Recent research interest

• Design of cyclones for oil-gas-water-sand separation
  
• Design of cyclones for mineral separation
  
• Design and optimisation of deflection and centrifugal type of classifiers
  
• Optimisation of classifier for PVC
  
• Design of gas-liquid separator in fermentation
  
• Studies of re-entrainment in vane-pack separators
  
• Simulation of liquid entrainment at high pressures
  
• Process optimisation of metal-slag separation during metal tapping

Powder handling:

• Design of the new hopper for alumina unloading at the Elkem Lista plant.
  
• Solved serious clogging problem by redesign of the solids transport equipment for Rana Gruber
  
• Thermal performance of solid particles in process equipment
  
• Fluid Bed Technology
  

Process development:

• Optimization of various reactors for gas-solid phase synthesis
  
• Studies of heat- and mass flow in rotary furnaces
  
• Optimization of current efficiency in aluminium reduction cells, based on studies of fluid flow, heat and mass transfer.
  
• Studies of droplet size and mass flux distribution in the Osprey process for spray casting of metals
  

Industry measurements:

• Dynamic studies of temperature, pressures, gas composition and other process parameters in the FeSi and Si- process.
  
• Introduction of new online measuring techniques in the process industry
  
• High speed digital camera and digital thermo-video for detailed process analyses
  

Metal tapping and alloying:

• Studies of flows induced in ladles during tapping of steel. Effects of gas entrainment on dissolution times of alloy particles
  

Metal refining:

• Development and optimisation of various equipment for aluminium refining
  
• Development of an optical probe for measurements of bubble size
  
• Measurement techniques for metal flowrate
  
• Theoretical and experimental studies of melt convection and lining erosion
  

Metal casting:

• Experimental studies of metal to cooling water heat transfer.
  
• Theoretical studies of flow and solidification during aluminium billet casting.
  
• Redesign and optimisation of equipment for horizontal casting.
  
• Multiphase model development for studies of crystal flow, sedimentation and macro-segregation during metal solidification.
  

Environmental issues:

• Redesign of combustion chamber and off-gas channels in Ferro-Silicon furnaces
  
• Studies of how process parameters effect NOx and dioxin formation from Ferro-Silicon furnaces
  
• Design and optimisation of scrubbers for off-gas cleaning
  
• Simulations of off-gas riser channels from FeSi furnaces
  
• Ventilation of tapping smoke from a FeSi-furnace
  

Several aspects concerning recycling of aluminium

Electromagnetic fields:

• Studies of how turbulence is modified by DC magnetic fields
  
• Predictions of flows in aluminium reduction cells
• Coupling between electrochemistry and multiphase flow
  

Off-shore technology:

• Sand transport
  
• Sand separation
  
• Prediction of performance of multiphase flow mixer
  
• Analyses of cool-down performance in riser towers at deep waters
  
• Thermal behaviour of installations at the sea bed
  
• Model development for multiphase transportation in flow-lines
  
• Droplet erosion

Surface treatment

• Curing of powder coatings

Tool and theory development:

• Theoretical and experimental studies of a centrifuge for gas-droplet separation.
  
• Development of models for deposition of particles and droplets to solid walls
  
• Development of theoretical models and numerical techniques for studies of gas-solids, gas-droplet and liquid-bubble flows.
  
• Development of prediction tool for drilling-mud hydraulics
  
• Development of prediction tools for aluminium refining
  
• Visualisation tools for presenting and organising complex multidimensional data for LKAB, Sweden
  
• Development of turbulent combustion models for general chemical kinetics
  
• Theoretical models for inclusion removal in aluminium, based on turbulence, flotation and mechanical filtration
  
• Import of thermodynamic equilibrium calculations into flow simulation tools.
  
• Development of a customised version of the Fluent Software, Fluent Elyse, tailored for design of electrochemical cells.
  

Recent research interest

• Thermal plasma modelling
  
• Simulation of electromagnetic fields interacting with processes
  
• Acoustics in fluid structure interaction