Dynamic estimation of bubble parameters in a fluidized bed subjected to load disturbances

Journal Article · Fri May 01 00:00:00 EDT 1987 · Ind. Eng. Chem. Res.; (United States)

DOI:https://doi.org/10.1021/ie00065a015· OSTI ID:5760879

Gyure, D C; Clough, D E

Bubble frequency and bubble velocity in a fluidized bed are estimated from the cross-correlation function of pressure measurements during dynamic changes in fluidizing conditions. Estimation is based on a theoretical form of the cross-correlation function, a mathematical function of bubble frequency and velocity. The two estimation algorithms used in this work are sequential weighted least squares and a variation of Kalman filtering. The usefulness of both algorithms is demonstrated by measuring bubble frequency and bubble velocity in real time during dynamic changes in bed inventory and particle size distribution.

• Research Organization: Coors Biotech Products Co., Ft. Collins, CO
• OSTI ID: 5760879
• Journal Information: Ind. Eng. Chem. Res.; (United States), Vol. 26:5
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
42 ENGINEERING
FLUIDIZATION
BUBBLE GROWTH
FLUIDIZED BEDS
BUBBLES
HYDRODYNAMICS
ALGORITHMS
CALCULATION METHODS
CORRELATIONS
FLOW RATE
FUNCTIONS
LEAST SQUARE FIT
PARTICLE SIZE
PRESSURE EFFECTS
PRESSURE MEASUREMENT
FLUID MECHANICS
MATHEMATICAL LOGIC
MAXIMUM-LIKELIHOOD FIT
MECHANICS
NUMERICAL SOLUTION
SIZE
400201* - Chemical & Physicochemical Properties
420400 - Engineering- Heat Transfer & Fluid Flow