The determination of the partial coefficient of heat transfer from air to a drying fluidized mass of silicagel is given. The data obtained can be correlated by means of the equation h = 1.32 (R)"'re. A comparison of the external and internal heat exchange in a fluidized mass is presented.
Discussion of the paper ”The partial coefficient of heat-transfer in a drying fluidized bed“ by P.M. Heertjes and S.W. McKibbins
✍ Scribed by L.N. Johanson
- Publisher
- Elsevier Science
- Year
- 1957
- Tongue
- English
- Weight
- 113 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0009-2509
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✦ Synopsis
Tnnabove paperconcexnsthe measwem ent of heat-transfer CoefRcients in a fluid&d bed of wet silica gel particles. Reference ia made to similar work by KETI'ENEING, MANDERFIELD, and SMITE (Ckm. Eng. PtogtGss 1960 46 18Q) and to heat transfer from air to coal without drying by WALToN, OL8EN, and LEVENSPIEL (Ituf. En& Chmr. 1962 44 1474). Apparently the authors were unaware of the work by the writer and colleague (WUSLSY and JO-ON, Chem. Eng. Progreaa 1954 S8 847) in which heat-transfer coef8cients from gas to fluidized solid were obtained using an unsteady-state technique, and ln which the results of Knrrx~nr~o, MANDE~FIJZLD, and S~rrn were exteneively
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