Effective Thermal Conductivity of a Li₂TiO₃Pebble Bed for a DEMO Blanket

Effective thermal conductivity of a compressed Li2TiO3 pebble bed

“…However, these properties were investigated independently in the previous works. With regard to simultaneous measurement of thermal conductivity and mechanical conditions of the pebble bed at different temperatures, there are limited numbers of reports [1,2]. In the present paper, a new apparatus is developed and effective thermal conductivity and stress-strain properties of Li 2 TiO 3 pebble beds are measured simultaneously under different compressive loads and temperatures.…”

Experimental measurement of effective thermal conductivity of packed lithium-titanate pebble bed

“…Since last two decades; worldwide efforts have been dedicated to its R&D [1][2][3][4][5][6][7][8][9][10][11][12]. The other probable solid breeders are lithium oxide (Li 2 O), lithium orthosilicate (Li 4 SiO 4 ), and lithium-metazirconate (Li 2 ZrO 3 ).…”

“…In 2001, Enoeda et al [10] measured k eff of Li 2 TiO 3 , Li 4 SiO 4 , Li 2 ZrO 3 , and Li 2 O pebble beds under helium atmosphere and presented correlations based on experimental results. Hatano et al [11] determined k eff of Li 2 TiO 3 pebble bed at vacuum to 0.2 MPa helium atmosphere and temperature range from 420 to 775 • C. In 2002, Hoshino et al [12] reported their study on effective thermal conductivity of single and binary pebble bed of Li 2 TiO 3 pebbles. In 2005, Tanigawa et al [13] et al [14] measured k eff of Li 2 TO 3 pebble bed; also under helium atmosphere.…”

Development of Supercritical Pressure Water Cooled Solid Breeder Blanket in JAERI

“…A new test facility was built to measure the effective thermal conductivity of a Li 2 TiO 3 pebble bed under a compressive load [6]. The pebbles were installed in a load cell, which could be compressed by a piston in one direction, and the thermal conductivity was measured using the hot wire method.…”