FIELD: power industry.
SUBSTANCE: element (1) has composite plate structure and contains grid (8) with cells (8) preferably in the form of honey combs, in each of which nuclear fuel pill (10) is located. In each cell (8) there is radial and axial gap for compensation of differences in swelling between fissionable and structural materials providing operation of plate element (1).
EFFECT: increasing volume fraction of fuel in matrix, providing mechanical strength of each cell in relation to internal pressure of gaseous fission products released with fuel, preventing strong interactions between fuel and structures of the cell, removing the generated energy in direction of heat carrier with good transverse conductance of the plate to control temperatures in core and voltages appearing in structures.
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RU2170956C1 |
