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Study on Liquid-Phase Axial Dispersion in Converging Taper Liquid-Solid Fluidized Beds 被引量:1
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作者 夏素兰 朱家骅 胡新辉 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2000年第2期134-139,共6页
It is found analytically that the parabolic radial profile of liquid velocity in cylindrical liquid-solid fluidized bed (LSFB) causes particles to circulate around some radial position. This is the main reason for liq... It is found analytically that the parabolic radial profile of liquid velocity in cylindrical liquid-solid fluidized bed (LSFB) causes particles to circulate around some radial position. This is the main reason for liquid-phase axial dispersions. The liquid-phase axial dispersion is depressed as the liquid velocity presents a flatter Bessel radial profile in a converging taper LSFB. The void fraction increases with axial distance in converging taper LSFB. The behavior produces less liquid-phase axial dispersion. Experimental results show good coincidence. 展开更多
关键词 converging taper liquid-solid fluidized bed liquid-phase axial dispersion radial profile of liquid velocity void fraction
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