A
steady-state one-dimensional heat transfer method was used to measure
the effective thermal conductivity of Sultani and El-Lajjun oil shale
particles. The particles were packed in a cylindrical bed and heated
uniformly over a temperature range of 25 to 250°C. The effect of
particle sizes of < 250, 500-710, and 1000-1400 w m on thermal
conductivity was also investigated. The effective thermal conductivity
of the samples was observed to decrease with increasing temperature.
Moreover, the values of thermal conductivity were found to increase with
increasing oil content of the shale samples. Over the tested range, particle size showed little effect on thermal conductivity