Review of entrainment correlations in gas–solid fluidization

JW Chew, A Cahyadi, CM Hrenya, R Karri… - Chemical Engineering …, 2015 - Elsevier
Despite the abundance of entrainment correlations in gas–solid fluidization made available
in the past few decades, the discrepancy between empirical prediction and experimental …

Porosity distributions in a fluidized bed with an immersed obstacle

JX Bouillard, RW Lyczkowski, D Gidaspow - AIChE Journal, 1989 - Wiley Online Library
Erosion in bubbling fluidized‐bed combustors is a serious issue that may affect their
reliability and economics. Available evidence suggests that the key to understanding this …

Comparative study of Transport Disengaging Height (TDH) correlations in gas–solid fluidization

A Cahyadi, AH Neumayer, CM Hrenya, RA Cocco… - Powder Technology, 2015 - Elsevier
Abstract Transport Disengaging Height (TDH), defined as the freeboard height whereby the
entrainment rate does not change appreciably [1–6], is an important parameter in the design …

Fluidized Bed Scale-Up for Sustainability Challenges. 1. Tomorrow's Tools

RA Cocco, JW Chew - Industrial & Engineering Chemistry …, 2024 - ACS Publications
The scaling up of fluidized beds has been purposefully pursued for more than 100 years.
Yet, over that time, scale-up tools have not significantly changed. Data analysis is typically a …

Elutriation from fluidized beds—I. Particle ejection from the dense phase into the freeboard

ST Pemberton, JF Davidson - Chemical engineering science, 1986 - Elsevier
Particle carry-over from the surface of a fluidized bed into the freeboard depends onthe
mechanism of bubble eruption. Particles may be ejected into the freeboard from the roofs or …

A study of the motion and eruption of a bubble at the surface of a two-dimensional fluidized bed using particle image velocimetry (PIV)

CR Müller, JF Davidson, JS Dennis… - Industrial & engineering …, 2007 - ACS Publications
Particle image velocimety (PIV) was used to study the motion of a single bubble as it
approached and then broke through the top surface of a two-dimensional (2D) gas-fluidized …

Effect of interparticle adhesion forces on elutriation of fine powders from a fluidized bed of a binary particle mixture

X Ma, K Kato - Powder Technology, 1998 - Elsevier
The elutriation of fine powders from a fluidized bed of a fine-coarse particle mixture was
investigated in a transparent column with a diameter of 7.1 cm and a height of 102 cm at …

Mathematical modelling and simulation of bubbling fluidised bed gasifiers

S Hamel, W Krumm - Powder technology, 2001 - Elsevier
A mathematical model for simulation of gasification processes of solid fuels in atmospheric
or pressurised bubbling fluidised beds incorporating bed and freeboard hydrodynamics, fuel …

Turbulence in the freeboard of a gas-fluidised bed: the significance of ghost bubbles

ST Pemberton, JF Davidson - Chemical engineering science, 1984 - Elsevier
The turbulence in the upward gas flow above a gas-fluidised bed was measured by hot wire
anemometry. In this region above the bed—defined as the free is the fluidising velocity. The …

Initial particle velocity spatial distribution from 2-D erupting bubbles in fluidized beds

D Santana, S Nauri, A Acosta, N García… - Powder Technology, 2005 - Elsevier
Some results on particle image velocimetry (PIV) in 2-D freely bubbling fluidized beds are
presented. The PIV applications were used in order to determine the initial particle velocity …