Back to Search
Start Over
Temperature Jump Measurement at Stainless Steel and Helium Interface: Application to Used Nuclear Fuel Vacuum Drying Process
- Source :
- Volume 7: Operations, Applications, and Components.
- Publication Year :
- 2018
- Publisher :
- American Society of Mechanical Engineers, 2018.
-
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 setup a concentric cylinders experimental apparatus that can acquire data to benchmark rarefied gas heat transfer simulations, and determine the temperature-jump coefficient at the interface between stainless steel surface and helium gas. The temperature-jump 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.
Details
- Database :
- OpenAIRE
- Journal :
- Volume 7: Operations, Applications, and Components
- Accession number :
- edsair.doi...........a885405e90d8cbdd66aba80c746d3c3a