Sentence examples for minimum fluidization condition from inspiring English sources

The behaviour of a gas solid flow in a bubbling fluidized bed operated near the minimum fluidization condition is strongly influenced by the frictional stresses between the particles, these being highly concentrated and their motion dominated by enduring contact among them and with the walls.

A fluidized-bed heat-exchanger design operating close to the minimum fluidization condition is proposed in this work.

The last number relates the cross-sectional average solids concentration to the solids concentration at minimum fluidization condition.

However, it is independent from the superficial gas velocity when the bed was operated above the minimum fluidization condition at the same elevated pressure.

Beyond the minimum fluidization conditions the excess gas passes through the bed as bubbles.

Next hot gas injected into a colder bed that is slightly above minimum fluidization conditions is modeled.

The computations are started from minimum fluidization conditions and show the formation, growth, detachment, rise and subsequent bursting of the first bubble in the freeboard region.

Finally, it can clearly be seen that Syamlal and O'Brien drag function gives a good prediction in terms of pressure drop and also, Syamlal and O'Brien drag law correctly predicts the minimum fluidization conditions.

These transfer coefficients were then used to calculate jd, mass transfer factors, for this fluidized bed system and also the product jdRef which has been found to depend on Remf, the corresponding Reynolds number at minimum fluidization conditions.

The superficial gas velocity at minimum fluidization conditions is calculated from the correlations gives by Kunii and Levenspiel [11]: U mf = R e mf μ g ρ g d p Open image in new window (1) Ar = g d p 3 ρ g ρ p - ρ g μ g 2 Open image in new window (1a) R e mf = 33.7 2 + 0.0408 Ar 0.5 - 33.7, Open image in new window (1b).

Therefore the minimum fluidization air velocity to fluidize the sand particles and pressure drop are crucial hydrodynamic parameters for analysing the operation and design of fluidized bed combustors.