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The heat-transfer performance of gas—solid trickle flow over a regularly stacked packing
Verver, A.B. and Swaaij van, W.P.M. (1986) The heat-transfer performance of gas—solid trickle flow over a regularly stacked packing. Powder Technology, 45 (25). pp. 133-144. ISSN 0032-5910
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| Abstract: | The heat-transfer behaviour of a countercurrent gas—solid trickle flow contactor is studied, using coarse sand particles as the solids phase. Experimental data on the overall heat-transfer rate constant between the gas flow and the solid particle flow were obtained in a 0.15 m square cross-section column packed with regularly stacked packing elements specially developed for dilute countercurrent gas—solid contactors. Pressure drop over these packings is low, while countercurrent heat-transfer properties are remarkable; for 0.5 m of packing, the number of transfer units may amount to about 2 to 4, depending on the gas and solids mass flow rates and the packing construction used. Therefore, the present contactor might be attractive for application as a heat exchanger.
The pressure drop caused by the solids flow and the heat-transfer rate constant show very similar behaviour and at low solids mass fluxes their values agree with the data obtained from the single-particle flow model described in a previous paper [1]. Heat-transfer behaviour is described reasonably well by a model based on single-particle flow and by incorporating the effect of particle agglomeration at higher solids fluxes |
| Item Type: | Article |
| Copyright: | © 1986 Elsevier Science |
| Faculty: | Science and Technology (TNW) |
| Research Group: | |
| Link to this item: | http://purl.utwente.nl/publications/69582 |
| Official URL: | http://dx.doi.org/10.1016/0032-5910(66)80005-0 |
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