A Simple Method of Calculating the Radial Temperature Distribution in a Mixed-Oxide Fuel Element

1972 ◽  
Vol 14 (2) ◽  
pp. 153-156 ◽  
Author(s):  
R. O. Meyer ◽  
B. J. Buescher
Keyword(s):  
Temperature Distribution ◽  
Fuel Element ◽  
Mixed Oxide ◽  
Oxide Fuel ◽  
Simple Method ◽  
Radial Temperature ◽  
Radial Temperature Distribution ◽  
Mixed Oxide Fuel

Study on the mechanism of diametral cladding strain and mixed-oxide fuel element breaching in slow-ramp extended overpower transients

2012 ◽  
Vol 429 (1-3) ◽  
pp. 149-158 ◽  
Author(s):  
Tomoyuki Uwaba ◽  
Seiichiro Maeda ◽  
Tomoyasu Mizuno ◽  
Melissa C. Teague
Keyword(s):  
Fuel Element ◽  
Mixed Oxide ◽  
Oxide Fuel ◽  
Mixed Oxide Fuel

Burn-Up Dependent Modelling of Fuel-To-Clad Gap Conductance and Temperature Predictions for Mixed-Oxide Fuel in the ESFR-SMART Core

2021 ◽  
Author(s):  
Jean H J Lavarenne ◽  
Evaldas Bubelis ◽  
Una Davies ◽  
Simone Gianfelici ◽  
Solène Gicquel ◽  
...  
Keyword(s):  
Temperature Distribution ◽  
Mixed Oxide ◽  
Oxide Fuel ◽  
Hydraulic Analysis ◽  
Fuel Temperature ◽  
Accurate Calculation ◽  
General Increase ◽  
Mixed Oxide Fuel ◽  
Thermal Hydraulic Analysis ◽  
Good Agreement

Abstract Accurate coupled neutronic-thermal-hydraulic analysis of SFRs requires an accurate calculation of the fuel-to-clad gap conductance. In this paper, the gap conductance of the ESFR-SMART MOX pins is investigated through modelling in seven independent fuel performance codes, to provide confidence in results and understand the uncertainties associated with the predictions. This paper presents a comparison of the conductance and predicted fuel temperature distribution between codes. The values produced from the codes are then combined to produce a best-estimate prediction of the gap conductance expressed as a function of nodal fuel rating and burn-up for all seven codes. A fit was applied to the data thus obtained. The spread between results is such that, to 95% confidence, conductance predictions may vary from the correlation by up to a factor of ~4. The gap conductance results show a general increase of conductance with fuel rating and burn-up, from 0.22 at 0 burn-up and 10 kW.m^(-1) to 0.45 at 0 burn-up and 50 kW.m^(-1) and to 1.00 W.?cm?^(-2).K^(-1) at 150 GWd.t^(-1) and 50 kW.m^(-1). Some spread between codes has been noted and appears to be consistent with the spread previously published. There is good agreement between codes at low burn-up for fuel temperature predictions. The spread between codes increases with burn-up due to multiple phenomena including JOG formation and clad swelling.

Weapons-Derived Mixed Oxide Fuel Test Irradiation Summary

2005 ◽  
Author(s):  
S. A. Hodge ◽  
R. N. Morris ◽  
L. J. Ott
Keyword(s):  
Mixed Oxide ◽  
Oxide Fuel ◽  
Mixed Oxide Fuel

scholarly journals A Concept Study on Advanced Radioisotope Solid Solutions and Mixed-Oxide Fuel Forms for Future Space Nuclear Power Systems

2021 ◽  
pp. 1-9
Author(s):  
Richard M. Ambrosi ◽  
Daniel P. Kramer ◽  
Emily Jane Watkinson ◽  
Ramy Mesalam ◽  
Alessandra Barco
Keyword(s):  
Power Systems ◽  
Solid Solutions ◽  
Mixed Oxide ◽  
Nuclear Power ◽  
Oxide Fuel ◽  
Concept Study ◽  
Mixed Oxide Fuel ◽  
Future Space ◽  
Space Nuclear Power
Sign in / Sign up

Export Citation Format

Share Document