Abstract

The accuracy of thermophysical calculation of heat-liberatlng piles (HLP) of fast reactors is determined to a considerable extent by the accuracy of the initial calculational model of the fleld-element bundle and also by,taking correct account of all the factors influencing the formation of a temperature field in the bundle. The calculation is usually conducted for nominal parameters of the fuel elements and the HLP, under the assumption of a regular arrangement of fuel elements at the points of a regular triangular grid. For this model, the distribution of the heat-carrier flow rate over the individual channels, the heating of the heat carrier in the most stressed channels, and the corresponding temperature of the fuel-element casing are calculated for this model.

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