Theoretical Calculation and Numerical Investigation for the Effective Thermal Conductivity of Packed Li₂TiO₃ Pebble Bed

Abstract:

Lithium titanate (Li₂TiO₃) in form of packed pebble bed is promising concept for breeder material in the fusion reactor blanket, and worldwide efforts have been dedicated to its R&D in the last two decade. Li₂TiO₃ pebble beds with the efforts of tritium breeding and thermal removing play a major role in the thermal performance of the fusion reactor blanket. Specifically, the effective thermal conductivity of Li₂TiO₃ is an important parameter for the design and thermal mechanical of fusion reactor blanket. The theoretical calculation and numerical simulation for the effective thermal conductivity of Li₂TiO₃ pebble bed are performed in this paper. The theoretical equations and modeling result for the thermal conductivity of Li₂TiO₃ pebble bed are given and compared with the experimental data. The results show that the effective thermal conductivity of Li₂TiO₃ pebble bed can be preliminarily obtained by numerical simulation and theoretical calculation.

• Periodical: Advanced Materials Research (Volumes 953-954)
• Pages: 627-630
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.953-954.627
• Online since: June 2014
• Authors: Hao Ran Cao*, Rong Hua Huang, Jun Heng Li
• Keywords: Effective Thermal Conductivity, Numerical Simulation, Pebble Bed, Theoretical Calculation

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