Some approaches to investigation of the influence of variable energy release on heat transfer and temperature fields of fuel elements of nuclear reactors

摘要

Different methods for estimating the effect of energy release reduction in the second half of the active core on the temperature field of fuel elements are considered: analytical solution of the problem, recalculation of the temperature field obtained at constant energy release for variable energy release, and so on. An enhanced role of this effect for peripheral fuel elements of fuel assemblies of fast reactors is noted.