Solids mixing in a circulating fluidized bed |
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| Affiliation: | 1. Key Laboratory of Advanced Energy and Power, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China;2. Research Center for Clean Energy and Power, Chinese Academy of Sciences, Lianyungang, Jiangsu 222069, China;3. University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | A phenomenological model of solids mixing in a circulating fluidized bed is formulated. The characteristic feature of this model is taking into account the convective flows of particles in the radial direction, which provide the observed in practice essential decrease of the concentration of particles over the riser height. It is established by comparison of calculated and experimental curves of mixing that the value of the coefficient of radial dispersion of particles lies within the range 0.0006–0.006 m2/s. |
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