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Capacitance probes for the investigation of the fluid dynamics of turbulent fluidized beds
Publikationstyp
Conference Paper
Date Issued
2017-05
Sprache
English
TORE-URI
Start Page
245
End Page
252
Citation
International Conference on Fluidized Bed Technology, CFB: 245-252 (2017-05)
Contribution to Conference
Scopus ID
An investigation of the turbulent fluidized bed regime was carried out using Group B particles according to Geldart's classification. The experimental plant was a CFB pilot-scale cold model (diameter: 0.4 m, height: 15.6 m). As bed material quartz sand (Sauter Mean the fluidized bed riser probe measurements were carried out at heights between 1.5 m and 8.34 m above the air distributor. A detailed validation of capacitance probe measurements in a fluidized bed system has been done by comparison with suction probe and pressure drop measurements. The gas velocity was varied in a range between 2 and 4 m/s. Results show a good agreement of solids concentrations measured by capacitance probe and pressure measurements. A typical core-annulus flow structure was observed. The results of the local solids circulation rate determined by capacitance probe were found to be different from suction probe measurements.