250
5 Numerical Models for Pebble-Bed Heat Transfer
Fig. 5.7 Packing structures of HTR-10 obtained by DEM simulation (a) and the radial distribution
function (b)
Fig. 5.8 Effective thermal conductivity of pebble bed
[14, 17, 27] and experimental measurements [15, 28] (see in Fig.5.8), where the
data uncertainty is mainly caused by experimental measurement errors and natural
convections of gas (100 kPa of helium, which may cause data fluctuation). By solving
Eqs. (5.43) and (5.44) and HNC integral equation, the parameter in Eqs. (5.46) and
(5.42) are b = 0.9730 and C = 5.7984 at α f = 0.39.
5 Numerical Models for Pebble-Bed Heat Transfer
Fig. 5.7 Packing structures of HTR-10 obtained by DEM simulation (a) and the radial distribution
function (b)
Fig. 5.8 Effective thermal conductivity of pebble bed
[14, 17, 27] and experimental measurements [15, 28] (see in Fig.5.8), where the
data uncertainty is mainly caused by experimental measurement errors and natural
convections of gas (100 kPa of helium, which may cause data fluctuation). By solving
Eqs. (5.43) and (5.44) and HNC integral equation, the parameter in Eqs. (5.46) and
(5.42) are b = 0.9730 and C = 5.7984 at α f = 0.39.