.
Abstract
:
Vacuum drying of nuclear fuel canisters may cause the temperature of fuel assemblies to considerably increase due to the effect of gas rarefaction at low pressures. This effect may induce a temperature-jump at the gas-solid interfaces. It is important to predict the temperature-jump at these interfaces to accurately estimate the maximum temperature of the fuel assemblies during vacuum drying. The objective of this work is to set up a concentric cylinder experimental apparatus that can acquire data to benchmark rarefied gas heat transfer simulations and determine the thermal accommodation coefficient at the interface between stainless-steel surfaces and helium gas. The thermal accommodation coefficient is used to characterize the temperature-jump at the interface, and is determined by measuring the temperature difference and heat flux across a 2-mm gap between the concentric cylinders that contains rarefied helium and compare the results to analytical calculations in the slip rarefaction regime.
Descriptor
:
Fluid mechanics
:
Mechanical engineering
:
Nuclear engineering
:
Packaging
Added Entry
:
Hadj-Nacer, Mustafa
Added Entry
:
University of Nevada, Reno
https://lib.clisel.com/site/catalogue/895495
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TLets585315_453280.pdf
TLets585315.pdf
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