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ISSN Online: 2377-424X

ISBN Print: 0-85295-345-3

International Heat Transfer Conference 10
August, 14-18, 1994, Brighton, UK

HEAT TRANSFER IN PACKED BEDS OF SPHERES WITH Dt/Dp ≤ 4

Get access (open in a dialog) DOI: 10.1615/IHTC10.4160
pages 225-230

Аннотация

Radial temperature profiles in fixed beds of spheres with dt/dp ≤ 4 can be well-fitted by pseudo-continuum models. Temperature measurements should be made at 45° angular intervals or less, to obtain profiles free of artifacts and reliable parameter estimates. An ergodic theorem exists for fixed bed heat transfer - temperatures measured in time (repacks) are equivalent to temperatures measured in space (around the angular coordinate) and give the same effective parameters. A general correlation for λ r and αw could not be established for dt/dp ≤ 4, as the parameter values depend on the individual packing structures.