Theoretical calculation and analysis modeling for the effective thermal conductivity of Li4SiO4 pebble bed

The effective thermal conductivity of Li4SiO4 pebble bed is an important design parameter and must be known for the thermo-mechanical design of solid breeder blankets. The theoretical calculation and modeling analysis for the effective thermal conductivity of Li4SiO4 pebble bed are performed in this paper. The 2D and 3D theoretical equations for the thermal conductivity of Li4SiO4 pebble bed are given, moreover compared with the modeling results and other experimental data. The results show that the effective thermal conductivity of Li4SiO4 pebble bed can be preliminarily obtained by analysis modeling or theoretical calculation under the lack of experimental set-up at present.