Wall surface effects on particle–wall friction factor in upward gas–solid flows

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• 作者：R. Mabrouk ; J. Chaouki ; C. Guy
• 关键词：Particle– ; wall friction ; Internal Circulating Fluidized Bed ; Friction factor
• 刊名：Powder Technology
• 出版年：2008
• 期刊代码：144_00325910
• 类别：et
• 出版时间：1 August 2008
• 卷：186
• 期：1
• 页码：80-88
• 文件大小：761 K

摘要

The variation of the particle–wall friction factor along the riser is investigated in an Internal Circulating Fluidized Bed (ICFB) riser 1 m in length and 0.052 m in diameter. The results obtained are based on calculating the normal and the shear forces at the wall under dynamic conditions rather than the static ones usually obtained in shear box experiments.