Results 1 to 10 of about 672 (169)

Improving Nanosilica Fluidization by Premixing with Geldart A and B Particles: A Detailed Region-Wise Study [PDF]

open access: yesNanomaterials
Ultrafine nanosilica exhibits a strong tendency to form agglomerates, with sizes often several orders of magnitude larger than the primary particles. This agglomeration severely impairs its effectiveness in fluidization and other applications requiring ...
Syed Sadiq Ali   +3 more
doaj   +2 more sources

Experimental Investigation of Minimum Fluidization Velocity in Three Phase Inverse Fluidized Bed System [PDF]

open access: yesEngineering and Technology Journal, 2013
Minimum fluidization velocity is one of the most important parameters when characterizing the hydrodynamics of a fluidized bed. Experiment studies on the effects of bed height and material density on the minimum fluidization velocity for inverse ...
Khawla A. Ali   +2 more
doaj   +1 more source

Investigating the Influence of Distributor Type, Particle Size and Rice Husk Percentage on Fluidized Beds through Cold Fluidization Experiments

open access: yesEnergies, 2023
This work studies a fluidization system through cold experiments by using a mixture of rice husk and sand to investigate three parameters: type of bed distributor (perforated plate and plate with Tuyere-type injectors), sand granulometry (mean diameters ...
Fernando M. P. Balestieri   +2 more
doaj   +1 more source

Prediction of minimum fluidization velocity in pulsed gas-solid fluidized bed [PDF]

open access: yesChemical Engineering Journal, 2020
Abstract Fluidized bed technology plays a vital role in petrochemistry and coal separation. To enhance fluidization stability, the flow is periodically introduced into the gas–solid fluidized bed to form a pulsed gas–solid fluidized bed (PGFD). As the main fluidization parameter, the minimum fluidization velocity (umf) can reflect the change of the ...
Yanjiao Li   +7 more
openaire   +1 more source

A Study of the Hydrodynamics Behavior of Cylindrical Gas-Solid Fluidized Beds for pharmaceutical material “Paracetamol “

open access: yesJournal of Engineering, 2020
The hydrodynamics behavior of gas - solid fluidized beds is complex and it should be analyzed  and understood due to its importance in the design and operating of the units.
Maha Muhyi Alwan
doaj   +1 more source

Minimum fluidization velocities of binary and ternary biomass mixtures with silica sand

open access: yesEnergy Reports, 2020
Minimum fluidization velocity is an important property which can influence the hydrodynamics and chemical conversion in fluidized bed reactor. Most of the fluidized bed boilers usually mix raw biomass solid particles with medium silica sand solid ...
Chaiwat Soanuch   +3 more
doaj   +1 more source

Modeling the effect of shrinkage on fluidized bed drying of orthodox broken type tea [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2019
Fermented tea particles (dhool) are a polydisperse system subject to shrinkage during fluidized bed drying, which is an important process in the production of orthodox broken type tea.
Raveendran K.   +3 more
doaj   +1 more source

Hydrodynamic Properties Investigation of Ebullated Bed Reactor Using Non-Newtonian Liquid [PDF]

open access: yesEngineering and Technology Journal, 2022
The importance of using EBR has been renewed recently due to the sharp increase in heavy feedstocks sent to refineries and the hydrocracking process. Most of these feedstocks have a non-Newtonian behavior.
Zahraa Hassan   +3 more
doaj   +1 more source

Effect of Isopropanol on the Fluidization of Hydrophilic Titanium Nano-Powder [PDF]

open access: yesIranian Journal of Chemical Engineering, 2022
The effect of adding isopropanol (ISP) to nitrogen as the fluidizing gas on the hydrodynamics of the fluidization of hydrophilic titanium nanoparticles was studied. It was shown by the pressure drop method that adding ISP reduces the minimum fluidization
H. Hoorijani, R. Zarghami, N. Mostoufi
doaj   +1 more source

A CFD Comparative Study of Bubbling Fluidized Bed Behavior with Thermal Effects Using the Open-Source Platforms MFiX and OpenFOAM

open access: yesFluids, 2021
This work studies the performance of two open-source CFD codes, OpenFOAM and MFiX, to address bubbling fluidized bed system at different temperature and heat transfer conditions.
Andrés Reyes-Urrutia   +5 more
doaj   +1 more source

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