Minimum fluidization velocities for supercritical water fluidized bed within the range of 633-693K and 23-27MPa
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Minimum fluidization velocities for supercritical water fluidized bed within the range of 633-693K and 23-27MPa
- 发表刊物：
- Int J Multiphase Flow
- 摘要：
- Supercritical water fluidized bed is a new reactor concept for biomass gasification. In this paper, an experimental
study on the hydrodynamics of a supercritical water fluidized bed was conducted. The frictional pressure drops of a fixed bed and a fluidized bed were measured for a temperature ranging from 633 to 693 K and pressure ranging from 23 to 27 MPa. The results show that the Ergun formula for calculating the frictional pressure drop of a fixed bed can still be applied in supercritical water conditions. The average deviation between Ergun formula and experiment results is 13.3%. A predicting correlation for the minimum fluidization velocity in a supercritical water fluidized bed was obtained based on the experimental results of a fixed bed and the fluidized bed pressure drop. The average error between the correlation and experiment results was about 3.1%. The results in this paper are useful for the design of SCW fluidized bed.
- 合写作者：
- Y. J. Lu, L. Zhao, Q. Han, L. P. Wei
- 卷号：
- 49
- 页面范围：
- 78-82
- 是否译文：
- 否
- 发表时间：
- 2012-10-18