Double beam and detector γ-radiation attenuation gauge for studying bubble phenomena in gas-solid fluidized beds |
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Authors: | Helmar Van Santen Zvonimir I. Kolar Robert F. Mudde Harry E. A. Van Den Akker |
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Abstract: | In this paper the technique of cross-correlating the void fractions derived from the transmission signals of two γ-sources is used for the non-intrusive study of bubble phenomena in gas-solid fluidized beds. Special attention is given to the optimization of this method with respect to the statistical uncertainty inherent to radioactive decay. Experiments in a 40 cm gas-solid fluidized bed illustrate that bubble velocity distributions can be obtained. |
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