Characteristics of Pressure Fluctuations in Different Operation Regimes of Gas-Solid Suspensions

Page: 330

O. Trnka, M. Hartman and V. Veselý

Institute of Chemical Process Fundamentals, Academy of Sciences of the Czech Republic, Prague


Pressure fluctuation signals were measured in a transparent fluidized-bed column 8 x 600 cm. A novel treatment procedure using the fast Fourier transform of the measured pressure fluctuations was elaborated, which makes it possible to construct plots describing the evolution of hydrodynamic behaviour of suspension from static bed to vertical pneumatic transport of particulate materials.


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