Search Results - "Hoffmann, Alex C"

An extension of the hard-sphere particle–particle collision model to study agglomeration by Kosinski, Pawel, Hoffmann, Alex C.

“…When performing Eulerian–Lagrangian simulations of particle–fluid flows collisions between the particles need to be accounted for. One of the methods used for…”
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Single-Cell Tests to Explore the Reliability of Sofc Installations Operating Offshore by Thambiraj, Nelson, Waernhus, Ivar, Suciu, Crina, Vik, Arild, Hoffmann, Alex C.

“…This paper studies the robustness of off-shore solid oxide fuel cell (SOFC) installations and the nature and causes of possible cell degradation in marine…”
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First and second-order models for the vortex length in cylinder-on-cone cyclones based on large-eddy simulations by Svensen, Ellinor Arguilla, Hoffmann, Alex C.

“…The common design of cyclone separators is the cylinder–on–cone design, and the conical shape has a strong effect on the behavior of the vortex core low in the…”
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Micromechanics of agglomeration forced by the capillary bridge: The restitution of momentum by Balakin, Boris V., Alyaev, Sergey, Hoffmann, Alex C., Kosinski, Pawel

“…The formation of capillary bridge formed by a liquid adsorbate is one of the main reasons for agglomeration in multiphase flows. Agglomeration takes place when…”
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Modeling of transport, chemical and electrochemical phenomena in a cathode-supported SOFC by Ho, Thinh X., Kosinski, Pawel, Hoffmann, Alex C., Vik, Arild

“…This paper investigates the performance of a planar cathode-supported solid oxide fuel cell (SOFC) with composite electrodes using a detailed numerical model…”
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An investigation of the consequences of primary dust explosions in interconnected vessels by Kosinski, Pawel, Hoffmann, Alex C.

“…In this article Eulerian–Lagrangian 2D computer simulations of consequences of primary dust explosions in two vessels connected by a duct are described. After…”
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Modelling agglomeration and deposition of gas hydrates in industrial pipelines with combined CFD-PBM technique by Balakin, Boris V., Lo, Simon, Kosinski, Pawel, Hoffmann, Alex C.

“…Hydrates of light hydrocarbons are frequently formed during the subsea petroleum production. These crystalline ice-like solids may accumulate at concentrations…”
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Positron emission particle tracking and CFD investigation of hydrocyclones acting on liquids of varying viscosity by Hoffmann, Alex C., Skorpen, Åshild, Chang, Yu-Fen

“…•PEPT tracks of a particle flowing through a hydrocyclone are shown.•The tracks reveal hitherto unseen features. The effect of the fluid viscosity is…”
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A correlation giving improved description of the capacity and efficiency of vane‐type gas–liquid separators by Dries, Huub W., Hoffmann, Alex C.

“…Vane‐type demisters are attractive droplet separators because they combine robustness and sufficient separation efficiency with a low‐pressure drop, a high…”
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The collision efficiency in a shear flow by Balakin, Boris, Hoffmann, Alex C., Kosinski, Pawel

“…Fluid flows with cohesive particles are present in oil industry (e.g. natural gas/oil with hydrates, wax or asphaltenes), medicine (e.g. blood cells), nano-…”
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Tape casting of lanthanum chromite for solid oxide fuel cell interconnects by Rubio, Diego, Suciu, Crina, Waernhus, Ivar, Vik, Arild, Hoffmann, Alex C.

“…A method, based on tape-casting, is developed for the manufacture of ceramic interconnects for SOFCs. The development of an optimized process is shown with a…”
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A study of transfer rates of phenols from caustic to crude oil by Hoffmann, Alex C., Pletten, Sandra S., Mania, Mirko

“…•Experiments for studying phenol extraction an aqueous stream were designed and tested.•The two-resistance model described the system and quantified the…”
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A brief review on the effect of particle size on the laminar burning velocity of flammable dust: Application in a CFD tool for industrial applications by Ghaffari, Maryam, Hoffmann, Alex C., Skjold, Trygve, Eckhoff, Rolf K., van Wingerden, Kees

“…Several factors influence the rate of flame propagation in dust clouds, such as the chemical composition of the dust, moisture content, particle shape,…”
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Population balance model for nucleation, growth, aggregation, and breakage of hydrate particles in turbulent flow by Balakin, Boris V, Hoffmann, Alex C, Kosinski, Pawel

“…This article describes a computational model for the size evolution of hydrate particles in a pipeline-pump system with turbulent flow. The model is based on…”
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PEPT: An invaluable tool for 3-D particle tracking and CFD simulation verification in hydrocyclone studies by Chang, Yu-Fen, Adamsen, Tom C.H., Pisarev, Gleb I., Hoffmann, Alex C.

“…Particle tracks in a hydrocyclone generated both experimentally by positron emission particle tracking (PEPT) and numerically with Eulerian-Lagranian CFD have…”
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Removal of particles from highly viscous liquids with hydrocyclones by Marthinussen, Svein-Arne, Chang, Yu-Fen, Balakin, Boris, Hoffmann, Alex C.

“…In this paper the performance characteristics, expressed as cut-size, grade-efficiency curve and pressure drop, have been determined for a hydrocyclone acting…”
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Extended hard-sphere model and collisions of cohesive particles by Kosinski, Pawel, Hoffmann, Alex C

“…In two earlier papers the present authors modified a standard hard-sphere particle-wall and particle-particle collision model to account for the presence of…”
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Dispersion of particle pulses in fluidized beds measured by positron emission tomography by Dechsiri, C., Van der Zwan, E. A., Dehling, H. G., Hoffmann, Alex. C.

“…The dispersion of pulses of a range of shapes through a bubbling fluidized bed has been studied using an ECAT EXACT HR+ PET camera. The equipment and materials…”
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Effects of heat sources on the performance of a planar solid oxide fuel cell by Ho, Thinh X., Kosinski, Pawel, Hoffmann, Alex C., Vik, Arild

“…This paper presents an analysis of the effects of heat sources on performance of a planar anode-supported solid oxide fuel cell (SOFC). Heat sources in SOFCs…”
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Numerical analysis of a planar anode-supported SOFC with composite electrodes by Ho, Thinh X., Kosinski, Pawel, Hoffmann, Alex C., Vik, Arild

“…This paper investigates a planar anode-supported solid oxide fuel cell (SOFC) with mixed-conducting electrodes. Direct internal methane reforming in the…”
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