Jr. Van Ommen et al., Monitoring fluidization dynamics for detection of changes in fluidized bedcomposition and operating conditions, J FLUID ENG, 121(4), 1999, pp. 887-894
Citations number
15
Categorie Soggetti
Mechanical Engineering
Journal title
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
In many industrial applications of gas-solids fluidized beds, it is worthwh
ile to have an on-line monitoring method for detecting changes in the hydro
dynamics of the bed (due for example to agglomeration) quickly, In this pap
er such a method, based on the short-term predictability of fluidized bed p
ressure fluctuations, is examined. Its sensitivity is shown by experiments
with small step changes in the superficial gas velocity and by experiments
with a gradual change in the particle size distribution of the solids in th
e bed. Furthermore, it is demonstrated that rite method is well able to ind
icate ifa stationary hydrodynamic state has been reached after a change in
the particle size distribution (a 'grade change').