Kontakt
+49 711 685 85230
+49 711 685 85242
E-Mail
Böblinger Str. 78
70199 Stuttgart
Deutschland
Raum: 1.039
Fachgebiet
-
Technische Reaktionen unter transienten Bedingungen
-
Zyklische Prozesse
-
Reaktionsführung mit simultaner Wärme- und Stoffübertragung
-
Strukturbildung poröser Feststoffe
-
Transport in porösen Medien
2024
- S. Welzel, U. NiekenFouling During Polymerization in Different Continuous Reactor Setups2024, Chemie Ingenieur Technik Volume 96, Issue 12, 1632–1641
- D. Kleschew, U. Tuttlies, U. NiekenExperimental Analysis of Inductive Heating of Catalytic Beds2024, Chemie Ingenieur Technik
- L. Pauly, L. Maier, U. Nieken, G. T. GresserPhysics-based modeling of the effective gas transport properties of single jersey knitted fabrics based on images2024, Textile Research Journal
- L. Maier, S. Brosch, M. Gaehr, J. Linkhorst, M. Wessling, U. NiekenConvective Drying of Porous Media: Comparison of Phase-Field Simulations with Microfluidic Experiments2024, Transport in Porous Media 151(3), 559--583
- U. NiekenFrom micro-models to process scaleVortrag, 5th Indo-German Workshop on Advances in Materials, Reaction, and Separation Processes, 19.-21. Februar 2024, Kharagpur, Indien
2023
- L. Maier, L. Kufferath-Sieberin, L. Pauly, M. Hopp-Hirschler, G. T. Gresser, U. NiekenConstitutive Correlations for Mass Transport in Fibrous Media Based on Asymptotic Homogenization2023, Materials 16(5)
- J. Matthies, T. Schall, W. Pritzkow, U. Tuttlies, U. NiekenElectrically Heated Oxide Ceramic Tubes for High Temperature Reactions2023, Chemie Ingenieur Technik 95, 701–707
- Y. Lee, D. Dobesch, P. Stender, U. Tuttlies, U. Nieken, G. SchmitzAnalysis of the oxide formation on Pd catalysts during NO oxidation by Atom Probe Tomography2023, Chemical Engineering Science 277, 118849
- S. Welzel, C. Zander, U. NiekenWall Layer Formation in Continuously Operated Tubular Reactors for Free-Radical Polymerizations2023, Chemie Ingenieur Technik
- S. Welzel, J. Burmeister, O. Höppchen, U. NiekenValidation of an Extended Kinetic Model of Free-Radical N-Vinylpyrrolidone Polymerization2023, Macromolecular Reaction Engineering
- E. Spoor, S. Welzel, U. Nieken, M. RädleUV/VIS-Spectroscopic Inline Measurement for the Detection of Fouling Processes during the Polymerization of N-Vinylpyrrolidone2023, Reactions 4(1), 176–188
- L. Pauly, L. Maier, S. Dey, S. Schmied, U. Nieken, G. T. GresserImage-based analysis of single jersey loop parameters2023, Textile Research Journal
2022
- M. Scherle, T. A. Nowak, S. Welzel, B. J. M. Etzold, U. NiekenExperimental study of 3D – structured adsorbent composites with improved heat and mass transfer for adsorption heat pumps2022, Chemical Engineering Journal 431, 133365
- S. Welzel, C. Zander, K.-D. Hungenberg, U. NiekenModeling of the Branching Point Distribution During the Polymerization of N-Vinylpyrrolidone2022, Macromolecular Reaction Engineering
- S. Welzel, W. Säckel, U. NiekenModeling of diffusive Transport of Polymers Moments using Limiting Cases of the Maxwell-Stefan Model2022, Macromolecular Reaction Engineering
- F. Bienen, M. C. Paulisch, T. Mager, J. Osiewacz, M. Nazari, M. Osenberg, … K. A. FriedrichInvestigating the electrowetting of silver-based gas-diffusion electrodes during oxygen reduction reaction with electrochemical and optical methods2022
- W. Säckel, U. NiekenSimulation of Morphology Evolution in Spray Drying of Suspensions by a Meshfree Approach2022, Chemie Ingenieur Technik 93(3)
- F. Almasi, M. Hopp-Hirschler, A. Hadjadj, U. Nieken, M. S. ShadlooCoupled Electrohydrodynamic and Thermocapillary Instability of Multi-Phase Flows Using an Incompressible Smoothed Particle Hydrodynamics Method2022, energies 15(7), 2576
2021
- L. Maier, M. Scherle, M. Hopp-Hirschler, U. NiekenEffective transport parameters of porous media from 2D microstructure images2021, International journal of heat and mass transfer 175
- M. Scherle, J. Liedtke, U. NiekenOptimal Sequencing and Adsorbent Design of Multi-Bed Adsorption Chillers2021, 117689
- M. Schlüter, S. Herres-Pawlis, U. Nieken, U. Tuttlies, D. BotheSmall-Scale Phenomena in Reactive Bubbly Flows: Experiments, Numerical Modeling, and Applications2021, Annual Review of Chemical and Biomolecular Engineering 12(1), 625--643
- M. Schlüter, D. Bothe, S. Herres-Pawlis, U. NiekenReactive Bubbly Flows - Final Report of the DFG Priority Program 17402021, Springer Nature Switzerland, ISBN: 978-3-030-72360-6
2020
- L. Träger, J. Gläsel, M. Scherle, J. Hartmann, U. Nieken, B. J. M. EtzoldCarbon-Methanol Based Adsorption Heat Pumps: Identifying Accessible Parameter Space with Carbide-Derived Carbon Model Materials2020, Chemical Engineering & Technology 43(9), 1876--1883
- M. Scherle, U. NiekenSimultaneous Optimization of Process Operational and Material Parameters for a 2-Bed Adsorption Refrigeration Process2020, ChemEngineering 4(2),31
- J. Xia, G. Eigenberger, H. Strathmann, U. NiekenAcid-Base Flow Battery, Based on Reverse Electrodialysis with Bi-Polar Membranes: Stack Experiments2020, Processes 8(1), 99
- C. Walter, S. Martens, C. Zander, C. Mehring, U. NiekenHeat Transfer through Wire Cloth Micro Heat Exchanger2020, Energies 13(14), 3567
- S. Gast, U. S. Tuttlies, U. NiekenKinetic study of the toluene oxidation in homogeneous liquid phase2020, Chemical Engineering Science 217, 115500
- P. Kunz, M. Paulisch, M. Osenberg, B. Bischof, I. Manke, U. NiekenPrediction of Electrolyte Distribution in Technical Gas Diffusion Electrodes: From Imaging to SPH Simulations2020, Transport in Porous Media
- C. Zander, K.-D. Hungenberg, T. Schall, C. Schwede, U. NiekenModeling Strategies for the Propagation of Terminal Double Bonds During the Polymerization of N-Vinylpyrrolidone and Experimental Validation2020, Macromolecular Reaction Engineering , 2000009
- M. Scherle, T. A. Nowak, U. NiekenAdsorptionskälte - Design strukturierter Adsorbens-Komposite für die adsorptive Kühlung (Tagungsband)2020, Deutsche Kälte- und Klimatagung, 19.11.-20.11.2020, online, ISBN: 978-3-932715-53-2
2019
- H. Dubbe, F. Bühner, U. NiekenRapid Estimation of NO Oxidation Kinetic Data from Experiments2019, Chemie Ingenieur Technik 91
- M. Hopp-Hirschler, M. Safdari Shadloo, U. NiekenViscous fingering phenomena in the early stage of polymer membrane formation2019, Journal of Fluid Mechanics 864, 97–140
- M. Hopp-Hirschler, U. NiekenModeling of pore formation in phase inversion processes: analysis of pore formation mechanism2019, Journal of Thermal Analysis and Calorimetry
- J. Matthies, M. Hopp-Hirschler, S. Uebele, T. Schiestel, M. Osenberg, I. Manke, U. NiekenUp-scaling transport in porous polymer membranes using asymptotic homogenization2019, International Journal of Numerical Methods for Heat & Fluid Flow 30, 266--289
- M. Hopp-Hirschler, J. Baz, N. Hansen, U. NiekenGeneralized Fickian approach for phase separating fluid mixtures in Smoothed Particle Hydrodynamics2019, Computers & Fluids 179, 78--90
- P. Deglmann, M. Hellmund, K.-D. Hungenberg, U. Nieken, C. Schwede, C. ZanderSide Reactions in Aqueous Phase Polymerization of N-Vinyl-Pyrrolidone as Possible Source for Fouling2019, Macromolecular Reaction Engineering , 1900021
- U. NiekenPrediction of Electrolyte Distribution in Technical Gas Diffusion Electrodes: From Imaging to SPH SimulationsVortrag, ModVAL, 12.03.-13.03.2019, Braunschweig
2018
- M. Hopp-Hirschler, M. S. Shadloo, U. NiekenA Smoothed Particle Hydrodynamics approach for thermo-capillary flows2018, Computers & Fluids 176, 1--19
- C. Zander, M. Hopp-Hirschler, U. NiekenMesoscopic simulation and characterization of the morphological evolution in phase separating fluid mixtures2018, Computational Materials Science 149, 267--281
- H. Dubbe, E. Holl, A. Spierings, K. Wegener, U. NiekenDevelopment of a spatially uniform low-temperature hydrogen combustor2018, Journal of Zhejiang University-SCIENCE A 19(10), 735--745
- R. Sadeghi, M. S. Shadloo, M. Hopp-Hirschler, A. Hadjadj, U. NiekenThree-dimensional lattice Boltzmann simulations of high density ratio two-phase flows in porous media2018, Computers & Mathematics with Applications 75(7), 2445--2465
- H. Dubbe, G.Eigenberger, U. NiekenModeling of Conversion Hysteresis Phenomena for Pt/Pd‐based Diesel Oxidation Catalysts2018, Chemie Ingenieur Technik 90, 625--633
- M. Hopp-Hirschler, U. NiekenModeling of pore formation in phase inversion processes: Model and numerical results2018, Journal of Membrane Science 564, 820--831
- P. Kunz, S. M. Hassanizadeh, U. NiekenA Two-Phase SPH Model for Dynamic Contact Angles Including Fluid--Solid Interactions at the Contact Line2018, Transport in Porous Media 122(2), 253--277
- D. Colombet, D. Legendre, U. Tuttlies, A. Cockx, P. Guiraud, U. Nieken, … C. DanielOn single bubble mass transfer in a volatile liquid2018, International Journal of Heat and Mass Transfer 125, 1144--1155
- U. Nieken, J. Xia, G. Eigenberger, H. StrathmannA flow battery based on reverse electrodialysis with bipolar membranesVortrag, EuroMembrane, 09.07.-13.07.2018, Valencia, Spain
2017
- J. Bickel, B. Odendall, G. Eigenberger, U. NiekenOxygen storage dominated three-way catalyst modeling for fresh catalysts2017, Chemical Engineering Science 160, 34--53
- M. Hirschler, G. Oger, U. Nieken, D. L. TouzéModeling of droplet collisions using Smoothed Particle Hydrodynamics2017, International Journal of Multiphase Flow 95, 175--187
- S. Gast, J. H. Matthies, U. S. Tuttlies, U. NiekenA novel experimental setup for kinetic studies of toluene oxidation in homogeneous liquid phase2017, Chemical Engineering & Technology 5/2017
- C. Zander, M. Hellmund, C. Schwede, U. NiekenUntersuchungen zur Belagsbildung bei der Polymerisation von N-Vinylpyrrolidon in kontinuierlich betriebenen ReaktorsystemenVortrag, Würzburg, Deutschland
- U. NiekenSimulation of structure formation of open-porous materialsVortrag, Third Indo-German Workshop, 23.02.-26.02.2016, Indian Institute of Technology Guwahaiti
- P. Kunz, U. NiekenStudy of two-phase flow at low Reynolds numbers: Extension of contact line dynamics to creeping flowProceedings of the 12th International SPHERIC Workshop, 13.06.-15.06.2017, Ourense, Spain
- M. Hirschler, U. NiekenStudy of implicit time-integration in truly incompressible SPHProceedings of the 12th International SPHERIC Workshop, 13.06.-15.06.2017, Ourense, Spain
2016
- H. Dubbe, F. Bühner, G. Eigenberger, U. NiekenHysteresis Phenomena on Platinum and Palladium-based Diesel Oxidation Catalysts (DOCs)2016, Emission Control Science and Technology 2(3), 137--144
- M. Hirschler, P. Kunz, M. Huber, F. Hahn, U. NiekenOpen boundary conditions for ISPH and their application to micro-flow2016, Journal of Computational Physics 307, 614--633
- M. Hirschler, W. Säckel, U. NiekenOn Maxwell–Stefan diffusion in Smoothed Particle Hydrodynamics2016, International Journal of Heat and Mass Transfer 103, 548--554
- M. Huber, D. Dobesch, P. Kunz, M. Hirschler, U. NiekenInfluence of orifice type and wetting properties on bubble formation at bubble column reactors2016, Chemical Engineering Science 152, 151--162
- M. N. Ess, H. Bladt, W. Mühlbauer, S. Seher, C. Zöllner, S. Lorenz, … R. NiessnerReactivity and structure of soot generated at varying biofuel content and engine operating parameters2016, Combustion and Flame 163, 157--169
- S. Seher, M. N. Ess, H. Bladt, R. Niessner, G. Eigenberger, U. NiekenA comparison of diesel soot oxidation rates measured with two different isothermal set-ups2016, Journal of Aerosol Science 91, 94--100
- R. Kelling, G. Eigenberger, U. NiekenCeramic counterflow reactor for autothermal dry reforming at high temperatures2016, Catalysis Today 273, 196--204
- H. Dubbe, G. Eigenberger, U. NiekenHysteresis Phenomena on Pt- and Pd-Diesel Oxidation Catalysts: Experimental Observations2016, Topics in Catalysis 59(10), 1054--1058
- M. Huber, F. Keller, W. Säckel, M. Hirschler, P. Kunz, S. M. Hassanizadeh, U. NiekenOn the physically based modeling of surface tension and moving contact lines with dynamic contact angles on the continuum scale2016, Journal of Computational Physics 310, 459--477
- P. Kunz, I. M. Zarikos, N. K. Karadimitriou, M. Huber, U. Nieken, S. M. HassanizadehStudy of Multi-phase Flow in Porous Media: Comparison of SPH Simulations with Micro-model Experiments2016, Transport in Porous Media 114(2), 581--600
- H. Dubbe, F. Bühner, G. Eigenberger, U. NiekenHysteresis Phenomena on Platinum and Palladium-based Diesel Oxidation Catalysts (DOCs)2016, Emission Control Science and Technology 2(3), 137--144
- P. Kunz, M. Hirschler, M. Huber, U. NiekenInflow/outflow with Dirichlet boundary conditions for pressure in ISPH2016, Journal of Computational Physics 326, 171--187
- W. Säckel, U. NiekenStructure Formation within Spray-Dried Droplets; Mathematical Modelling of Spray Polymerisation2016, Process-Spray: Functional Particles Produced in Spray Processes, Springer, ISBN: 978-3319812687
- U. NiekenEinfluss der Rußreaktivität auf die DPF-RegenerationVortrag, FVV Frühjahrstagung, 15.04.-16.04.2016, Bad Neuenahr, Germany
2015
- R. Kelling, H. Dubbe, G. Eigenberger, U. NiekenCeramic Counterflow Reactor for Efficient Conversion of CO2 to Carbon-Rich Syngas2015, Chemie Ingenieur Technik 87, 726--733
- U. NiekenOxygen storage based reaction kinetics for three-way catalyst modelingVortrag, European Symposium on Chemical Reaction Engineering – ESCRE 2015, 27.10.-30.10.2015, Fürstenfeld, Germany
- M. Hirschler, M. Huber, G. Oger, P. Kunz, D. L. Touze, U. NiekenModeling of quantitative droplet dynamics with coalescence-bouncing transition in a pseudo-single-phase system using ISPH and WCSPHProceedings of the 10th International SPHERIC Workshop, 16.06.-18.06.2015, Parma, Italy
2014
- B. R. Formisano, C. Bonten, M. Weinert, P. Günther, U. NiekenExtrudierte zeolithische Wabenkörper für Sorptionsspeicher2014, EuroHeat&Power 43, 17--19
- P. Günther, P. Kunz, R. Stierle, G. Eigenberger, U. NiekenProzesssimulation einer Adsorptionskältemaschine: True-Moving-Bed-Approximation2014, Chemie Ingenieur Technik 86, 112--118
- R. Kelling, J. Bickel, U. Nieken, P. A. ZegelingAn adaptive moving grid method for solving convection dominated transport equations in chemical engineering2014, Computers & Chemical Engineering 71, 467--477
- W. Säckel, U. NiekenModellierung reaktiver Sprühtrocknungsprozesse am Beispiel der Sprühpolymerisation2014, Chemie Ingenieur Technik 86, 438--448
- M. Hirschler, M. Huber, W. Säckel, P. Kunz, U. NiekenAn Application of the Cahn-Hilliard Approach to Smoothed Particle Hydrodynamics2014, Mathematical Problems in Engineering 2014, 10
- M. Krone, M. Huber, K. Scharnowski, M. Hirschler, D. Kauker, G. Reina, … T. ErtlEvaluation of Visualizations for Interface Analysis of SPH2014, The Eurographics Association, ISBN: 978-3-905674-69-9
- U. NiekenReaction Kinetics for Aged Catalysts with Storage ComponentsVortrag, 5th Annual Global Congress of Catalysis - 2014, 21.09.-23.09.2014, Qingdao, China
- W. Säckel, M. Hirschler, M. Huber, P. Kunz, U. NiekenModelling of Structure Evolution in Spray Dried Particles using the Meshfree SPH MethodProceedings of the 26th ILASS, 08.09.-10.09.2014, Bremen, Germany
- W. Säckel, M. Huber, M. Hirschler, P. Kunz, U. NiekenDrying and Morphology Evolution of Single Droplets in Spray ProcessesProceedings of the 9th SPHERIC International Workshop, 03.06.-05.06.2014, Paris, France
- F. Beck, M. Hirschler, U. Nieken, P. EberhardA study of truly incompressible and weakly compressible Smoothed Particle Hydrodynamics methods to model incompressible flows with free surfacesProceedings of the 85th Annual Meeting of the International Association of Applied Mathematics and Mechanics, 2014, Erlangen, Germany
- H. Bladt, W. Mühlbauer, S. Seher, M. Bürger, M. Eß, Ch. Zöllner, … U. JanoskeEinfluss der Rußreaktivität auf die DPF-RegenerationFVV Abschlussbericht
2013
- M. Rink, G. Eigenberger, U. NiekenComparison of Two Different Heat-Integrated Exhaust Purification Devices for Monovalent CNG Engines2013, Topics in Catalysis 56(1), 421--426
- K. Hauff, W. Boll, S. Tischer, D. Chan, U. Tuttlies, G. Eigenberger, … U. NiekenMacro- and Microkinetic Simulation of Diesel Oxidation Catalyst: Effect of Aging, Noble Metal Loading and Platinum Oxidation2013, Chemie Ingenieur Technik 85, 673--685
- U. N. W. SäckelModelling of Spray Polymerisation Processes2013, Macromolecular Symposia 333, 297--304
- D. Chan, K. Hauff, U. Nieken, O. DeutschmannVereinfachte Modellanpassung für gealterte Dieseloxidations- und NOx-Speicherkatalysatoren2013, MTZ - Motortechnische Zeitschrift 74(12), 1002--1009
- M. Rink, G. Eigenberger, U. NiekenHeat-Integrated Exhaust Purification for Natural Gas Engines2013, Chemie Ingenieur Technik 85, 656--663
- K. Hauff, U. Tuttlies, G. Eigenberger, U. NiekenReaction Kinetics of Aged NOx Storage Catalysts2013, Industrial & Engineering Chemistry Research 52(25), 8399--8409
- K. Hauff, H. Dubbe, U. Tuttlies, G. Eigenberger, U. NiekenPlatinum oxide formation and reduction during NO oxidation on a diesel oxidation catalyst—Macrokinetic simulation2013, Applied Catalysis B: Environmental 129, 273--281
- M. Hirschler, F. Keller, M. Huber, W. Säckel, U. NiekenEin gitterfreies Berechnungsverfahren zur Simulation von Koaleszenz in Mehrphasensystemen2013, Chemie Ingenieur Technik 85, 1099--1106
- W. Säckel, M. Huber, M. Hirschler, P. Kunz, U. NiekenModelling of Morphology Evolution in Spray Drying Processes using Meshfree Single Droplet Drying ModelsProceedings of the 4th European Drying Conference, 02.10.-04.10.2013, Paris, France
2012
- S. Dwenger, G. Eigenberger, U. NiekenMeasurement of Capillary Pressure--Saturation Relationships Under Defined Compression Levels for Gas Diffusion Media of PEM Fuel Cells2012, Transport in Porous Media 91(1), 281--294
- M. Rink, G. Eigenberger, U. Nieken, U. TuttliesOptimization of a heat-integrated exhaust catalyst for CNG engines2012, Catalysis Today 188(1), 113--120
- K. Hauff, U. Tuttlies, G. Eigenberger, U. NiekenPlatinum oxide formation and reduction during NO oxidation on a diesel oxidation catalyst – Experimental results2012, Applied Catalysis B: Environmental 123–124, 107--116
- E. Lopez, V. Gepert, A. Gritsch, U. Nieken, G. EigenbergerEthanol Steam Reforming Thermally Coupled with Fuel Combustion in a Parallel Plate Reactor2012, Industrial & Engineering Chemistry Research 51(11), 4143--4151
- W. Säckel, U. NiekenModellierung der Prozesse in Einzeltropfen bei Sprühtrocknungsprozessen mit Hilfe gitterfreier SimulationsverfahrenProceedings des 10. Workshops über Sprays, 21.05.-22.05.2012, Berlin, Germany
- W. Säckel, F. Keller, U. NiekenModelling of Single Droplet Drying and Morphology Evolution using Meshfree Simulation MethodsProceedings of the 12th International Conference of Liquid Atomisation and Spray Systems, 02.09.-06.09.2012, Heidelberg, Germany
2011
- F. Keller, U. NiekenApplication of Smoothed Particle Hydrodynamics to Structure Formation in Chemical Engineering2011, Springer Berlin Heidelberg, Berlin, Heidelberg, ISBN: 978-3-642-16229-9
- U. Nieken, F. Keller, W. Säckel, M. HuberSimulation of Morphogenesis of Open-Porous MaterialsVortrag, BASF Forum Process Technology 2011, 24.02.2011, Heidelberg, Germany
2010
- F. Keller, U. NiekenSimulation der Morphologieausbildung von offenporigen Materialien2010, Chemie Ingenieur Technik 82, 1391
- J. Laackmann, R. Sedelmayer, L. Cepelyte, K. Walag, W. Pauer, H.-U. Moritz, … U. NiekenExperimental investigation and numerical simulation of spray processes2010, Macromolecular Symposia 302, 235--244
Seit Oktober 2004
Leiter des Instituts für Chemische Verfahrenstechnik der Universität Stuttgart
1980-1986
Studium der Verfahrenstechnik an der Universität Stuttgart.
Vertiefung in Regelungstechnik und Thermischer Verfahrenstechnik
1986-1993
Wissenschaftlicher Mitarbeiter am Institut für Chemische Verfahrenstechnik bei
Professor Eigenberger, Universität Stuttgart
März 1993
Promotion
1993-1998
Mitarbeiter der BASF-AG im Bereich der Technischen Entwicklung
Februar 1998
Wechsel in das Kunststofflabor der BASF