Both of voidage and particle colliding force are key parameters in gas-solid fluidized beds. The time series of voidage and particle colliding force at different operation conditions is analyzed and researched by statistic method-. power spectrum and chaos theory in this papers.
For PVC sands with different diameter, the time series of voidage is measured by PV4A particle velocity analysis at different operation conditions, and a multchannel data automatic acquisition and pressure strain gauge a...