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Experimental verification of scaling relationships for fluidized bed

โœ Scribed by M.T. Nicastro; L.R. Glicksman

Book ID
103008610
Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
758 KB
Volume
39
Category
Article
ISSN
0009-2509

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โœฆ Synopsis

Abstrac

-To verify the scaling relationships for fluidized beds, an atmospheric fluid&d bed combustor and a cold bed constructed to operate at the same values of the gOVeming nondimensional parameters were compared. The amplitude and frequency distribution of pressure fluctuations meas.uTed in both beds agree closely when these parameters are appropriately nondimensional&d. Thus, bubble characteristics of the two beds should be similar. Disagreements are shown to exist when all the nondimensional parameters are not kept equal between the hot bed and cold model. Variations in the particle size distribution and sphericity also cause non-similar behavior. When the hot bed material is used in the cold bed, there arc significant disagreements between the behavior of the two beds.

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