ESTIMATIONS OF HEAT CAPACITIES FOR ACTINIDE DIOXIDE: UO2, NpO2, ThO2, AND PuO2


ESER E., Koc H., Gokbulut M., Gursoy G.

NUCLEAR ENGINEERING AND TECHNOLOGY, vol.46, no.6, pp.863-868, 2014 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 46 Issue: 6
  • Publication Date: 2014
  • Doi Number: 10.5516/net.07.2014.024
  • Journal Name: NUCLEAR ENGINEERING AND TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.863-868
  • Keywords: Nuclear Fuels, Minor Actinide, Temperature Dependence, Uranium Dioxide, Debye Functions, RAY DEBYE TEMPERATURE, THERMAL-EXPANSION, THERMOPHYSICAL PROPERTIES, MOLECULAR-DYNAMICS, THERMODYNAMIC PROPERTIES, GRUNEISEN CONSTANT, THORIUM-DIOXIDE, TRANSMUTATION, CONDUCTIVITY, INTEGER

Abstract

The evaluation of thermal properties of actinide oxide fuels is a problem of high importance for the development of new generation reactors. In the present study, an expression obtained for n-dimensional Debye functions is used to derive a simple analytical expression for the specific heat capacity of nuclear fuels. To test the validity and reliability of this expression, the analytical expression is applied to UO2, NpO2, ThO2, and PuO2. It is seen that the formula was in agreement with the experimental and theoretical results reported in the literature.