Results 11 to 20 of about 2,416 (290)
Recovery of Cenospheres and Fine Fraction from Coal Fly Ash by a Novel Dry Separation Method
Energies, 2020 Aluminosilicate microspheres are a valuable fraction of coal fly ash with diverse applications due to their low density. Currently, there is no efficient and ecologically rational method of cenosphere recovery from fly ash.
Jan Wrona +3 more
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On the Influence of Contact Models on Friction Forces in Discrete Element Method Simulations
Chemical Engineering Transactions, 2021 The discrete element method (DEM) is an important tool to simulate granular systems with high accuracy. Depending on the application, it is often unclear which model is more appropriate for the calculation of collision forces: the Hertzian approach is ...
Filippo Marchelli, Renzo Di Felice
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An Experimental Study on the Fluidisation Behaviour of Geldart C Glass Powders
KONA Powder and Particle Journal, 2014 The main objective of this work was the study of the fluidisation behaviour of a glass powder in order to allow its application by electrostatic pulverisation.
Khashayar Saleh +3 more
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Тваринництво та технології харчових продуктів, 2022 The existing semi-fluidisation devices are described by high-energy consumption during operation, heavy metal structure, and complexity of the drive mechanism.
Ihor Palamarchuk +4 more
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KONA Powder and Particle Journal, 2014 Recent literature of the past several years has borne out gas fluidisation phenomena of nano-particle beds and assemblies quite unlike the conventional behaviour observed in fluidisation of micron size or larger ...
Özcan Gündoğdu, Ugur Tüzün
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A Fluidisation Mechanism for Secondary Hydroeruptions in Pyroclastic Flow Deposits
Frontiers in Earth Science, 2020 Heating of water under hot pyroclastic flow deposits can drive hydroeruptions, forming craters and aprons of secondary deposits. According to the established conceptual model, steam pressure builds until failure of the pyroclastic overburden and a ...
M. A. Gilbertson +3 more
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Novel protocol for quantifying powder cohesivity through fluidisation tests
, 2022 We develop a novel theoretical model and experimental protocol to quantify the Granular Bond number of a powder through fluidisation tests. Our proposed model utilises the hysteresis in pressure drop and bed voidage fluidisation and de-fluidisation ...
core +2 more sources
South African Journal of Chemical Engineering, 2023 Air distribution is the primary factor that influences the performance of fluidized beds. To understand the hydrodynamics and operation of a fluidized bed, an assessment of the airflow and its distribution is essential.
Ntsitlola F. Nthatisi, AF Van Der Merwe
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Frictional properties and microstructural evolution of dry and wet calcite–dolomite gouges [PDF]
Solid Earth, 2021 Calcite and dolomite are the two most common minerals in carbonate-bearing faults and shear zones. Motivated by observations of exhumed seismogenic faults in the Italian Central Apennines, we used a rotary-shear apparatus to investigate the frictional ...
M. Demurtas +5 more
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CFD-simulation of gas-solid flow in bubbling fluidized bed reactor [PDF]
E3S Web of Conferences, 2022 The hydrodynamic behaviour of gas-solid flow has been studied in a two-dimensional bubbling fluidized bed reactor filled with particles of 275 µm in size, using computational fluid dynamics (CFD).
El ajouri Oumaima +2 more
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