Effects of Different Types of Void Volumes on the Radial Temperature Distribution of Fuel Pins

The porosity dependence of the thermal conductivity for nuclear fuels

“…Frequently this several contributions in this journal considering equation is also attributed to Eucken 2,[4][5][6]10), how the thermal conductivity of U0 2, (UPU)02, owing to an erroneous quotation by Kingery 9). UN and (UTh)02 depends on porosity 1-6).…”

Thermal conductivity degradation analyses of LWR MOX fuel by the quasi-two phase material model

“…There are several analytical equation models for the thermal conductivity of the two phase material [17][18][19][20]. Kaempf equation [19] and Schulz equation [20] are taking into account the shape effect of the dispersed phase, and Bakker et al [21] examined the Schulz model to the irradiated fuel thermal conductivity and proved the good approximation for the correction of the dispersed porosity in the fuel matrix.…”

“…Kaempf equation [19] and Schulz equation [20] are taking into account the shape effect of the dispersed phase, and Bakker et al [21] examined the Schulz model to the irradiated fuel thermal conductivity and proved the good approximation for the correction of the dispersed porosity in the fuel matrix. Therefore, we applied Schulz model to our calculation for the thermal conductivity of the quasi-two phase MOX fuel.…”

FUEL PERFORMANCE CODE COSMOS FOR ANALYSIS OF LWR UO2AND MOX FUEL

“…The thermal conductivity recommended by Halden [7] was adopted for UO2 fuel, whereas a general thermal conductivity model applicable for a two-phase material was developed for MOX fuel [8].…”