Effect of Distributor Plate Configuration on Pressure Drop in a Bubbling Fluidized Bed Reactor
A. E. Ghaly, A. Ergudenler, V. V. Ramakrishnan
Advances in Research · pp. 251–268 · Published 17 Oct 2014
10.9734/AIR/2015/8240Abstract
Aim: To study the effects of distributor plate shape and conical angle on the pressure drop were studied in a pilot scale fluidized bed system. Methodology: Five distributor plates (flat, concave with 5°, concave with 10°, convex with 5° and convex with 10°) were used in the study. The system was tested at two levels of sand particle size (a fine sand of 198 µm and coarse sand of 536 µm), various bed heights (0.5 D, 1.0 D, 1.5 D and 2.0 Dcm) and various fluidization velocities (1.25, 1.50, 1.75 and 2.00 Umf). Results: The pressure drop was affected by the shape and the conical angle of distributor plate, sand particle size and bed height. Less than theoretical values of the pressure drop were observed with the 10° concave distributor plate at lower fluidizing gas velocities for all bed heights. A decrease in the angle of convex and an increase in the angle of concave resulted in a decreased pressure drop. Greater values of pressure drop were obtained with larger sand particles than those obtained with small sand particles at all fluidizing velocities and bed heights. For all distributor plates, increasing the bed height increased the pressure drop but decreased the ratio of pressure drop across the distributor to the pressure drop across the bed (ΔPD/ΔPB). There was no variation in the pressure drop in the freeboard. Conclusion: Fluidizing gas velocities higher than 1.25Umf should be used to for a better fluidization, improved mixing and avoiding slugging of the bed.
References (23)
- 1 Fluidization Engineering [DOI]
- 2 Bio-fuels from thermochemical conversion of renewable resources: A review [DOI]
- 3 Biomass combustion in fluidized bed boilers: Potential problems and remedies [DOI]
- 4 Combustion and Gasification in Fluidized Beds [DOI]
- 5 Experimental and computational study of gas–solid fluidized bed hydrodynamics [DOI]
- 6 Numerical simulation of two-dimensional fluidized beds using the discrete element method (comparison between the two- and three-dimensional models) [DOI]
- 7 The effect of particle size distribution on minimum fluidization velocity at high temperature [DOI]
- 8 Mathematical modelling and simulation approaches of agricultural residues air gasification in a bubbling fluidized bed reactor [DOI]
- 9 Influence of the particle size distribution of powders on the velocities of minimum and complete fluidization [DOI]
- 10 Propagation of pressure waves and forced oscillations in gas-solid fluidized beds and their influence on diagnostics of local hydrodynamics [DOI]
- 11 A Study of the Motion and Eruption of a Bubble at the Surface of a Two-Dimensional Fluidized Bed Using Particle Image Velocimetry (PIV) [DOI]
- 12 A Canadian Biomass Inventory: Feedstocks for a Bio-based Economy 41
- 13 Particle Motions in a Gas-Fluidized Bed of Sand [DOI]
- 14 On the influence of aspect ratio and distributor in gas fluidized beds [DOI]
- 15 Distributor effects near the bottom region of turbulent fluidized beds [DOI]
- 16 Similarity in dense gas–solid fluidized bed, influence of the distributor and the air-plenum [DOI]
- 17 The Influence of the Distributor Plate on the Bottom Zone of a Fluidized Bed Approaching the Transition from Bubbling to Turbulent Fluidization [DOI]
- 18 MIXING PATTERNS AND RESIDENCE TIME DETERMINATION IN A BUBBLING FLUIDIZED BED SYSTEM [DOI]
- 19 Pressure fluctuations in gas-fluidized beds at elevated temperatures [DOI]
- 20 Limits of stable fluidization regimes in vessel with inclined gas distributor grid [DOI]
- 21 Fluidization Dynamics [DOI]
- 22 Fluidization regimes in non-slugging fluidized beds: the influence of pressure drop across the air distributor [DOI]
- 23 98/02063 Mathematical modelling of a fluidized bed straw gasifier: Part II—Model sensitivity [DOI]
Cited by 21
Abeth Novria Sonjaya, Prima Zuldian, A. S. Auzani · Case Studies in Chemical and Environmental Engineering · 2025
F. Njuguna, H. Ndiritu, B. Gathitu · International Journal of Engineering Research in Africa · 2023
Vishal Chauhan, P. Chavan, R. K. Singh · Particulate Science and Technology · 2023
Ntsitlola F. Nthatisi, AF van der Merwe · South African Journal of Chemical Engineering · 2022
Y. H. Bello, Mahmoud A. Ahmed, S. Ookawara · Energy · 2022
Akella Sriniketh, Basheer Ashraf Ali · Chemical Engineering Communications · 2019
Maryem Dhrioua, W. Hassen, Lioua Kolsi · Biomass & Bioenergy · 2019
Abeth Novria Sonjaya, A. S. Auzani, Prima Zuldian · E3S Web of Conferences · 2024
N. F. Bopape · 2019
Evalyne Thauvoye, Siebrecht Vanhooren, Anne Vandenhoeck · Journal of Religion, Spirituality & Aging · 2019
Showing 13 of 21 known citations — external sources report more than can currently be individually listed.
Related research
- Influence of Compounds Contents and Particle Size on Some Functional Properties of Moringa oleifera Leaves (Lam) Powders — shares topic coverage
- The Influence of Particle Size and Soaking Time on Surface Hardness of Carburized AISI 1018 Steel — shares topic coverage
- Effects of Sodium Metabisulphite and Blanching Pretreatments on the Quality Characteristics of Yam Bean (Pachyrhizus erosus) Flour — shares topic coverage
- Traditional Production, Processing and Quality Attributes of Ziziphus mauritiana in Savannah Region of Cameroon — shares topic coverage
- An Ion Pairing Approach to Enhance Oral Bioavailability of Alendronate — shares topic coverage
Article metrics
Real usage data collected on this platform.
68
Page views
0
PDF downloads
12
Outbound clicks
21
Citations
Views over time
Views by country
Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".
Traffic sources
Referring site, by host.
Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.