Study of hydrodynamic characteristics of sawdust in a circulating fluidized bed

Chu Wang, Zhaoqiu Zhou, Xiuli Yin, Longlong Ma, Chuangzhi Wu, Jianjun Xie, Qi Miao, Jingxu Zhu

Research output: Journal PublicationArticlepeer-review

1 Citation (Scopus)


Hydrodynamic characteristics of sawdust were investigated in a circulating fluidized bed (CFB) with height of 10m and inner diameter of 0.28 m. Experiments were carried out to study the axial and radial distributions of particle velocity and bed voidage along the riser under the conditions of superficial velocity Ug=1.81~2.26 m/s, particle circulation rate Gs=0.42~0.76 kg/(m2·s). The results show that stable operation of the CFB can be obtained if sufficient materials are kept in the downcomer; particle flow in the riser shows a typical core-annulus structure; average bed voidage goes up first and then down along with bed height; flow characteristics along the riser of core, transition and annulus area can be obtained by dividing the cross section into three areas with r/R=0~0.71, 0.71~0.93 and 0.93~1.00.

Original languageEnglish
Pages (from-to)501-506
Number of pages6
JournalTaiyangneng Xuebao/Acta Energiae Solaris Sinica
Issue number4
Publication statusPublished - Apr 2010
Externally publishedYes


  • Circulating fluidized bed
  • Cold state experiment
  • Hydrodynamic characteristics
  • Sawdust

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology


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