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气固流化床中空隙率时间序列的特性识别
Identifying Characteristic of the Time Series of Voidage in Gas-Solid Fluidized Bed
【摘要】 采用PV4A型颗粒测速仪测定了Φ90×1000mm有机玻璃流化床中不同操作条件的空隙率时间序列,通过Fourier分析和以相空间重构理论为基础的混沌特征参数—关联维来分别揭示气固流化床中空隙率时间序列的频域特性和混沌特性。
【Abstract】 The time series of voidage are measured by PV4A particles velocity analyzer at different operation conditions in gas-solid fluidized bed with 90mm diameter in the experiment. To identify characteristic of voidage, the time series are analyzed by power spectrum method and chaotic theory.
【关键词】 气固流化床;
空隙率;
时间序列;
功率谱;
混沌;
【Key words】 gas-solid fluidized bed; voidage; time series; power spectrum density; chaotic theory;
【Key words】 gas-solid fluidized bed; voidage; time series; power spectrum density; chaotic theory;
- 【文献出处】 四川轻化工学院学报 ,Journal of Sichuan Institute of Light Industry and Chemical Technology , 编辑部邮箱 ,2002年04期
- 【分类号】TQ021
- 【下载频次】58