Open Access

Table 5

Temperature distribution in pebble.

Vf 20% 30% 40% 50% 60%

Equivalent thermal conductivity (J/cm/K) 0.24 0.21 0.18 0.15 0.12
6 cm
 T s -T c (°C) 80 80 80 80 80
 T f -T s (°C) 208 237 277 332 415
 T k -T f (°C) 3.7 2.5 1.8 1.5 1.2
 Max. T k (°C) 941 970 1009 1063 1146
 Allowable Avr. P.D. (MW/m3) 21 19 17 15 12
3 cm
 Max. T k (°C) 733 740 750 764 784
 Allowable Avr. P.D. (MW/m3) 72 67 60 53 45

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