复杂性在气固流化床压力信号分析中的运用

Analysis of Pressure Signals in Gas-solid Fluidized Bed Using Complexity Theory

提取了算法复杂性和涨落复杂性两个不同定义的参数 ,对气固流化床压力脉动信号进行分析。通过实验研究了复杂性参数随操作气速变化规律 ,结果表明两种复杂性参数对气泡相的行为有敏感反映 ,且认为涨落复杂性的定义更符合流化床流态特性。同时还对不同轴向位置以及不同静床高的涨落复杂性进行了规律性研究。

Two complexity parameters are adopted to analyze pressure signals in gas-solid fluidized bed. Complexity parameters changing with gas velocity are discussed. Experimental data indicate that these two parameters coincide well with the behavior of bubbles. Moreover, in shows that the identification of fluctuation complexity is corresponding well with regimes of fluidized bed. The complexity parameters varying with different axis position of sensor and different static bed height are also studied.