Heat and mass transfer within dry packed fractured granular beds
Conference
·
OSTI ID:163221
- Univ. of Calgary, Alberta (Canada). Dept. of Mechanical Engineering
Fractured granular beds heated by hot gaseous streams are important in applications such as in oil recovery from oil sands by in-situ thermal methods and combustion. The present contribution examines some of the fundamental aspects of the physical transport processes that occur within these beds. Both experimental and analytical approaches were employed. The granular beds tested were made up of uniform diameter well compacted glass beads. The beds were cylindrical in shape containing an axial small diameter central circular channel that may be of different granule size from that of the main bed so as to simulate a fracture. It is shown that the mass flow rate of the hot gases and the permeability of both the bed and the central channel control the extent of dispersion of the heating stream within the bed and hence the heat transfer rate. The results of an analytical model formulated to simulate these processes showed good agreement with experimental results. An estimate of the magnitude of the average dispersion velocity of the gas within the bed was also established.
- OSTI ID:
- 163221
- Report Number(s):
- CONF-950116--; ISBN 0-7918-1289-8
- Country of Publication:
- United States
- Language:
- English
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