Chaotic behavior of local temperature fluctuations in a laboratory-scale circulating fluidized bed

摘要: Abstract Local instantaneous temperature signals obtained in a two-story gas–solids circulating fluidized bed have been analyzed using chaos theory. Dominant frequencies were assessed spectral analysis. The pseudo-phase space was used as preliminary analysis for deterministic the experimental data. correlation dimension to evaluate fractal dimension, embedding and degree of freedom system. In respect heat transfer process, two distinct regimes particular dimensions identified: dilute-particle-controlled regime cluster-controlled regime.