Academic article

• Gundersen, Ted Ørjan Seim; Torbergsen, Erik Andre; Balakin, Boris et al. (2024). Improved Prediction of Pump Performance Through the Rotation-Curvature Correction - An Experimental and Numerical Study of a Low-Specific-Speed Helico-Axial Compression Cell in Series. (external link)
• Gundersen, Ted Ørjan Seim; Moënne-Loccoz, Victor; Dupoiron, Marine et al. (2023). Visualization of Unsteady Flow in a Multistage Helico-Axial Pump. (external link)
• Saparbayeva, Nazerke; Chang, Yu-Fen; Kosinski, Pawel Jan et al. (2023). Cohesive collisions of particles in liquid media studied by CFD-DEM, video tracking, and Positron Emission Particle Tracking. (external link)
• Hoffmann, Alex Christian; Fonnes, Daniel Gilje; Chang, Yu-Fen (2023). Flowpattern in hydrocyclones, numerical simulations with experimental verification. (external link)
• Hoffmann, Alex Christian (2023). Signs of stress. (external link)
• Struchalin, Pavel; Øye, Vegar Hovdenakk; Kosinski, Pawel Jan et al. (2022). Flow loop study of a cold and cohesive slurry. Pressure drop and formation of plugs. (external link)
• Svensen, Ellinor Arguilla; Hoffmann, Alex Christian (2020). First and second-order models for the vortex length in cylinder-on-cone cyclones based on large-eddy simulations. (external link)
• Hoffmann, Alex Christian (2020). A note on the multiphase balance equations. (external link)
• Thambiraj, Nelson; Warnhus, I.; Suciu, C. et al. (2020). Single-Cell Tests to Explore the Reliability of Sofc Installations Operating Offshore. (external link)
• Ghaffari, Maryam; Hoffmann, Alex Christian; Skjold, Trygve et al. (2019). 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. (external link)
• Hoffmann, Alex Christian; Heggland, Åshild Skorpen; Chang, Yu-Fen (2019). Positron emission particle tracking and CFD investigation of hydrocyclones acting on liquids of varying viscosity. (external link)
• Dries, Huub; Hoffmann, Alex Christian (2019). A correlation giving improved description of the capacity and efficiency of vane-type gas-liquid separators. (external link)
• Hoffmann, Alex Christian; Pletten, Sandra Stang; Mania, Mirko (2019). A study of transfer rates of phenols from caustic to crude oil. (external link)
• Suciu, C.; Dorolti, E.; Hoffmann, Alex Christian (2018). Physico-chemical properties of nanocrystalline YSZ powders as a function of doping level and electrical properties after sintering. (external link)
• Balakin, Boris; Adamsen, Tom Christian Holm; Chang, Yu-Fen et al. (2017). Non-invasive studies of multiphase flow in process equipment. Positron emission particle tracking technique.. (external link)
• Karakitsiou, Stamatina; Holst, Bodil; Hoffmann, Alex Christian (2017). Pressure-Driven Gas Flow through Nano-Channels at High Knudsen Number. (external link)
• Thambiraj, Nelson; Suciu, C.; Warnhus, I. et al. (2017). Effect of Oxygen Depletion to the Cathode on the Working of Solid Oxide Fuel Cells. (external link)
• Rubio, Diego; Suciu, C.; Warnhus, I. et al. (2017). Tape Casting of Lanthanum Chromite for Solid Oxide Fuel Cell Interconnects. (external link)
• Thambiraj, Nelson; Suciu, C.; Warnhus, I. et al. (2017). SOFC Cathode Degradation due to Salt Contamination. (external link)
• Karakitsiou, Stamatina; Holst, Bodil; Hoffmann, Alex Christian (2016). Apparatus for measuring pressure-driven transport through channels at high Knudsen numbers. (external link)
• Hellestø, Aslak Solvang; Ghaffari, Maryam; Balakin, Boris et al. (2016). A parametric study of cohesive particle agglomeration in a shear flow : numerical simulations by the discrete element method. (external link)
• Balakin, Boris; Lo, Simon; Kosinski, Pawel Jan et al. (2016). Modelling agglomeration and deposition of gas hydrates in industrial pipelines with combined CFD-PBM technique. (external link)
• Chang, Yu-Fen; Hoffmann, Alex Christian (2015). A Lagrangian study of liquid flow in a reverse-flow hydrocyclone using positron emission particle tracking. (external link)
• Kosinski, Pawel Jan; Balakin, Boris V; Middha, Prachi et al. (2014). Collisions between particles in multiphase flows: Focus on contact mechanics and heat conduction. (external link)
• Marthinussen, Svein-Arne; Chang, Yu-Fen; Balakin, Boris V et al. (2014). Removal of particles from highly viscous liquids with hydrocyclones. (external link)
• Sæthre, Bjørn Steen; Hoffmann, Alex Christian; Spoel, David van der (2014). Order Parameters and Algorithmic Approaches for Detection and Demarcation of Interfaces in Hydrate−Fluid and Ice−Fluid Systems. (external link)
• Balakin, Boris V; Hoffmann, Alex Christian; Kosinski, Pawel Jan (2014). Coupling STAR-CD with a population-balance technique based on the classes method. (external link)
• Balakin, Boris V; Alyaev, Sergey; Hoffmann, Alex Christian et al. (2013). Micromechanics of agglomeration forced by the capillary bridge: The restitution of momentum. (external link)
• Chang, Yu-Fen; Adamsen, Tom Christian; Pisarev, Gleb et al. (2013). PEPT: an invaluable tool for 3-D particle tracking and CFD simulation verification in hydrocyclone studies. (external link)
• Middha, Prachi; Balakin, Boris V; Leirvåg, Line Kristin et al. (2013). PEPT - A novel tool for investigation of pneumatic conveying. (external link)
• Kosinski, Pawel Jan; Balakin, Boris V; Middha, Prachi et al. (2013). Heat conduction during collisions of cohesive and viscoelastic particles. (external link)
• Balakin, Boris V; Notøy, Iryna; Hoffmann, Alex Christian et al. (2012). The formation of deposit in a magnetic fluid: Numerical and experimental study. (external link)
• Chang, Yu-Fen; Adamsen, Tom Christian; Hoffmann, Alex Christian (2012). Using a PET Camera to Track Individual Phases in Process Equipment with High Temporal and Spatial Resolutions: Algorithm Development. (external link)
• Ghaffari, Maryam; Vestvik, Anders; Balakin, Boris V et al. (2012). Deposition capabilities of turbulent particle-laden flow passing an obstacle using experiment and CFD. (external link)
• Sæthre, Bjørn Steen; Spoel, David van der; Hoffmann, Alex Christian (2012). Free energy of separation of structure II clathrate hydrate in water and a light oil. (external link)
• Pisarev, Gleb; Hoffmann, Alex Christian (2012). Effect of the 'end of the vortex' phenomenon on the particle motion and separation in a swirl tube separator. (external link)
• Pisarev, Gleb; Gjerde, Vidar; Balakin, Boris V et al. (2012). Experimental and computational study of the "end of the vortex" phenomenon in reverse-flow centrifugal separators. (external link)
• Ghaffari, Maryam; Chang, Yu-Fen; Balakin, Boris V et al. (2012). CFD Modeling of PEPT Results of Particle Motion Trajectories in a Pipe over an Obstacle. (external link)
• Balakin, Boris V; Hoffmann, Alex Christian; Kosinski, Pawel Jan (2012). The collision efficiency in a shear flow. (external link)
• Chang, Yu-Fen; Ilea, Catalin Grigore; Aasen, Øystein Lee et al. (2011). Particle flow in a hydrocyclone investigated by positron emission particle tracking. (external link)
• Balakin, Boris V; Notøy, Iryna; Hoffmann, Alex Christian et al. (2011). CFD model for the magnetically forced formation of an obstructive deposit in a magnetorheological fluid. (external link)
• Pisarev, Gleb; Hoffmann, Alex Christian; Peng, Weiming et al. (2011). Large Eddy Simulation of the vortex end in reverse-flow centrifugal separators. (external link)
• Tikkanen, Hanna-Mari Viktoria; Suciu, Crina S.; Wærnhus, Ivar et al. (2011). Examination of the co-sintering process of thin 8YSZ films obtained by dip-coating on in-house produced NiO-YSZ. (external link)
• Ilea, Catalin Grigore; Kosinski, Pawel Jan; Hoffmann, Alex Christian (2011). Numerical study on the dynamics of a jet-vortex interaction. (external link)
• Balakin, Boris V; Hoffmann, Alex Christian; Kosinski, Pawel Jan (2011). Experimental study and computational fluid dynamics modeling of deposition of hydrate particles in a pipeline with turbulent water flow. (external link)
• Pisarev, Gleb; Hoffmann, Alex Christian (2011). Certainties and uncertainties in CFD prediction of the end of the vortex behaviour in centrifugal separators. (external link)
• Tikkanen, Hanna-Mari Viktoria; Suciu, Crina S.; Wærnhus, Ivar et al. (2011). Dip-coating of 8YSZ nanopowder for SOFC applications. (external link)
• Kosinski, Pawel Jan; Hoffmann, Alex Christian (2011). Extended hard-sphere model and collisions of cohesive particles. (external link)
• Chang, Yu-Fen; Pisarev, Gleb; Hoffmann, Alex Christian (2011). Numerical Study of the "End of the Vortex" Phenomenon in a Hydrocyclone Separator. (external link)
• Peng, Weiming; Christensen, Dorthe; Jacobsson, Siri et al. (2010). Studies of the flow in and around gas dedusters and demisters using neutrally buoyant tracer. (external link)
• Kosinski, Pawel Jan; Hoffmann, Alex Christian (2010). Quantification of the adhesive impulse for the extended hard-sphere model. (external link)
• Balakin, Boris V; Hoffmann, Alex Christian; Kosinski, Pawel Jan et al. (2010). Combined CFD/Population Balance Model for gas hydrate particle size prediction in turbulent pipeline flow. (external link)
• Ho, Thinh Xuan; Kosinski, Pawel Jan; Hoffmann, Alex Christian et al. (2010). Effects of heat sources on the performance of a planar solid oxide fuel cell. (external link)
• Ho, Thinh Xuan; Kosinski, Pawel Jan; Hoffmann, Alex Christian et al. (2010). Transport, chemical and electrochemical processes in a planar SOFC: Detailed three-dimensional modeling. (external link)
• Balakin, Boris V; Pedersen, Håkon; Kilinc, Ziya et al. (2010). Turbulent flow of freon R11 hydrate slurry. (external link)
• Balakin, Boris V; Hoffmann, Alex Christian; Kosinski, Pawel Jan et al. (2010). Eulerian-Eulerian CFD model for the sedimentation of spherical particles in suspensions with high particle concentrations. (external link)
• Kosinski, Pawel Jan; Hoffmann, Alex Christian (2010). An extension of the hard-sphere particle-particle collision model to study agglomeration. (external link)
• Balakin, Boris V; Hoffmann, Alex Christian; Kosinski, Pawel Jan (2010). Population Balance Model for Nucleation, Growth, Aggregation, and Breakage of Hydrate Particles in Turbulent Flow. (external link)
• Balakin, Boris V; Hoffmann, Alex Christian; Kosinski, Pawel Jan et al. (2010). Turbulent flow of hydrates in a pipeline of complex configuration. (external link)
• Ho, Thinh Xuan; Kosinski, Pawel Jan; Hoffmann, Alex Christian et al. (2009). Numerical analysis of a planar anode-supported SOFC with composite electrodes. (external link)
• Mæland, Dagfinn; Suciu, Crina S.; Wærnhus, Ivar et al. (2009). Sintering of 4YSZ (ZrO2+4 mol% Y2O3) nanoceramics for solid oxide fuel cells (SOFCs), their structure and ionic conductivity. (external link)
• Ilea, Catalin Grigore; Kosinski, Pawel Jan; Hoffmann, Alex Christian (2009). The effect of polydispersity on dust lifting behind shock waves. (external link)
• Kosinski, Pawel Jan; Hoffmann, Alex Christian (2009). Extension of the hard-sphere particle-wall collision model to account for particle deposition. (external link)
• Ho, Thinh Xuan; Kosinski, Pawel Jan; Hoffmann, Alex Christian et al. (2009). Modeling of transport, chemical and electrochemical phenomena in a cathode-supported SOFC. (external link)
• Ilea, Catalin Grigore; Kosinski, Pawel Jan; Hoffmann, Alex Christian (2009). Jet-vortex interaction: a numerical study. (external link)
• Suciu, Crina S.; Erichsen, Egil Severin; Hoffmann, Alex Christian et al. (2009). Modified sol-gel method used for obtaining SOFC electrolyte materials. (external link)
• Ho, Thinh Xuan; Kosinski, Pawel Jan; Hoffmann, Alex Christian et al. (2009). Detailed modeling of an anode-supported solid oxide fuel cell using a fully three-dimensional approach. (external link)
• Suciu, Crina S.; Vik, Arild; Goga, Firuta et al. (2009). Physico-chemical characterization of 8ysz nanoparticles by modified sol-gel method. (external link)
• Kosinski, Pawel; Kosinska, Anna Dorota; Hoffmann, Alex Christian (2009). Simulation of solid particles behaviour in a driven cavity flow. (external link)
• Kosinski, Pawel Jan; Kosinska, Anna; Hoffmann, Alex Christian (2009). Simulation of solid particles behaviour in a driven cavity flow. (external link)
• Asserson, Ragnhild Brandsæter; Hoffmann, Alex Christian; Høiland, Sylvi et al. (2009). Interfacial tension measurement of freon hydrates by droplet deposition and contact angle measurements. (external link)
• Pisarev, Gleb; Hoffmann, Alex Christian; Peng, Weiming et al. (2009). Large eddy simulation of the vortex end in reverse-flow centrifugal separators. (external link)
• Ho, Thinh Xuan; Kosinski, Pawel Jan; Hoffmann, Alex Christian et al. (2008). Numerical modeling of solid oxide fuel cells. (external link)
• Suciu, Crina S.; Hoffmann, Alex Christian; Vik, Arild et al. (2008). Effect of calcination conditions and precursor proportions on the properties of YSZ nanoparticles obtained by modified sol-gel route. (external link)
• Suciu, Crina S.; Hoffmann, Alex Christian; Dorolti, Eugen et al. (2008). NiO/YSZ nanoparticles obtained by new sol-gel route. (external link)
• Austrheim, Trond; Gjertsen, Lars H.; Hoffmann, Alex Christian (2008). Experimental investigation of the performance of a large-scale scrubber operating at elevated pressure on live natural gas. (external link)
• Austrheim, Trond; Gjertsen, Lars H.; Hoffmann, Alex Christian (2008). An experimental investigation of scrubber internals at conditions of low pressure. (external link)
• Ilea, Catalin Grigore; Kosinski, Pawel Jan; Hoffmann, Alex Christian (2008). Three-dimensional simulation of a dust lifting process with varying parameters. (external link)
• Ilea, Catalin Grigore; Kosinski, Pawel Jan; Hoffmann, Alex Christian (2008). Simulation of a dust lifting process with rough walls. (external link)
• Balakin, Boris V; Hoffmann, Alex Christian; Kosinski, Pawel Jan et al. (2008). Eulerian-Eulerian simulation of sedimentation of uniformly-sized, non-Brownian spheres in viscous fluids. (external link)
• Ilea, Catalin Grigore; Kosinski, Pawel Jan; Hoffmann, Alex Christian (2008). Influence of collision algorithm parameters on statistical results of dust lifting simulations. (external link)
• Ho, Thinh Xuan; Kosinski, Pawel Jan; Hoffmann, Alex Christian et al. (2008). Numerical modelling of a solid oxide fuel cells: a charge diffusion-based model. (external link)
• Gottschalk, Timo; Dehling, Herold G.; Hoffmann, Alex Christian (2008). Multiphase stochastic model for fluidized beds. (external link)
• Suciu, Crina S.; Hoffmann, Alex Christian; Kosinski, Pawel Jan (2008). Obtaining YSZ nanoparticles by the sol-gel method with sucrose and pectin as organic precursors. (external link)
• Kosinski, Pawel; Kosinska, Anna Dorota; Hoffmann, Alex Christian (2007). Consequences of particle-particle interaction in a 2-D square domain. (external link)
• Kosinski, Pawel Jan; Hoffmann, Alex Christian (2007). An Eulerian-Lagrangian model for dense particle clouds. (external link)
• Peng, Weiming; Hoffmann, Alex Christian; Dries, Huub et al. (2007). Reverse-flow centrifugal separators in parallel: Performance and flow pattern. (external link)
• Dehling, Herold G.; Dechsiri, Chutima; Gottschalk, Timo et al. (2007). A stochastic model for mixing and segregation in slugging fluidized beds. (external link)
• Ho, Thinh Xuan; Kosinski, Pawel Jan; Hoffmann, Alex Christian et al. (2007). Numerical Simulation of Electrochemical and Transport Processes in Solid Oxide Fuel Cells. (external link)
• Austrheim, Trond; Gjertsen, Lars H.; Hoffmann, Alex Christian (2007). Re-entrainment correlations for demisting cyclones acting at elevated pressures on a range of fluids. (external link)
• Ilea, Catalin Grigore; Kosinski, Pawel Jan; Hoffmann, Alex Christian (2007). Dust Lifting Simulations with Particles of Distributed Sizes. (external link)
• Austrheim, Trond; Gjertsen, Lars H.; Hoffmann, Alex Christian (2007). Is the Souders-Brown equation sufficient for scrubber design? An experimental investigation at elevated pressure with hydrocarbon fluids. (external link)
• Suciu, Crina S.; Hoffmann, Alex Christian; Vik, Arild et al. (2007). Fuel cells and nanoparticles. (external link)
• Kosinski, Pawel Jan; Kosinska, Anna; Hoffmann, Alex Christian (2007). Consequences of particle-particle interaction in a 2D square domain. (external link)
• Schaafsma, Stefan H.; Marx, Tom; Hoffmann, Alex Christian (2006). Investigation of the particle flowpattern and segregation in tapered fluidized bed granulators. (external link)
• Spoel, D van der; Wensink, Erik Johannes; Hoffmann, Alex Christian (2006). Lifting a wet glass from a table: A microscopic picture. (external link)
• Hoffmann, Alex Christian; Peng, Weiming; Dries, H et al. (2006). Effect of pressure recovery vanes on the performance of a swirl tube, with emphasis on the flow pattern and separation efficiency. (external link)
• Jacobsson, Siri; Austrheim, Trond; Hoffmann, Alex Christian (2006). Experimental and computational fluid dynamics investigation of the flow in and around once-through swirl tubes. (external link)
• Schaafsma, SH; Vonk, P; Kossen, NWF et al. (2006). A model for the spray zone in early-stage fluidized bed granulation. (external link)
• Kosinski, Pawel Jan; Hoffmann, Alex Christian (2006). An investigation of the consequences of primary dust explosions in interconnected vessels. (external link)
• Gottschalk, T; Dehling, HG; Hoffmann, Alex Christian (2006). Danckwerts' law for mean residence time revisited. (external link)
• Suciu, Crina S.; Gagea, L.ucia; Hoffmann, Alex Christian et al. (2006). Sol-gel production of zirconia nanoparticles with a new organic precursor. (external link)
• Kosinski, Pawel Jan; Hoffmann, Alex Christian (2005). Dust explosions in connected vessels: Mathematical modelling. (external link)
• Dechsiri, Chutima; Zwan, EA Van der; Dehling, Herold G. et al. (2005). Dispersion of particle pulses in fluidized beds measured by positron emission tomography. (external link)
• Dechsiri, Chutima; Ghione, A; Wiel, F van de et al. (2005). Positron emission tomography applied to fluidization engineering. (external link)
• Hoffmann, Alex Christian; Dechsiri, Chutima; Wiel, F van de et al. (2005). PET investigation of a fluidized particle: spatial and temporal resolution and short term motion. (external link)
• Kosinski, Pawel Jan; Hoffmann, Alex Christian; Klemens, R. (2005). Dust lifting behind shock waves: comparison of two modelling techniques. (external link)
• Ritherdon, J; Dechsiri, Chutima; Jones, AR et al. (2005). On suitability of novel fluidised bed technique for separation of metallic powders during commercial powder metallurgical processing. (external link)
• Peng, Weiming; Hoffmann, Alex Christian; Dries, Huub W.A. et al. (2005). Neutrally boyant tracer in gas cleaning equipment. A case study. (external link)
• Peng, Weiming; Hoffmann, Alex Christian; Dries, Huub et al. (2005). Experimental study of the vortex end in centrifugal separators: The nature of the vortex end. (external link)
• Kosinski, Pawel Jan; Hoffmann, Alex Christian (2005). Modelling of dust lifting using the Lagrangian approach. (external link)
• Kosinski, Pawel Jan; Hoffmann, Alex Christian (2005). Mathematical modelling of dust explosions in interconnected vessels. (external link)
• Peng, Weiming; Hoffmann, Alex Christian; Dries, Huub (2004). Separation characteristics of swirl-tube dust separators. (external link)
• Cioffi, Mario; Ganzeveld, Klazien J.; Hoffmann, Alex Christian et al. (2004). A rheokinetic study of bulk free radical polymerization performed with a helical barrel rheometer. (external link)
• Wensink, Erik Johannes; Hoffmann, Alex Christian; Maaren, P.J. van et al. (2003). Dynamic properties of water/alcohol mixtures studied by computer simulation. (external link)
• Biggs, C.A.; Sanders, C.; Scott, A.C. et al. (2003). Coupling granule properties and granulation rates in high-shear granulation. (external link)
• Bosma, J.C.; Hoffmann, Alex Christian (2003). On the capacity of continuous powder classification in a gas fluidized bed with horizontal baffles. (external link)
• Reuvekamp, R.J.; Ray, M.B.; Hoffmann, Alex Christian (2002). Deposition of Fine Powder in Horizontal Pipelines and Bends. (external link)
• Peng, W.; Hoffmann, Alex Christian; Boot, P.J.A.J. et al. (2002). Flowpattern in Reverse Flow Centrifugal Separators. (external link)
• Cioffi, M.; Ganzeveld, K.J.; Hoffmann, Alex Christian et al. (2002). Rheokinetics of linear polymerization. A literature review. (external link)
• Peng, W.; Boot, P.J.A.J.; Hoffmann, Alex Christian et al. (2001). Flow in the inlet region in tangential inlet cyclones. (external link)
• Cioffi, M.; Janssen, L.P.B.M.; Hoffmann, Alex Christian (2001). Instabilities in free radical polymerization. (external link)
• Cioffi, M.; Janssen, L.P.B.M.; Hoffmann, Alex Christian (2001). Reducing the gel effect in free radical polymerization. (external link)
• Cioffi, M.; Hoffmann, Alex Christian; Janssen, L.P.B.M. (2001). Rheokinetics and the influence of shear rate on the Trommsdorff (gel) effect during free radical polymerization. (external link)
• Hoffmann, Alex Christian; Groot, M. de; Peng, W. et al. (2001). Advantages and risks in increasing cyclone separator length. (external link)

Academic lecture

• Chang, Yu-Fen; Balakin, Boris; Hoffmann, Alex Christian (2024). Investigating miniature hydrocyclones for enhanced bioprocessing efficiency. (external link)
• Chang, Yu-Fen; Balakin, Boris; Hoffmann, Alex Christian (2023). Measuring multiphase flow in miniature devices using PEPT. (external link)
• Hoffmann, Alex Christian; Fonnes, Daniel; Chang, Yu-Fen (2023). Flowpattern in hydrocyclones: numerical simulations with experimental verification. (external link)
• Chang, Yu-Fen; Balakin, Boris; Hoffmann, Alex Christian (2023). Advancements in Positron Emission Particle Tracking: Unveiling Complex Flow Patterns in Miniature Multiphase Flow Devices. (external link)
• Hoffmann, Alex Christian; Chang, Yu-Fen (2023). Lagrangian particle tracking in confined, strongly swirling flow in hydrocyclones: comparison of large-eddy simulations with experiment. (external link)
• Balakin, Boris; Hellestø, Aslak Solvang; Kosinski, Pawel Jan et al. (2021). Multiphase CFD Models of Agglomeration and Deposition in Hydrate Slurries. (external link)
• Hoffmann, Alex Christian (2019). PEPT at the University of Bergen. (external link)
• Dries, Huub W.A.; Hoffmann, Alex Christian (2019). Synergy from a University / Industry Partnership Leading to Improved Gas/Particulate-Separators. (external link)
• Ghaffari, Maryam; Skjold, Trygve; Mauri, Lorenzo et al. (2018). Turbulence modulation modelling in the CFD simulator FLACS-DustEx. (external link)
• Ghaffari, Maryam; Skjold, Trygve; Eckhoff, Rolf Kristian et al. (2018). Effect of particle size on burning velocity calculation in FLACS-DustEx. (external link)
• Ghaffari, Maryam; Mauri, Lorenzo; Skjold, Trygve et al. (2017). Improved modelling of particle-laden flow in the CFD simulator FLACS-DustEx. (external link)
• Balakin, Boris; Adamsen, Tom Christian Holm; Chang, Yu-Fen et al. (2016). Non-invasive studies of multiphase flow in process equipment. Positron emission particle tracking technique. (external link)
• Balakin, Boris V; Kosinski, Pawel Jan; Kartushinsky, Alexander et al. (2016). CFD-PBM modelling of agglomeration and deposition in petroleum industry. (external link)
• Hoffmann, Alex Christian; Karakitsiou, Stamatina; Holst, Bodil (2016). Exact solution for the axial pressure drop in cylindrical isothermal channels with Maxwell slip flow. (external link)
• Middha, Prachi; Balakin, Boris V; Hoffmann, Alex Christian et al. (2013). PEPT and CFD investigation of lean-phase pneumatic conveying through a bend. (external link)
• Balakin, Boris V; Hoffmann, Alex Christian; Kosinski, Pawel Jan (2013). Restitution of momentum during interparticle collision affected by liquid bridge. (external link)
• Chang, Yu-Fen; Adamsen, Tom Christian; Hoffmann, Alex Christian (2012). Using a PET camera to track individual phases in process equipment with high temporal and spatial resolutions: Algorithm development. (external link)
• Chang, Yu-Fen; Skorpen, Åshild; Hoffmann, Alex Christian (2012). Detecting anomalies in the separation process in a hydrocyclone using a medical PET scanner. (external link)
• Chang, Yu-Fen; Ilea, Catalin Grigore; Aasen, Øystein Lee et al. (2011). Particle trajectories in a hydrocyclone measured by PEPT. (external link)
• Kosinski, Pawel Jan; Hoffmann, Alex Christian (2011). Particle-particle agglomeration and use of the hard-sphere model. (external link)
• Tikkanen, Hanna-Mari Viktoria; Suciu, C.; Wærnhus, I et al. (2011). Fabrication and cell performance of anode-supported SOFC made of in-house produced NiO-YSZ nano-composite powder. (external link)
• Sæthre, Bjørn Steen; Hoffmann, Alex Christian; Spoel, David van der (2011). Order parameters for detection and demarkation of interfaces in hydrate-fluid and ice-fluid systems. (external link)
• Chang, Yu-Fen; Pisarev, Gleb; Hoffmann, Alex Christian (2011). PEPT: an invaluable tool for 3-D particle tracking and CFD simulation verification in hydrocyclone studies. (external link)
• Ilea, Catalin Grigore; Kosinski, Pawel Jan; Hoffmann, Alex Christian (2010). Ordering of monosized particles during simulations of a fluid-solid flow under shear. (external link)
• Suciu, C. S.; Hoffmann, Alex Christian; Wærnhus, I (2010). A flexible, cost-effective production method for high-quality nanoparticles. (external link)
• Suciu, C.; Hoffmann, Alex Christian; Dorolti, E. et al. (2010). Properties of 3-15 mol% YSZ materials. (external link)
• Chang, Yu-Fen; Hoffmann, Alex Christian; Ilea, Catalin Grigore et al. (2010). Particle flow in a hydrocyclone investigated by radioactive particle tracking. (external link)
• Ho, Thinh Xuan; Kosinski, Pawel Jan; Hoffmann, Alex Christian et al. (2009). Fully three-dimensional modeling of Solid Oxide Fuel Cells. (external link)
• Balakin, Boris V; Hoffmann, Alex Christian; Kosinski, Pawel Jan (2009). Computational fluid dynamic model of gas hydrate deposition in a turbulent flow. (external link)
• Sæthre, Bjørn Steen; Hoffmann, Alex Christian (2008). Surface-fluctuations on clathrate hydrate structure I and II slabs in selected environments. (external link)
• Ho, Thinh Xuan; Kosinski, Pawel Jan; Hoffmann, Alex Christian et al. (2008). Numerical study of an SOFC with direct internal reforming using charge diffusion-based model. (external link)
• Barth, Tanja; Talatori, Shiva; Erstad, Kristin et al. (2008). Hydrates in petroleum production-assessment of plug risk. Project HYPERION enters it s third and final year. (external link)
• Suciu, Crina S.; Mæland, Dagfinn; Hoffmann, Alex Christian et al. (2008). The Use of Nanoparticles for Solid Oxide Fuel Cell Components. (external link)
• Suciu, Crina S.; Mæland, Dagfinn; Hoffmann, Alex Christian et al. (2008). Priorities in Material Design for Solid Oxide Fuel Cells -With Emphasis on the Anode and the Electrolyte. (external link)
• Suciu, Crina S.; Hoffmann, Alex Christian; Goga, A. et al. (2008). NiO nanoparticles for SOFC anodes. Comparison of two synthesis methods. (external link)
• Kosinski, Pawel; Kosinska, Anna Dorota; Hoffmann, Alex Christian (2007). Numerical simulation of particle-flow interactions: formation of agglomerates. (external link)
• Kosinski, Pawel Jan; Kosinska, Anna; Hoffmann, Alex Christian (2007). Numerical simulation of particle-flow interactions: formation of agglomerates. (external link)
• Ilea, Catalin Grigore; Kosinski, Pawel Jan; Hoffmann, Alex Christian (2007). Simulation of a dust lifting process in a two-dimensional domain with rough walls. (external link)
• Peng, Weiming; Jacobsson, Siri; Hoffmann, Alex Christian (2007). Neutrally buoyant tracer in gas cleaning equipment. A case study. (external link)
• Kosinski, Pawel Jan; Kosinska, Anna; Hoffmann, Alex Christian (2006). Fluid-particle flows in a driven cavity. (external link)
• Suciu, Crina Silvia; Hoffmann, Alex Christian (2006). Sol-Gel Production of ZrO2 and YSZ with a New Organic Precursor. (external link)
• Ilea, Catalin Grigore; Kosinski, Pawel Jan; Hoffmann, Alex Christian (2006). 3-D Eulerian-Lagrangian Simulation of Dust Lifting. (external link)
• Ho, Thinh Xuan; Kosinski, Pawel Jan; Hoffmann, Alex Christian (2006). Direct numerical simulation of particle-fluid flow: The state-of-the-art. (external link)
• Hoffmann, Alex Christian (2005). The physics of cyclones. (external link)
• Kosinski, Pawel Jan; Hoffmann, Alex Christian (2004). Mathematical modelling of dust explosions in interconnected vessels. (external link)
• Hoffmann, Alex Christian (2003). Brændselcellekursus. (external link)
• Hoffmann, Alex Christian; Dechsiri, C.; Wiel, F. van de et al. (2003). Tracking individual particles in a fluidized bed using a medical PET-Camera. (external link)
• Dechsiri, C.; Wiel, F. van de; Dehling, H.G. et al. (2003). Positron emission tomography applied to fluidization engineering. (external link)
• Hoffmann, Alex Christian (2002). Gas Cyclone Separators -- Potential and Limitations. (external link)
• Hoffmann, Alex Christian (2002). Gas Cyclone Separators -- Potential and Limitations. (external link)
• Apol, M.E.F.; Berendsen, H.J.C.; Mark, A.E. et al. (2002). Interparticle Forces for DEM by MD Simulations. (external link)
• Dechsiri, C.; Dehling, H.G.; Hoffmann, Alex Christian (2002). Stochastic Model for Fluidization. (external link)
• Hoffmann, Alex Christian (2002). Brenselscelleteknologi. (external link)
• Wright, P.C.; Makkawi, Y.T.; Meeyoo, V. et al. (2002). Observation of Cross-Sectional Non-Uniformity in Fluidized Beds Using Two Different Imaging Techniques. (external link)
• Bosma, J.C.; Hoffmann, Alex Christian (2002). Feasibility Study of Particle Classification in Fluidized Beds with Internal Baffles. (external link)
• Dechsiri, C.; Zwan, E. van der; Bosma, J.C. et al. (2002). Positron Emission Tomography (PET) for Fluidization. (external link)
• Biggs, C.A.; Sanders, C.F.W.; Scott, A.C. et al. (2001). Coupling granule properties and granulation rates in high-shear granulation. (external link)
• Dechsiri, C.; Bosma, J.C.; Hoffmann, Alex Christian et al. (2001). A Stochastic Model for Particle Mixing and Segregation in Fluidized Beds with Baffles. (external link)
• Peng, W.; Hoffmann, Alex Christian; Boot, P.J.A.J. et al. (2001). Determining the best modelling assumptions for cyclones and swirl tubes by CFD and LDA. (external link)
• Hoffmann, Alex Christian (2001). Hvordan levere kompetence til gasindustrien?. (external link)
• Torres, CA; Hoffmann, Alex Christian; Kloss-Quiroga, B et al. (1999). Towards an European Masters in International: the experience of TropEdEurope since 1996. (external link)

Article in business/trade/industry journal

• Gundersen, Ted Ørjan Seim; Dupoiron, Marine; Moënne-Loccoz, Victor et al. (2022). Commissioning a New Multiphase Pump Visualization Test Rig to Investigate the Internal Flow Field and its Connection with Pump Performance. (external link)

Poster

• Ghaffari, Maryam; Skjold, Trygve; Hoffmann, Alex Christian et al. (2019). Effect of particle size on burning velocity calculation in FLACS-DustEx. (external link)
• Ghaffari, Maryam; Hoffmann, Alex Christian; Skjold, Trygve et al. (2019). A review of the effect of particle size and particle concentratyion on burning velocity calculation in FLACS-DustEx: a simplified approach. (external link)
• rubio, diego; Suciu, Crina S.; waernhus, Ivar et al. (2016). Tape Casting of Lanthanum Chromite. (external link)
• Kosinski, Pawel Jan; Balakin, Boris V; Middha, Prachi et al. (2013). Heat conduction between colliding particles. (external link)
• Middha, Prachi; Balakin, Boris V; Hoffmann, Alex Christian et al. (2013). PEPT investigation of pneumatic conveying through a bend. (external link)
• Marthinussen, Svein-Arne; Chang, Yu-Fen; Balakin, Boris V et al. (2013). Hydrocyclones working on highly viscous liquids. (external link)
• Ghaffari, Maryam; Chang, Yu-Fen; Balakin, Boris V et al. (2012). Studying Particle Motion Trajectories in a Pipe over an Obstacle Using PEPT and CFD. (external link)
• Tikkanen, Hanna-Mari Viktoria; Suciu, C.; Wærnhus, I et al. (2010). Electrophoretic deposition of 8YSZ on cathode substrate. (external link)
• Suciu, Crina S.; Wærnhus, I; Tikkanen, Hanna et al. (2009). Nanoparticlebased, scandium-doped materials for SOFC electrolytes; production and performance. (external link)
• Suciu, C.; Hoffmann, Alex Christian; Vik, A. et al. (2008). Optimizing sol-gel produced NiO nanopowder as precursor for SOFC anodes. (external link)
• Ho, Thinh Xuan; Kosinski, Pawel Jan; Hoffmann, Alex Christian et al. (2008). Numerical study of a solid oxide fuel cell with direct internal methane reforming. (external link)
• Mæland, Dagfinn; Suciu, Crina S.; Wærnhus, Ivar et al. (2008). Sintering properties of 4YSZ nanoparticles and ionic impedance of the resulting materials. (external link)
• Suciu, C.; Mæland, D.; Hoffmann, Alex Christian et al. (2007). SOFC components from nano-particles: particle manufacture, sintering and characterization. (external link)
• Lunev, Maxim; Hoffmann, Alex Christian; Silalahi, Sumihar (2007). Solid Oxide Fuel Cell Com- ponents Studied by Molecular Dynamics. (external link)
• Suciu, C.; Vik, A.; Hoffmann, Alex Christian (2007). Nanoparticles for solid oxide fuel cell anodes. (external link)
• Ilea, Catalin Grigore; Kosinski, Pawel Jan; Hoffmann, Alex Christian (2006). Numerical simulation of dust lifting behind shock waves in a three-dimensional computational domain. (external link)
• Kosinski, Pawel Jan; Kosinska, Anna; Hoffmann, Alex Christian (2006). Simulation of solid particles, behaviour in a driven cavity flow. (external link)
• Wensink, Erik Johannes; Hoffmann, Alex Christian; Maaren, P.J. et al. (2004). Extensive simulation studies of alcohol in water. (external link)
• Kosinski, Pawel Jan; Hoffmann, Alex Christian; Klemens, R. (2004). Dust lifting modelling using the Eulerian and Lagrangian approaches. (external link)

Doctoral dissertation

• Karakitsiou, Stamatina; Hoffmann, Alex Christian; Holst, Bodil (2018). Experimental and theoretical study of pressure-driven transport of gases in micro and nanopores. (external link)
• Chang, Yu-Fen; Hoffmann, Alex Christian (2016). Study of the flow in a hydrocyclone using positron emission particle tracking and computational fluid dynamics simulation. (external link)
• Tveit, Jesper; Hoffmann, Alex Christian; Småbrekke, Arne et al. (2016). A Nonlinear Differential Equation Solver With Potential Application to Pelton Turbines. (external link)
• Sæthre, Bjørn Steen; Hoffmann, Alex Christian; Spoel, David van der (2015). Interfacial free energies in gas-hydrate/fluid interfaces. (external link)
• Pisarev, Gleb; Hoffmann, Alex Christian; Dijkstra, Henk Anton et al. (2011). Experimental and numerical study of the End of the Vortex phenomenon. (external link)
• Balakin, Boris V; Kosinski, Pawel Jan; Hoffmann, Alex Christian (2010). Experimental and theoretical study of the flow, aggregation and. (external link)
• Ho, Thinh Xuan; Hoffmann, Alex Christian (2009). Modeling of Transport, Chemical and Electrochemical Processes in Solid Oxide Fuel Cells. (external link)
• Ilea, Catalin Grigore; Hoffmann, Alex Christian (2008). Numerical Simulations of Dust Lifting. (external link)
• Ilea, Crina Silvia; Hoffmann, Alex Christian (2007). New Materials for Solid Oxide Fuel Cells Based on Nanoparticles. (external link)
• Austrheim, Trond; Hoffmann, Alex Christian (2006). Experimental Characterization of High-Pressure Natural Gas Scrubbers. (external link)
• Wensink, Erik Johannes; Hoffmann, Alex Christian (2005). Molecular Simulations of Complex Liquids and Confined Systems. (external link)
• Dechsiri, Chutima; Hoffmann, Alex Christian; Dehling, Herold G. (2004). Particle Transport in Fluidized Beds; Experiments and Stochastic Models. (external link)

Lecture

• Ghaffari, Maryam; Skjold, Trygve; Wingerden, Kees van et al. (2016). A model validation framework for the dust explosion simulator FLACS-DustEx: Challenges, limitations and possibilities. (external link)
• Suciu, C. S.; Tikkanen, Hanna-Mari Viktoria; Ho, Thinh Xuan et al. (2010). Hydrogenaktiviteter på Universitetet i Bergen. (external link)
• Hoffmann, Alex Christian (2009). Fysikkens rolle for energispørgsmål. (external link)
• Suciu, C. S.; Mæland, Dagfinn; Hoffmann, Alex Christian et al. (2008). Research in materials for solid oxide fuel cells. (external link)
• Hoffmann, Alex Christian (2005). Innen den overskuelige framtid vil verdens energiforbuk mangedoplet, hvilke utfordringer byr det på? Finnes det plausible løsninger?. (external link)
• Hoffmann, Alex Christian (2005). Energy for the future, wherefrom?. (external link)
• Hoffmann, Alex Christian (2005). Energikilder for det næste århundrede. (external link)
• Hoffmann, Alex Christian (2001). Brændselsceller, en anden slags elektrokemi. (external link)

Academic chapter/article/Conference paper

• Suciu, Crina S.; Dorolti, E.; Hoffmann, Alex Christian (2015). Properties of xYSZ nanoparticles and pellets with x varying from 1 to 15%. (external link)
• Karakitsiou, Stamatina; Eder, Sabrina Daniela; Holst, Bodil et al. (2015). Design, development and testing of apparatus to study gas diffusion in nanochannels. (external link)
• Hoffmann, Alex Christian (2011). Stochastic Modeling Techniques in Powder Technology. (external link)

Masters thesis

• Pletten, Sandra; Hoffmann, Alex Christian (2014). An Experimental and Theoretical Study of Transfer Rates of Phenols from Caustic to Crude Oil. (external link)
• Romsloe, Alise; Hoffmann, Alex Christian (2014). Cyclonic oil-water separator with an overflow system. (external link)
• Balakin, Boris V; Hellestø, A.R.; Hoffmann, Alex Christian (2014). A study of solid particle agglomeration - particle by particle. (external link)
• Eikill, Vegard; Hoffmann, Alex Christian (2010). Characterization of the anode and cathode materials for solid oxide fuel cells (SOFCs). (external link)
• Gjerde, Vidar I.; Hoffmann, Alex Christian (2010). The Natural Vortex Length in Centrifugal Separators. (external link)
• Aasen, Øystein Lee; Hoffmann, Alex Christian (2010). Experimental investigation of particle trajectory through an hydrocyclone using a Positron Emission Tomography (PET) scanner. (external link)
• Dahl, Maren A.; Hoffmann, Alex Christian (2010). New experimental techniques to study the adhesion to various solid surfaces of hydrate-relevant droplets and particles. (external link)
• Thormodsæter, Ole André; Hoffmann, Alex Christian (2008). Production and Characterization of YSZ Nanoparticles and Thin Films forPlanar Ceramic SOFC Electrolytes. (external link)
• Mæland, Dagfinn; Hoffmann, Alex Christian (2008). Sintering and Impedance Spectroscopy Characterisation of Nanoparticle-based Functional Materials for Solid Oxide Fuel Cells. (external link)
• Pedersen, Håkon; Hoffmann, Alex Christian (2008). Formation, Particle Size Distribution and Flow Dependence of Freon (R11) Hydrates in Multiphase Flow Systems. (external link)
• Kilinc, Ziya; Hoffmann, Alex Christian (2008). Formation and Particle Size Distribution of Cyclopentane Hydrates in a Multiphase Flow System. (external link)
• Asserson, Ragnhild; Hoffmann, Alex Christian (2007). Interfacial tension measurements of freon hydrates by means of droplet deposition and contact angle measurements. (external link)
• Lie, Roger; Hoffmann, Alex Christian (2007). Horizontal particle transport in a flowing liquid. (external link)
• Jacobsson, Siri; Hoffmann, Alex Christian (2004). Single Phase Characterization of the Verlaan Cyclone. (external link)
• Kvinnesland, Eli; Hoffmann, Alex Christian (2004). Single-phase characterization of the inlet arrangement schoepentoeter. (external link)
• Christensen, Dorthe; Hoffmann, Alex Christian (2004). Single-phase characterization of the new open spinlet arrangement. (external link)
• Sæthre, Bjørn S.; Hoffmann, Alex Christian (2004). Interfacial area determination by chemically enhanced extraction with new adaptations for use in continuous flow rigs. (external link)

Errata

• Kosinski, Pawel Jan; Hoffmann, Alex Christian (2014). Extended hard-sphere model and collisions of cohesive particles (vol 84, 031303, 2011). (external link)

Reader opinion piece

• Balakin, Boris V; Kosinski, Pawel Jan; Hoffmann, Alex Christian (2011). Untitled Reply. (external link)

Report

• Amundsen, P. A.; Hoffmann, Alex Christian; Olsson, G. (2009). Søknad om akkreditering av Doktorgrad i prosess,-energi- og automatiseringsteknikk ved Høgskolen i Telemark: Rapport fra sakkyndig komie. (external link)
• Peng, Weiming; Hoffmann, Alex Christian; Foo, Kee-Khoon (2004). Visualization of the vortex end in the Shell swirl tube Controlling the vortex end in the Shell swirl tube Controlling the vortex end and crosstalk, and finding the optimal geometry for the Shell TSS swirl-deck. (external link)

Academic monograph

• Dehling, Herold G.; Gottschalk, Timo; Hoffmann, Alex Christian (2007). Stochastic modelling in process technology. (external link)
• Hoffmann, Alex Christian; Stein, Louis E. (2007). Gas cyclones and swirl tubes: principles, design and operation. (external link)
• Hoffmann, Alex Christian; Stein, Louis E. (2002). Cyclones and Swirl Tubes, Principles, Design and Operation. (external link)

Feature article

• Hoffmann, Alex Christian (2005). Fremtidens energi. (external link)

Book review

• Hoffmann, Alex Christian (2001). Book review, Transport Phenomena by W.J. Beek et al. (external link)

See a complete overview of publications in Cristin.