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Multiphase systems---Refereed articles

 
1991   1992   1993   1994   1995   1996   1997   1998   1999   2000   2001   2002   2003   2004   2005   2006   2007   2008   2009   2010   2011   2012    
 
 
1991:
 
Clift, R., Ghadiri, M. and Hoffmann, A.C. "A Critique of Two Models for Cyclone Performance", AIChE Journal 37 (1991), 285--289.
 
Hoffmann, A.C. and Romp, E.J. "Segregation in a Fluidised Powder of a Continuous Size Distribution", Powder Technol. 66 (1991), 119--126.
 
Hoffmann, A.C., Arends, H. and Sie, H. "An Experimental Investigation Elucidating the Effect of Solid Loading on Cyclone Performance" Filtration and Separation 28 (1991), 188--193.
 
Hoffmann, A.C. and Grommers, H.E. "Aspects of the Numerical Modelling of the Flowpattern in Gas Cyclones", Proceedings Filtech Europa '91, Karlsruhe, october 1991, 569--582.
 
 
1992:
 
Hoffmann, A.C., van Santen, A., Allen, R.W.K. and Clift, R. "Effects of Geometry and Solid Loading on the Performance of Gas Cyclones" Powder Technology, 70 (1992), 83--91.
 
 
1993:
 
Hoffmann, A.C., Janssen, L.P.B.M and Prins, J. "Particle Segregation in Fluidised Binary Mixtures" Chem. Eng. Sci. 48 (1993), 1583--1592.
 
 
1994:
 
Hartholt, G.P., Hoffmann, A.C., Janssen, L.P.B.M, Hoogstraten, H.W. and Moes, J.H. "Finite Element Calculations Of Flow Past A Spherical Bubble Rising On The Axis Of A Cylindrical Tube" Z angew Math Phys 45 (1994) 733--745.
 
Hoffmann, A.C., Hartholt, G.P. and Yates, J.G. "On the rheology of the dense phase of a gas fluidised bed" Chem. Eng. Commun. 130 (1994), 31--44.
 
Marring, E., Hoffmann, A.C. and Janssen, L.P.B.M. "The effect of vibration on the fluidization behaviour of some cohesive powders" Powder Technology 79 (1994), 1--10.
 
Hoffmann, A.C., Finkers, H.J. and Seegers, J.A. "Predicting the behaviour of industrial powders in precision handling equipment" Proceedings of the 1. International Particle Technology Forum in Denver, Colorado, august 17--19, 1994.
 
Hartholt, G.P., Hoffmann, A.C. and Janssen, L.P.B.M. "Visual observation of individual particles in fluidised beds" Proceedings of the 1. International Particle Technology Forum in Denver, Colorado, august 17--19, 1994.
 
 
1995:
 
Hoffmann, A.C. and van den Bogaard, H.A. "A numerical investigation of bubbles rising at intermediate Reynolds and large Weber numbers" Ind. Eng. Chem. Res. 34 (1995), 366--372.
 
Hoffmann, A.C. and Finkers,H.J. "A relation for the void fraction of randomly packed particle beds". Powder Technol. 82 (1995), 197--203. Abstract
 
Hartholt, G.P., Hoffmann, A.C. and Janssen, L.P.B.M., "The influence of the gas relative humidity on the mixing and segregation in gas-solid fluidised beds". Proceedings of the 1995 IChemE Research Event/First European Conference, Edinburgh, Jan. 1995, Chameleon Press, London, p.862--864.
 
Marring, E., Hoffmann, A.C. and Janssen, L.P.B.M. "A study of the discharge of cohesive powders under simultaneous acration and vibration" Particulate Science and Technology 13, (1995), 7--21.
 
Hartholt, G.P., R. la Riviere, Hoffmann, A.C. and Janssen, L.P.B.M. "Separating Solids from a Mixture in a Gas-Solid Fluidised Bed" International patent application PCT/NL95/00243 submitted by Verenigde Octrooibureaux, Groningen, Den Haag July, 1995.
 
Hoffmann, A.C., de Jonge, R., Arends, H. and Hanrats, C. "Evidence of the 'Natural Vortex Length' and its Effect on the Separation Efficiency of Gas Cyclones", Filtration and Separation, (1995), 799--804.
 
Hartholt, G.P., Hoffmann, A.C., Kamphuis, A.J. and Janssen, L.P.B.M. "Avoiding demixing and defluidisation in gas fluidised bed reactors" Proceedings of the 1995 AIChE Annual Meeting, Florida, Nov. 12--17, 1995.
 
Hartholt, G.P., Hoffmann,A.C. and Janssen, L.P.B.M. "Direct visual observation of individual particles in gas and liquid fluidised beds" Powder Technol. 88 (1995), 341--345.
 
Ray, M.B., Luning, P.E., Hoffmann, A.C., Plomp, A. and Beumer, M.I.L., "Improving the efficiency of industrial scale cyclones for particles less than five micron" Proceedings of The Engineering Foundation Conference on Particle Science and Technology in the 21st century, Pune, India 17--21 Dec. 1995.
 
 
1996:
 
Meetsma, W.A., Hoffmann, A.C. and Cox, E.L. "Gravity-driven thickening in a long vertical tube" Chem. Eng. Sci. 51 (1996), 4279--4288. Abstract
 
la Riviere, R. Hartholt, G.P., Hoffmann, A.C. and Janssen, L.P.B.M. "Methods for the determination of particle residence time distribution in continuous gas fluidised beds." IChemE Symp. Ser. 140 (1996), 283--294.
 
Hoffmann, A.C., de Groot, M. and Hospers, A. "The effect of the dust collection system on the flowpattern and separation efficiency of a gas cyclone" Can. J. Chem. Eng. 74 (1996), 464--470.
 
Hartholt, G.P., Hoffmann, A.C., Kamphuis, A.J. and Janssen, L.P.B.M. "Avoiding demixing and defluidisation in gas fluidised bed reactors" AIChE Symp. Ser. 92 (1996), 15--19.
 
Hoffmann, A.C., Finkers, H.J. and Seegers, J.A. "Relations between particle and bulk properties for some industrial powders" Part. Part. Syst. Charact. 13 (1996), 354--361.
 
Ray, M.B., Tien, C., Hoffmann, A.C. and Beumer, M.I.L., "Numerical simulation of the swirl flow pattern and grade efficiencies in gas-solid separators" Proceedings of the Asia-Pacific Conference on Sustainable Energy and Environmental Technology Singapore, June 1996.
 
 
1997:
 
Jonker, G. H., Hoffmann, A.C. and Beenackers, A.A.C.M. "Classification mechanism of the chute, a liquid-phase remover of fines in the micron range from a batch of porous particles" Powder Technol. 90 (1997), 251--258.
 
Ray, M.B., Luning, P.E., Hoffmann, A.C., Plomp, A. and Beumer, M.I.L. "Post Cyclone (PoC); an innovative way to reduce the emission of fines from industrial cyclones" Ind. Eng. Chem. Res 36 (1997), 2766--2774. Abstract
 
Hartholt, G.P., la Rivière, R., Hoffmann, A.C. and Janssen, L.P.B.M "The influence of perforated baffles on the mixing and segregation of a binary group B mixture in a gas-solid fluidised bed" Powder Technol. 93 (1997), 185--188.
 
 
1998:
 
Hoogstraten, H.W., Rass, W.B., Hartholt, G.P. and Hoffmann, A.C. "A numerical study of the flow past a spherical cap bubble rising in a fluidized bed" Ind. Eng. Chem. Res. 37 (1998), 247--252.
 
Janssen, L.P.B.M., Marring, E., Hoogerbrugge, J.C. and Hoffmann, A.C. "The mechanical behaviour of vibrated, aerated beds of glass and starch powder" Chem. Eng. Sci. 53 (1998), 761--772. Abstract
 
Finkers, H.J. and Hoffmann, A.C., "Using a 'Structural ratio' for predicting the fractional voidage of binary particle mixtures" AIChE Journal 44 (1998), 495--497. Abstract
 
Ray, M.B., Luning, P.E., Hoffmann, A.C., Plomp, A. and Beumer, M.I.L., "Improving the efficiency of industrial scale cyclones for particles less than five micron" Int. J. Miner. Process. 53 (1998), 39--47.
 
Hoffmann, A.C., Postma, R., Plomp, A. and Ray, M.B. 'Comparison of Different Analytical Methods in Predicting the Efficiency of Gas-Solid Separators' Proceedings PARTEC 98, 4. European Symposium Separation of Particles from Gases, F. Ebert (ed.) Nürnberg, March 1998, 35--44.
 
Schaafsma, S.H, Hoffmann, A.C., Blauw, L., Vonk, P. and Kossen, N.W.F.. 'Influence of liquid distribution on the fluid bed agglomeration process' Proceedings PARTEC 98, 1. European Symposium Process Technology in Pharmaceutical and Nutritional Sciences, H. Leuenberger (ed.), Nürnberg, March 1998, 100--109.
 
Wensink, E.J.W., Hoffmann,A.C. and Apol, M.E.F. "The effect of adsorbed moisture on interparticle forces, investigated by means of MD simulations"Proceedings of the World Conference on Particle Technology 3, Brighton, UK, July 1998.
 
Hoffmann, A.C. and Dehling, H.G. "A stochastic modelling approach to particle residence time distribution in continuous fluidized beds " Proceedings of the World Conference on Particle Technology 3, Brighton, UK, July 1998.
 
Snieders, F., Hoffmann,A.C., Yates, J.G. and Cheesman, D. " Experimental investigation of the behaviour of coarse particles in an interconnected fluidized bed " Proceedings of the World Conference on Particle Technology 3, Brighton, UK, July 1998.
 
Postma, R., Hoffmann, A.C., Dries, H.W.A. and Williams, C.P. " The use of swirl tubes for dedusting" Proceedings of the World Conference on Particle Technology 3, Brighton, UK, July 1998.
 
Dijk, van J.-J., Hoffmann, A.C., Cheesman, D. and Yates, J.G, "The influence of horizontal internals on the flowpattern in dense fluidized beds. An X-ray investigation." Powder Technol. 98 (1998), 273--278. Abstract
 
 
1999:
 
Snieders, F.F., Hoffmann, A.C., Cheesman, D., Yates, J.G., Stein, M. and Seville, J.P.K. "The dynamics of large particles in a four-compartment interconnected fluidized bed" Powder Technol. 101 (1999), 229--239. Abstract
 
de Jong, J.A.H., Hoffmann, A.C. and Finkers H.J. "Powder flowability in practice: a review and discussion" Chem. Eng. Progress 95 No4 (1999), 25--33. Abstract
 
Hoffmann, A.C., and Kevelam, J. "A model for the interparticle surface separation in concentrated mono- and polydisperse suspensions" AIChE Journal 45 (1999), 285--290. Abstract
 
Schaafsma, S., Kossen, N.W.F., Mos, M.T., Blauw, L. and Hoffmann, A.C. "Effects and control of humidity and particle mixing in fluid bed granulation" AIChE Journal 45 (1999), 1202--1210.
 
Kevelam, J., Hoffmann, A.C., Engberts, J.B.F.N., Blokzijl, W., Pas, J. van de, Versluis, P. "Rheology of concentrated dispersions of sterically-stabilized polydisperse lamellar droplets" Langmuir 15 (1999), 5002--5013.
 
Dries, H.W., Geiger , Bekink, Postma, R.S. and Hoffmann A.C. "Hot Flue Gas Clean Up with the upgraded Shell Third Stage Separator" Proceedings of CFB-6, 6th International Conference on Circulating Fluidized Beds August 22--27, 1999, Würzburg, Germany.
 
Dehling, H.G., Hoffmann, A.C. and Stuut, H.W. "Stochastic models for transport in a fluidized bed" SIAM J. Appl. Math. 60 (1999), 337--358. Postscript version available from here
 
Hoffmann A. C., Berrino, A. and Ray, M.B."On the Shape of Grade Efficiency Curves Computed for Centrifugal Dedusters by CFD with Lagrangian Particle Tracking" AIChE Symp. Ser. 95 No321 (1999), 13--17.
 
 
2000:
 
Ray, M.B., Hoffmann, A.C. and Postma, R.S. "Performance of different analytical methods in evaluating grade efficiency of centrifugal separators" J. Aerosol Sci 31 (2000), 563--581.
 
Hoffmann, A.C. "Manipulating fluidized beds by using internals: Fluidization with baffles" NPT Procestechnologie 7 No 2 (2000), 20--24.
 
Dechsiri, C., Abanades, J.C., Dehling, H.G., Hoffmann, A.C. and Wright, P.C."A Stochastic Model for Mixing and Segregation in Slugging Fluidized Beds" Récents Progrés en Génie des Procédés No 75 vol 14 (2000), Proceedings of the 3rd European Conference on Fluidization, Toulouse, May 2000, 631--641.
 
Wensink, E.J.W., Hoffmann, A.C., Apol, M.E.F. and Berendsen H.J.C. "Properties of adsorbed water layers and the effect of adsorbed layers on interparticle forces" Langmuir 16 (2000), 7392--7400. Abstract
 
 
2001:
 
Cioffi, M., Janssen, L.P.B.M. and Hoffmann, A.C. "Reducing the gel effect in free radical polymerization" Chem. Eng. Sci. 56 (2001), 911--915.
 
Dechsiri, C., Bosma, J.C., Hoffmann, A.C., Hui, G. and Dehling, H.G."A Stochastic Model for Particle Mixing and Segregation in Fluidized Beds with Baffles" Proceedings PARTEC 2001 International Congress for Particle Technology, Nürnberg, March 2001.
 
Peng, W., Hoffmann, A. C., Boot, P., Udding, A., Dries, H.W.A. and Kater, J.J. "Determining the best modelling assumptions for cyclones and swirl tubes by CFD and LDA" Proceedings PARTEC 2001 International Congress for Particle Technology, Nürnberg, March 2001.
 
Cioffi, M., Hoffmann, A.C. and Janssen, L.P.B.M. "Rheokinetics and the Influence of Shear Rate on the Trommsdorff (Gel) Effect During Free Radical Polymerization" Polymer Eng. & Sci. 41 (2001), 595--602.
 
Cioffi, M., Janssen, L.P.B.M. and Hoffmann, A.C "Instabilities in free radical polymerization" Nonlinear Analysis 47 (2001), 897--906.
 
Hoffmann, A.C., de Groot, M. Peng, W., Dries, H.W.A. and Kater, J. "Advantages and Risks in Increasing Cyclone Separator Length" AIChE Journal 47 (2001), 2452--2460. Abstract
 
Peng W., Boot, P.J.A.J., Hoffmann A.C., Dries, H.W.A., Kater, J., Ekker, A. "Flow in the inlet region in tangential inlet cyclones" Ind. Eng. Chem. Res. 40 (2001), 5649--5655.
 
Biggs, C.A., Sanders, C.F.W., Scott, A.C., Willemse, A.W., Hoffmann, A.C., Instone, T. and Hounslow, M.J. "Coupling granule properties and granulation rates in high-shear granulation" Proc. 7th Int. Symp. Agglom. Albi, France (2001).
 
 
2002:
 
Reuvekamp, R.J., Ray, M.B. and Hoffmann, A.C. "Deposition of a Fine Powder in Horizontal Pipelines and Bends" Chem Eng Comm. 189 (2002), 849--864.
 
Hoffmann, A.C. and Stein, L.E. Gas Cyclones and Swirl Tubes: Principles, Design and Operation Springer Verlag, Berlin, Heidelberg, New York (2002). Website
 
Dechsiri C., van der Zwan E., Bosma, J.C, Paans A.M.J. and Hoffmann A.C. "Positron Emission Tomography (PET) for fluidization" Proceedings WCPT4, the Fourth World Congress on Particle Technology, Sydney, 2002.
 
Dechsiri C., Dehling, H.G. and Hoffmann A.C. "Stochastic model for fluidization" Proceedings WCPT4, the Fourth World Congress on Particle Technology, Sydney, 2002.
 
Wright, P. C., Makkawi, Y.T., Meeyoo, V., Dechsiri, C., Zwan, E., Paans, A.M.J. and Hoffmann A.C. "Observation of Cross-Sectional Non-Uniformity in Fluidized Beds using Two Different Imaging Techniques" Proceedings WCPT4, the Fourth World Congress on Particle Technology, Sydney, 2002.
 
Apol, M.E.F. Berendsen, H.J.C. Mark, A.E. and Hoffmann A.C. "Interparticle Forces for DEM by MD Simulations" Proceedings WCPT4, the Fourth World Congress on Particle Technology, Sydney, 2002.
 
Bosma, J.C. Hoffmann, A.C. "Feasibility Study of Particle Classification in Fluidized Beds with Internal Baffles" Proceedings WCPT4, the Fourth World Congress on Particle Technology, Sydney, 2002.
 
Peng, W., Hoffmann, A.C. Boot, P., Udding, A., Dries, H.W.A., Ekker, A. and Kater, J. "Flowpattern in Reverse-Flow Centrifugal Separators" Powder Technol. 127 (2002), 212--222.
 
Cioffi, M., Ganzeveld, K.J., Hoffmann, A.C. and Janssen, L.P.B.M. "Rheokinetics of linear polymerization. A literature review" Polymer Engineering and Science 42 (2002), 2383--2392.
 
 
2003:
 
Biggs, C.A., Sanders, C., Scott, A.C., Willemse, A.W., Hoffmann, A.C., Instone, T., Salman, A.D. and Hounslow, M.J. "Coupling granule properties and granulation rates in high-shear granulation" Powder Technol. 130 (2003), 162--168.
 
Dechsiri, C., van de Wiel, F., Dehling, H.G., Paans, A.M.J. and Hoffmann, A.C. "Positron Emission Tomography Applied to Fluidization Engineering" Proceedings of the 3rd World Conference on Industrial Process Tomography, Banff, Canada 2003.
 
Hoffmann, A.C., Dechsiri, C., van de Wiel, F., Ghione, A., Dehling, H.G. and Paans, A.M.J. "Tracking Individual Particles in a Fluidized Bed using a Medical PET-Camera" Proceedings of the 3rd World Conference on Industrial Process Tomography, Banff, Canada 2003.
 
Bosma, J.C. and Hoffmann, A.C. "On the capacity of continuous powder classification in a gas fluidized bed with horizontal baffles" Powder Technol. 134 (2003), 1--15.
 
Wensink, E.J.W, Hoffmann, A.C., van Maaren, P.J. and van der Spoel, D. "Dynamic properties of water/alcohol mixtures studied by computer simulation" Journal of Chemical Physics 119 (2003), 7308--7317.
 
 
2004:
 
Cioffi, M., Ganzeveld, K.J., Hoffmann, A.C. and Janssen, L.P.B.M. "A rheokinetic study of bulk free radical polymerization with a helical barrel rheometer" Polymer Engineering and Science 44 (2004), 179--185.
 
Wensink, E.J.W., Hoffmann, A.C., van Maaren, P.J. and van der Spoel, D. "Extensive simulation studies of alcohol in water" Poster presentation at CESIO, the 6th World Surfactants Congress Berlin, Germany, 2004.
 
Peng, W., Hoffmann, A.C. and Dries, H. "The separation characteristics of swirl tube dust separators" AIChE Journal 50 (2004), 87--96.
 
Kosinski, P., Hoffmann, A.C. and Klemens, R. "Dust lifting modelling using the Eulerian and Lagrangian approaches" Poster presentation at 30the Symposium on Combustion Chicago, USA, July 25--30 2004.
 
Kosinski, P. and Hoffmann, A.C. "Mathematical modelling of dust explosions in interconnected vessels" Proceedings of WCNA2004 Orlando, USA, July 2004.
 
Dewitz, T.S., Sanborn, R.A., Dries, H.W.A., Ekker, A.A., Kater, J., Peng, W. and Hoffmann A.C. International Patent Application TS 138 (2004).
 
 
2005:
 
Dechsiri, C., van der Zwan, E.A., Dehling H.G. and Hoffmann A.C. "The Dispersion of Particle Pulses in Fluidized Beds Measured by PET" AIChE Journal 51 (2005), 791--801.
 
Hoffmann, A.C., Dechsiri, C., van de Wiel, F. and Dehling, H.G. "PET investigation of a fluidized particle: spatial and temporal resolution and short term motion" Meas. Sci. Technol. 16 (2005), 851--858.
 
Dechsiri, C., Ghione, A., Van de Wiel, F., Dehling, H.G., Paans, A.M.J. and Hoffmann, A.C. "Positron emission tomography applied to fluidization engineering" Can. J. Chem. Eng. 83 (2005), 88--96.
 
Kosinski, P., Hoffmann, A.C. and Klemens, R. "Dust lifting behind shock waves: comparison of two modelling techniques" Chem. Eng. Sci. 60 (2005), 5219--5230.
 
Kosinski, P. and Hoffmann, A.C. "Dust explosions in connected vessels: mathematical modelling" Powder Technology 155 (2005), 108--116.
 
Ritherdon, J., Dechsiri, C., Jones, A.R., Hoffmann, A.C. and Wright, I.G. "On suitability of novel fluidised bed technique for separation aof metallic powders during commercial powder metallurgical processing" Powder Metallurgy 48 (2005), 199--202.
 
Peng, W., Hoffmann, A.C., Dries, H.W.A, Regelink, M.A. and Stein, L.E. "Experimental study of the vortex end in centrifugal separators: The nature of the vortex end" Chem. Eng. Sci. 60 (2005), 6919--6928.
 
Kosinski, P. and Hoffmann, A.C. "Modelling of dust lifting using the Lagrangian approach" Int. J. of Multiphase Flow 31 (2005), 1097--1115.
 
Peng, W., Hoffmann, A.C., Dries, H.W.A., Regelink, M.A. and Foo, K.-K. "Neutrally boyant tracer in gas cleaning equipment. A case study" Meas. Sci. Technol. 16 (2005), 2405--2414.
 
Kosinski, P. and Hoffmann, A.C. "Mathematical modelling of dust explosions in interconnected vessels" Nonlinear Analysis 63 (2005), e1087--e1096.
 
 
2006:
 
Ho, T.X., Kosinski, P. and Hoffmann, A.C. "Direct numerical simulation of particle-fluid flow: The state-of-the-art" Proceedings of WCPT5, The Fifth World Conference on Particle Technology, Orlando, Florida, April 23--27, 2006. Paper 11c.
 
Suciu, C. and Hoffmann, A.C. "Sol-Gel Production of ZrO2 and YSZ with a New Organic Precursor" Proceedings of WCPT5, The Fifth World Conference on Particle Technology, Orlando, Florida, April 23--27, 2006. Paper 234c.
 
Schaafsma, S.H., Marx, T. and Hoffmann, A.C. "Investigation of the particle flowpattern and segregation in tapered fluidized bed granulators" Chem. Eng. Sci. 61 (2006), 4467--4475.
 
Kosinski P. "On shock wave propagation in a branced channel with particles" Shock Waves 15 (2006), 13--20.
 
van der Spoel, D., Wensink, E.J.W. and Hoffmann, A.C. "Lifting a wet glass from a table: a microscopic picture" Langmuir 22 (2006), 5666--5672.
 
Schaafsma, S.H., Vonk, P., Kossen, N.W.F. and Hoffmann, A.C. "A model for the spray zone in early-stage fluidized bed granulation" AIChE Journal 52 (2006), 2736--2741. preprint
 
Hoffmann, A.C., Peng, W., Dries, H., Regelink M., Foo, K.-K."Effect of pressure recovery vanes on the performance of a swirl tube, with emphasis on the flow pattern and separation efficiency" Energy & Fuels 20 (2006), 1691--1697. preprint
 
Gottschalk, T., Dehling, H.G. and Hoffmann, A.C. "Danckwerts' law for mean residence time revisited" Chem. Eng. Sci. 61 (2006), 6213--6217. preprint
 
Jacobsson, S., Austrheim, T. and Hoffmann A.C. "Experimental and CFD investigation of the flow in and around once-through swirl tubes" Ind. & Eng. Chem. Res. 45 (2006), 6525--6530.
 
Kosinski, P., Kosinska, A. and Hoffmann A.C. "Fluid-particle flows in a driven cavity" Proceedings ICNAAM, Crete, Sept. 15--19, 2006
 
Ilea, C.G., Kosinski, P. and Hoffmann A.C. "3-D Eulerian-Lagrangian simulation of dust lifting" Proceedings ICNAAM, Crete, Sept. 15--19, 2006
 
Kosinski, P. and Hoffmann, A.C. "An investigation of the consequences of primary dust explosions in interconnected vessels" Journal of Hazardous Materials A137 (2006), 752--761.
 
Suciu, C. Hoffmann, A.C., Gagea, L. and Mocean, M."Sol-Gel Production of Zirconia Nanoparticles with a New Organic Precursor" Chem. Eng. Sci. 61 (2006) 7831--7835.
 
 
2007:
 
Dehling, H.G, Dechsiri, C., Gottschalk, T., Wright P.C. and Hoffmann, A.C. "A stochastic model for mixing and segregation in slugging fluidized beds" Powder Technology 171 (2007), 118--125.
 
Kosinski, P. and Hoffmann, A.C. "A Eulerian-Lagrangian model for dense particle clouds" Computers & Fluids 36 (2007), 714--723.
 
Peng, W., Hoffmann, A.C., Dries, H., Regelink M., Foo, K.-K."Reverse-flow, centrifugal separators operating in parallel, performance and flow pattern" AIChE Journal 53 (2007), 589--597.
 
Ilea, C.G., Kosinski, P. and Hoffmann A.C. "Simulation of a dust lifting process in a two-dimensional domain with rough walls" Proceedings PARTEC 2007, International Congress on Particle Technology Nuremberg, March 2007, paper P01-02.
 
Suciu, C., Vik, A. and Hoffmann, A.C. "Nanoparticles for solid oxide fuel cell anodes" Proceedings PARTEC 2007, International Congress on Particle Technology Nuremberg March 2007, paper P11-13.
 
Kosinska, A., Kosinski, P. and Hoffmann A.C. "Numerical simulation of particle-flow interactions: formation of agglomerates" Proceedings PARTEC 2007, International Congress on Particle Technology Nuremberg, March 2007, paper S01-3 .
 
Ho, T.X., Kosinski, P., Hoffmann, A.C., Wærnhus, I. and Vik, A. "Numerical Simulation of Electrochemical and Transport Processes in Solid Oxide Fuel Cells" ECS Transactions 7 (2007), 1901--1908.
 
Austrheim, T., Gjertsen, L.H. and Hoffmann A.C. "Is the Souders-Brown equation sufficient for scrubber design? An experimental investigation at elevated pressure with hydrocarbon fluids" Chem. Eng. Sci. 62 (2007), 5715--5727. preprint
 
Lunev, M., Hoffmann, A.C. and Silalahi, S. "Solid Oxide Fuel Cell Components Studied by Molecular Dynamics" Poster presentation at the NANOMAT Conference 2007, Bergen, Norway, 4--9 June 2007.
 
Suciu, C, Mæland, D., Hoffmann, A.C., Vik, A. and Wærnhus, I. "SOFC components from nano-particles: particle manufacture, sintering and characterization" Poster presentation at the NANOMAT Conference 2007, Bergen, Norway, 4--9 June 2007.
 
Peng, W., Jacobsson, S. and Hoffmann, A.C. "Neutrally buoyant tracer in gas cleaning equipment. A case study" Proceedings WCIPT 5 Bergen, Sept. 3--6, 2007.
 
Austrheim, T., Gjertsen, L.H. and Hoffmann A.C. "Reentrainment correlations for demisting cyclones acting at elevated pressures on a range of fluids" Energy & Fuels 21 (2007) 2969--2976. preprint
 
Suciu, C., Hoffmann, A.C., Vik, A., Firuta G. "Fuel Cells and Nanoparticles" Studia Universitatis Babes-Bolyai, Chemia 2, LII, (2007) 3--12.
 
Ilea, C., Kosinski, P. and Hoffmann A.C. "Dust Lifting Simulations with Particles of Distributed Sizes" AIP Conference Proceedings, 936 (2007), 631--634.
 
Kosinski, P., Kosinska, A. and Hoffmann A.C. "Consequences of particle-particle interaction in a 2-D square domain" AIP Conference Proceedings, 936 (2007), 639--642.
 
Kosinski, P. "Numerical analysis of shock wave interaction with a cloud of particles in a channel with bends" Int. J. Heat and Fluid Flow 28 (2007) 1136--1143.
 
Dehling, H.G., Gottschalk, T. and Hoffmann, A.C. Stochastic Modelling in Process Technology Elsevier Science, London (2007) ISBN 978-0444520265, 279 pp.
 
Hoffmann, A.C. and Stein, L.E., Gas Cyclones and Swirl Tubes: Principles, Design and Operation 2nd, Expanded Edition, Springer Verlag, Berlin, Heidelberg, New York (2007) ISBN 978-3-540-74694-2. 426 pp.
 
 
2008:
 
Austrheim, T., Gjertsen, L.H. and Hoffmann A.C. "Experimental investigation of the performance of a large-scale scrubber operating at elevated pressure on live natural gas" Fuel 87 (2008), 1281-1288. preprint
 
Austrheim, T., Gjertsen, L.H. and Hoffmann A.C. "An experimental investigation of scrubber internals at conditions of low pressure" Chem. Eng. J. 138 (2008), 95-102. preprint
 
Suciu, C., Hoffmann, A.C, Vik, A. and Goga, F. "Effect of calcination conditions and precusor proportions on the properties of YSZ nanoparticles obtained by modified sol-gel route" Chem. Eng. J. 138 (2008), 608-615. preprint
 
Gottschalk, T., Dehling, H.G. and Hoffmann, A.C. "Multiphase stochastic model for fluidized beds" Phys. Rev. E. 77, 031306 (2008). preprint. Also selected for publication in Virtual Journal of Nanoscale Science & Technology 17 Issue 3 (2008).
 
Suciu, C., Hoffmann, A.C. and Kosinski, P. "Obtaining YSZ nanoparticles by the sol-gel method with sucrose and pectin" Journal of Materials Processing Technology 202 (2008), 316-320. preprint
 
Mæland, D., Suciu, C., Wærnhus, I. and Hoffmann, A.C. "Sintering properties of 4YSZ nanoparticles and ionic impedance of the resulting materials" poster presentation at EuroConference on Nanotechnology for Sustainable Energy 14-19 June 2008, Obergurgl, Austria.
 
Suciu, C., Hoffmann, A.C., Vik, A., Tetean, R., Dorolti, E. and Erich- sen E. "Optimizing sol-gel produced NiO nanopowder as precursor for SOFC anodes" poster presentation at EuroConference on Nanotechnology for Sustainable Energy 14-19 June 2008, Obergurgl, Austria.
 
Suciu, C., Hoffmann, A.C., Dorolti, E. and Tetean, R. "NiO/YSZ nanoparticles obtained by new sol-gel route" Chem. Eng. J. 140 (2008), 586-592.
 
Ilea, C.G., Kosinski, P. and Hoffmann A.C. "Simulation of a dust lifting process with rough walls" Chem. Eng. Sci. 63 (2008), 3864-3876. preprint
 
Ilea, C.G., Kosinski, P. and Hoffmann A.C. "Three-dimensional simulation of a dust lifting process with varying parameters" Int. J. Multiphase Flow 34 (2008), 869-878.
 
Ho, T.X, Kosinski, P., Hoffmann A.C. and Vik, A. "Numerical study of an SOFC with direct internal reforming using charge diffusion-based model" Proceedings of the 8th European Solid Oxide Fuel Cell Forum Lucerne 30. June-4. July (2008).
 
Sæthre, B.S. and Hoffmann, A.C. "Surface-fluctuations on clathrate hydrate structure I and II slabs in selected environments" Proceedings of the 6th International Conference on Gas Hydrates (ICGH 2008), Vancouver, British Columbia, Canada, July 6-10 (2008).
 
Suciu, C.S., Mæland, D., Hoffmann, A.C., Vik, A. and Wærnhus, I. "Research in materials for solid oxide fuel cells" invited oral presentation at Norwegian Hydrogen Seminar 2008, Bergen, Norway, September 25-26, 2008.
 
Ho, T.X., Kosinski, P., Hoffmann, A.C. and Vik, A. "Numerical study of a solid oxide fuel cell with direct internal methane reforming" poster presentation at Norwegian Hydrogen Seminar 2008, Bergen, Norway, September 25-26, 2008.
 
Barth, T., Talatori, S, Erstad, K., Borgund, A.E., Genov, G., Sæthre, B.S., Kosinski, P. and Hoffmann, A.C. "Hydrates in petroleum production-assessment of plug risk. Project HYPERION enters it s third and final year" Proceedings of the 6th International Conference on Gas Hydrates (ICGH 2008), Vancouver, British Columbia, Canada, July 6-10 (2008).
 
Peng, W., Christensen, D., Jacobsson, S., Kvinnesland, E. and Hoffmann, A.C. "Studies of the flow in and around gas dedusters and demisters using neutrally buoyant tracer" Chem. Eng. J. doi:10.1016/j.cej.2008.07.014 (2008).
 
Ho, T.X., Kosinski, P., Hoffmann, A.C. and Vik, A. "Numerical modeling of solid oxide fuel cells" Chem. Eng. Sci. 63 (2008), 5356-5365. preprint
 
Kosinski, P. "Numerical investigation of explosion suppression by inert particles in straight ducts" Journal of Hazardous Materials 154 (2008), 981-991.
 
Suciu, C.S., Mæland, D., Hoffmann, A.C., Vik, A. and Wærnhus, I. "Priorities in Material Design for Solid Oxide Fuel Cells -With Emphasis on the Anode and the Electrolyte" Proceedings, AES-ATEMA/2008 Second International Conference, Cesena, Italy, September 01-05, 2008, pp. 81-84. Invited plenary paper
 
Suciu, C.S., Mæland, D., Hoffmann, A.C., Vik, A. and Wærnhus, I. "The Use of Nanoparticles for Solid Oxide Fuel Cell Components " Proceedings, AES-ATEMA/2008 Second International Conference, Cesena, Italy, September 01-05, 2008, pp. 33-36. Invited keynote paper
 
Balakin, B.V., Hoffmann, A.C., Kosinski, P.J. and Rhyne, L.D. "Eulerian-Eulerian simulation of sedimentation of uniformly-sized, non-Brownian spheres in viscous fluids" AIP Conference Proceedings 1048 (2008), 723-726.
 
Ilea, C. G., Kosinski, P. and Hoffmann, A.C."Influence of collision algorithm parameters on statistical results of dust lifting simulations" AIP Conference Proceedings 1048 (2008), 815-818.
 
Suciu, C., Hoffmann, A.C., Goga, A., Tetean, R., Dorolti, E. "NiO nanoparticles for SOFC anodes. Comparison of two synthesis methods" oral presentation at Zing Nanomaterials Conference 2008, Playa del Carmen, Mexico, December 7-10, 2008.
 
 
2009:
 
Ho, T.X., Kosinski, P., Hoffmann, A.C. and Vik, A. "Numerical analysis of a planar anode-supported SOFC with composite electrodes" International Journal of Hydrogen Energy 34 (2009), 3488-3499. preprint
 
Kosinski, P., Kosinska, A. and Hoffmann, A.C. "Simulation of solid particles behaviour in a driven cavity flow" Powder Technology 191 (2009), 327-339.
 
Suciu, C.S., Mæland, D., Hoffmann, A.C., Vik, A. and Wærnhus, I. "Priorities in Material Design for Solid Oxide Fuel Cells-With Emphasis on the Anode and the Electrolyte" International Journal of Advances in Mechanics and Applications of Industrial Materials 1 (2009), pp. 35-40.
 
Suciu, C.S., Mæland, D., Hoffmann, A.C., Vik, A. and Wærnhus, I. "The Use of Nanoparticles for Solid Oxide Fuel Cell Components " International Journal of Advances in Mechanics and Applications of Industrial Materials 1 (2009), pp. 29-33.
 
Ho, T.X., Kosinski, P., Hoffmann, A.C. and Vik, A. "Modeling of transport, chemical and electrochemical phenomena in a cathode-supported SOFC" Chem. Eng. Sci. 64 (2009), 3000-3009.
 
Mæland, D., Suciu, C., Wærnhus, I. and Hoffmann, A.C. "Sintering of 4YSZ (ZrO2 + 4 mol% Y2O3) nanoceramics for solid oxide fuel cells (SOFCs), their structure and ionic conductivity" J. Eur. Ceram. Soc. 29 (2009), 2537-2547. preprint
 
Kosinski, P. and Hoffmann, A.C. "An extension of the hard-sphere particle-wall collision model to account for particle deposition" Phys. Rev. E 79 (2009), 061302-1-061302-11. preprint
 
Asserson, R., Hoffmann, A.C., Høiland, S. and Asvik, K.M. "Interfacial tension measurement of freon hydrates by droplet deposition and contact angle measurements" Journal of Petroleum Science and Engineering 68 (2009), 209-217.
 
Ilea, C.G, Kosinski, P. and Hoffmann, A.C. "Numerical investigation of the effect of polydispersity on dust lifting behind shock waves" Powder Technology 196 (2009), 194-201. preprint
 
Ilea, C., Kosinski, P. and Hoffmann A.C. "Jet-vortex interaction: A numerical study" AIP Conference Proceedings 1168 (2009), 617-620.
 
Pisarev, G.I, Hoffmann A.C., Peng, W. and Dijkstra, H.A. "Large-eddy simulation of the vortex end in reverse-flow centrifugal separators" AIP Conference Proceedings 1168 (2009), 641-644.
 
Suciu, C., Erichsen, E, Hoffmann, A.C., Dorolti, E. and Tetean, R. "Modified sol-gel method used for obtaining SOFC electrolyte materials" ECS Transactions 25 (2) (2009), 1679-1686.
 
Ho, T.X., Kosinski, P., Hoffmann, A.C. and Vik, A. "Fully three-dimensional modeling of Solid Oxide Fuel Cells" oral presentation at MODVAL6--6th Symposium on Fuel Cell Modelling and Experimental Validation, Bad Herrenalb, Karlsruhe, Germany, March 25-26, 2009.
 
Ho, T.X., Kosinski, P., Hoffmann, A.C. and Vik, A. "Detailed Modeling of an anode-supported solid oxide fuel cell using a fully three-dimensional approach" ECS Transactions 25 (2) (2009), 1231-1240.
 
 
2010:
 
Hoffmann, A.C. "Stochastic Modeling Techniques in Powder Technology" Chapter in "Powder Engineering, Technology and Applications" Jason M. Barker (Ed.) Nova Science Publishers, Inc., New York (2010). ISBN: 978-1-61761-424-8. 46 pp.
 
Balakin, B.V., Pedersen, H., Kilinc, Z., Hoffmann, A.C., Kosinski, P. and Høiland, S. "Turbulent Flow of Freon R11 Hydrate Slurry" Journal of Petroleum Science and Engineering 70 (2010), 177-182.
 
Balakin, B.V., Hoffmann, A.C., Kosinski, P. and Rhyne, L.D. "Eulerian- Eulerian CFD model for the sedimentation of spherical particles in suspension with high particle concentrations" Engineering Applications of Computational Fluid Mechanics 4 (2010), 116-126
 
Suciu, C.S., Tikkanen, H.M., Ho, T.X., Hoffmann A.C., Vik, A. and Wærnhus, I. "Hydrogrenaktiviteter på Universitetet i Bergen" Presentation held at the Meeting of the Norwegian Hydrogen Forum, Bergen 30 June 2010.
 
Peng, W., Christensen, D., Jacobsson, S., Kvinnesland, E. and Hoffmann, A.C. "Studies of the flow in and around gas dedusters and demisters using neutrally buoyant tracer" Chem. Eng. J. 158 (2010), 11-18.
 
Kosinski,P. and Hoffmann, A.C."An extension of the hard-sphere particle- particle collision model to study agglomeration" Chem. Eng. Sci. 65 (2010), 3231-3239
 
Ho, T.X., Kosinski, P., Hoffmann, A.C. and Vik, A. "Effects of heat sources on the performance of a planar solid oxide fuel cell" International Journal of Hydrogen Energy 35 (2010), 4276-4284
 
Tikkanen, H., Suciu, C., Wærnhus, I. and Hoffmann, A.C."Electrophoretic deposition of 8YSZ on cathode substrate" Poster presentation at the 9th European SOFC Forum Luzern, 29.06-02.07 2010.
 
Ilea, C.G., Kosinski, P. and Hoffmann, A.C. "Ordering of monosized particles during simulations of a fluid-solid flow under shear" Proceedings WCPT6, 26-29 April (2010), Nuremberg, Germany, paper H H 1 0 00101
 
Suciu, C.S., Hoffmann, A.C. and Wćrnhus, I. "A flexible, cost-effective production method for high-quality nanoparticles" Proceedings WCPT6, 26-29 April (2010), Nuremberg, Germany, paper H H 1 0 00260
 
Suciu, C., Hoffmann, A.C., Dorolti, E., Tetean, R. and Vik, A. "Properties of 3-15 mol% YSZ materials" Proceedings 218th ECS Meeting 10-15 October 2010, Las Vegas, NV, USA.
 
Ho, T.X., Kosinski, P., Hoffmann, A.C. and Vik, A. "Transport, chemical and electrochemical processes in a planar SOFC: Detailed three-dimensional modeling" Journal of Power Sources 195 (2010) 6764-6773.
 
Chang, Y.F. Hoffmann, A.C. Ilea C.G. and Aasen Ø.L., "Particle flow in a hydrocyclone investigated by radioactive particle tracking" Proceedings of FPS2010-European Conference on Fluid Particle Separation, Lyon, France, 5.-7. October 2010.
 
Balakin,B.V., Hoffmann,A.C. and Kosinski,P. "Population balance model for nucleation, growth, aggregation and breakage of hydrate particles in turbulent flow" AIChE Journal 56 (2010), 2052-2062.
 
Balakin, B.V., Hoffmann, A.C., Kosinski, P. and Hoiland, S., "Turbulent flow of hydrates in a pipeline of complex configuration" Chem. Eng. Sci. 65 (2010), 5007-5017.
 
Balakin, B.V., Hoffmann, A.C., Kosinski, P., Istomin, V.A., Chuvilin, E.M., "Combined CFD/Population Balance Model for gas hydrate particle size prediction in turbulent pipeline flow" AIP Conference Proceedings 1281 (2010), 151-154.
 
Kosinski, P., Hoffmann A.C., "Quantification of the adhesive impulse for the extended hard-sphere model" AIP Conference Proceedings 1281 (2010), 163-166.
 
 
2011:
 
Pisarev, G.I, Hoffmann A.C., Peng, W. and Dijkstra, H.A. "Large eddy simulation of the vortex end in reverse-flow centrifugal separators" Applied Mathematics and Computation 217 (2011), 5016--5022.
 
Ilea, C., Kosinski, P. and Hoffmann A.C. "Numerical study on the dynamics of a jet-vortex interaction" Applied Mathematics and Computation 217 (2011), 5103--5112.
 
Chang, Y.F., Hoffmann, A.C., Ilea C.G. and Aasen Ø.L., "Particle trajectories in a hydrocyclone measured by PEPT" Proceedings Filtech 2011, pp I-173--I-180 March 22--24, 2011 Wiesbaden, Germany.
 
Tikkanen, H., Suciu, C., Wærnhus, I. and Hoffmann, A.C. "Examination of the co-sintering process of thin 8YSZ films obtained by dip-coating on in-house produced NiO-YSZ" Journal of the European Ceramic Society 31 (2011), 1733--1739.
 
Chang, Y.F., Pisarev, G.I. and Hoffmann, A.C. "PEPT: an invaluable tool for 3-D particle tracking and CFD simulation verification in hydrocyclone studies" Proceedings TRACER 6 Sixth International Conference on Tracers and Tracing Methods Oslo 6--8 June 2011.
 
Chang, Y.F., Ilea C.G., Aasen Ø.L. and Hoffmann, A.C., "Particle flow in a hydrocyclone investigated by positron emission particle tracking" Chem. Eng. Sci. 66 (2011), 4203--4211.
 
Tikkanen, H., Suciu, C., Wærnhus, I. and Hoffmann, A.C. "Dip-coating of 8YSZ nanopowder for SOFC applications" Ceramics International 37 (2011), 2869--2877.
 
Balakin, B.V., Hoffmann, A.C. and Kosinski, P., "Reply to the Letter to the Editor" AIChE Journal 57 (2011), 2288.
 
Kosinski, P. and Hoffmann, A.C. "Particle-particle agglomeration and use of the hard-sphere model" Proceedings of the 5th International Granulation Workshop, 20--22 June 2011, Lausanne, Switzerland.
 
Tikkanen, H., Suciu, C., Wærnhus, I. and Hoffmann, A.C. "Fabrication and cell performance of anode-supported SOFC made of in-house produced NiO-YSZ nano-composite powder" Proceedings of the European Fuel Cell Forum 2011 28 June--1 July 2011, Lucerne, Switzerland.
 
Sæthre, B.S., Hoffmann, A.C. and van der Spoel, D. "Order parameters for detection and demarkation of interfaces in hydrate-fluid and ice-fluid systems" Proceedings of the 7th International Conference on Gas Hydrates (ICGH 2011), 17--21 July, 2011, Edinburgh, Scotland, United Kingdom.
 
Kosinski P. and Simos T. "Preface" Applied Mathematics and Computation 217 (2011), 5015--5015.
 
Kosinski, P. and Hoffmann, A.C. "Extended hard-sphere model and collisions of cohesive particles" Phys. Rev. E 84 (2011) 031303-1--031303-13.
 
Balakin, B.V. and Notøy I. and Hoffmann A.C. and Kosinski P. "CFD model for the magnetically forced formation of an obstructive deposit in a magnetorheological fluid" AIP Conference Proceedings 1389 (2011), 110--113.
 
Pisarev, G.I. and Hoffmann, A.C. "Certainties and uncertainties in CFD prediction of the end of the vortex behaviour in centrifugal separators" AIP Conference Proceedings 1389 (2011), 135--138.
 
Chang, Y.-F., Pisarev, G.I. and Hoffmann, A.C. "Numerical Study of the "end of the vortex" phenomenon in a hydrocyclone separator" AIP Conference Proceedings 1389 (2011), 183--186.
 
Kosinski P. "Explosion suppression by a cloud of particles: Numerical analysis of the initial processes" Applied Mathematics and Computation 217 (2011), 5087--5094.
 

 
 
2012:
 
Pisarev, G.I., Gjerde, V., Peng, W., Dijkstra, H.A., Balakin, B.V. and Hoffmann, A.C., "Experimental and computational study of the `end of the vortex' phenomenon in reverse-flow centrifugal separators" AIChE Journal 58 (2012), 1371--1380.
 
Chang, Y.-F., Skorpen, Å., Fonnes, D. and Hoffmann A.C. "Detecting Anomalies in the Separation Process in a Hydrocyclone Using a Medical PET Scanner" Proceedings of the 6th International Symposium on Process Tomography Cape Town, South Africa, 26--28 March, 2012.
 
Chang, Y.F., Hoffmann, A.C. and Adamsen, T.C.H. "Using a PET camera to track individual phases in process equipment with high temporal and spatial resolutions: algorithm development" Proceedings of the 2012 IEEE International Instrumentation and Measurement Technology Conference, I2MCT Graz, Austria, May 13--16, 2012
 
Kosinski, P. "The collision efficiency in a shear flow" Chem. Eng. Sci. 68 (2012), 305--312.
 
Balakin, B., Hoffmann, A.C. and Kosinski, P. Preface of the "7th symposium on numerical analysis of fluid flow and heat transfer" AIP Conference Proceedings 1479 (2012), 45--45.
 
Pisarev, G.I. and Hoffmann, A.C. "Effect of the "end of the vortex" phenomenon on the particle motion and separation in a swirl tube separator" Powder Technology 222 (2012), 101--107.
 
Kosinski P. and Simos, T.E. "Special issue on Numerical Analysis of Fluid Flow and Heat Transfer: Preface" Applied Mathematics and Computation 219 (2012), 3291--3291.
 
Suciu, C., Tikkanen, H., Waernhus, I., Goga, F. and Dorolti, E. "Water-based tape-casting of SOFC composite 3YSZ/8YSZ electrolytes and ionic conductivity of their pellets" Ceramics International 38 (2012), 357--365.
 
Sæthre, B., van der Spoel, D. and Hoffmann, A.C. "Free Energy of Separation of Structure II Clathrate Hydrate in Water and a Light Oil" The Journal of Physical Chemistry B 116 (2012), 5933--5940.
 
Balakin, B.V. and Notøy I. and Hoffmann A.C. and Kosinski P. "The formation of deposit in a magnetic fluid: Numerical and experimental study" Powder Technology 228 (2012), 108--114.
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