Measurement of effective thermal conductivity of lithium oxide and beryllium sphere packed bed

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

“…In the following year; Sullivan [4] reported their measured k eff values for Li 2 ZrO 3 pebble bed. They had conducted experiments at 0.1 MPa helium atmosphere in the temperature range of 70-500 • C. Enoeda et al [5] conducted experiments to measure k eff of Li 2 O pebble bed, in 1994. Donne and Sordon [6] repeated their experiments in 1994, to measure k eff of 0.35-0.6 mm Li 4 SiO 4 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 ).…”

Effective Thermal Conductivity of Lithium Ceramic Pebble Beds for Fusion Blankets: A Review

“…In general, the packing fraction ranges from 60 to 64% for single size beds while it ranges from 80 to 84% for binary size beds. In a previous study 5 the results showed that effective conductivity of beryllium/helium pebble bed is directly proportional to the packing fraction.…”

“…V.G. Enoeda et al 5 In 1994, Enoeda et al 5 presented their measurements of effective conductivity of Li 2 O pebbles bed. The measurements were performed with ø1mm Li 2 O spheres within a temperature range of 150-650 C. Helium, at 1atm, was used in the packed beds.…”

Application of a model to investigate the effective thermal conductivity of randomly packed fusion pebble beds

“…Although many studies, such as calculation modeling [1][2][3][4][5][6][7][8] and experimental measurements [9][10][11][12][13][14][15][16][17][18][19] on the effective thermal conductivity of pebble beds have been performed, effects and comprehensive analysis of many other influencing factors on k eff are still not carried out. Considering that experimental studies on so many influencing factors will spend much money and time, the preliminary study using a calculation model appear more necessary and important.…”