THERMAL AND THERMOPHYSICAL PROPERTIES OF THE RADIOACTIVE GRAPHITE–INERT GAS SYSTEM IN HEATING. COMPUTER EXPERIMENT

Consideration has been given to the capabilities of the TERRA software system for modeling thermodynamically the heating of a radioactive graphite–inert gas system in a nuclear reactor. As a result of such modeling, the authors have determined processes occurring in the reactor with the involvement of Eu, Pu, and U actinoids during the heating of the radioactive graphite–argon system at pressures of 10⁵ and 10⁶ Pa, and also equilibrium constants of chemical reactions and the infl uence of pressure on them. The thermophysical properties of the system have been studied, and the infl uence of pressure on its specifi c volume, the heat capacity, and the molar mass of a gas phase and the weight fraction of a condensed phase has been established.
   
Author:  N. M. Barbin, T. S. Kolbin, D. I. Terent′ev, S. G. Alekseev, and I. A. Kaibichev
Keywords:  thermodynamic modeling, equilibrium constants, radioactive graphite, radionuclides, heating
Page:  1079