Thermal conductivity of perspective fuel based on uranium nitride

2016 ◽  
Vol 87 ◽  
pp. 799-802 ◽  
Author(s):  
E.S. Solntceva ◽  
M.L. Taubin ◽  
V.I. Vybyvanets ◽  
I.E. Galyov ◽  
V.G. Baranov ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Uranium Nitride

Thermal conductivity correlation for uranium nitride fuel between 10 and 1923 K

1988 ◽  
Vol 151 (3) ◽  
pp. 318-326 ◽  
Author(s):  
Steven B. Ross ◽  
Mohamed S. El-Genk ◽  
R.Bruce Matthews
Keyword(s):  
Thermal Conductivity ◽  
Nitride Fuel ◽  
Uranium Nitride

Study on specific heat capacity and thermal conductivity of uranium nitride

Kerntechnik ◽  
2021 ◽  
Vol 86 (6) ◽  
pp. 400-403
Author(s):  
M. Gokbulut ◽  
G. Gursoy ◽  
Ş. Aşcı ◽  
E. Eser
Keyword(s):  
Thermal Conductivity ◽  
Heat Capacity ◽  
Specific Heat ◽  
Specific Heat Capacity ◽  
Nuclear Material ◽  
Nuclear Materials ◽  
Wide Range ◽  
Calculation Results ◽  
Uranium Nitride ◽  
Einstein Approximation

Abstract In this study, we have proposed an analytical method for calculating the specific heat capacity of uranium nitride nuclear material. The specific heat capacity results have obtained by the use of the Debye-Einstein approximation. The thermal conductivity of nuclear material has been obtained by using the experimental data of thermal diffusivity and the calculation results of specific heat capacity. This method shows that our results are satisfactory for the wide range temperature variations. The proposed approach can be easily applied to determine the thermodynamic properties of the other nuclear materials.

scholarly journals Thermal Conductivity of Uranium Nitride and Carbide

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
B. Szpunar ◽  
J. A. Szpunar
Keyword(s):  
Thermal Conductivity ◽  
Electronic Structure ◽  
Alternative Fuels ◽  
Magnetic Moments ◽  
Quantitative Agreement ◽  
Uranium Carbide ◽  
Antiferromagnetic Ordering ◽  
Electronic Thermal Conductivity ◽  
Uranium Nitride ◽  
Quantum Espresso

We investigate the electronic thermal conductivity of alternative fuels like uranium nitride and uranium carbide. We evaluate the electronic contribution to the thermal conductivity, by combining first-principles quantum-mechanical calculations with semiclassical correlations. The electronic structure of UN and UC was calculated using Quantum Espresso code. The spin polarized calculations were performed for a ferromagnetic and antiferromagnetic ordering of magnetic moments on uranium lattice and magnetic moment in UC was lower than in UN due to stronger hybridization between 2p electrons of carbon and 5f electrons of uranium. The nonmagnetic electronic structure calculations were used as an input to BolzTrap code that was used to evaluate the electronic thermal conductivity. It is predicted that the thermal conductivity should increase with the temperature increase, but to get a quantitative agreement with the experiment at higher temperatures the interaction of electrons with phonons (and electron-electron scattering) needs to be included.

Pressure induced renormalization of thermal conductivity of Uranium Nitride: A first principles study

2019 ◽  
Vol 572 ◽  
pp. 230-237
Author(s):  
Maryam Rouzbehi ◽  
Ali Kazempour ◽  
Aliasghar Shokri ◽  
Leila Gholamzadeh ◽  
Fatemeh Golami
Keyword(s):  
Thermal Conductivity ◽  
First Principles ◽  
First Principles Study ◽  
Uranium Nitride

Low-Temperature Thermal Conductivity of Uranium Nitride

1969 ◽  
Vol 52 (9) ◽  
pp. 514-514 ◽  
Author(s):  
LEE G. RADOSEVICH ◽  
WENDELL S. WILLIAMS
Keyword(s):  
Thermal Conductivity ◽  
Low Temperature ◽  
Uranium Nitride

Soliton microdynamics and thermal conductivity of uranium nitride at high temperatures

2011 ◽  
Vol 53 (9) ◽  
pp. 1963-1974 ◽  
Author(s):  
O. A. Dubovsky ◽  
A. V. Orlov ◽  
V. A. Semenov
Keyword(s):  
Thermal Conductivity ◽  
High Temperatures ◽  
Uranium Nitride
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