The technique for calculating a fuel element with bilateral heat generation taking into account axial heat fluxes is described. Some results of numerical investigations of fuel element temperature behavior under different coolant flow schemes and when varying operating parameters, fuel element thickness and its thermal conductivity coefficient are presented. It is demonstrated that the effect of axial heat fluxes on heat removal zone redistribution and fuel element temperature conditions respectively enchances with increasing the fuel element thickness and on thermal conductivity coefficient. 5 refs.; 11 figs.; 1 tab.