Thomas Koller
Dr.-Ing. Thomas M. Koller
Research focus of the group “Thermophysical Properties of Multiphase Systems in Process Engineering”
Research activities of the group focus on the characterization of multiphase systems relevant in process engineering via the determination of their thermophysical properties. The main interest is directed towards the study of interfaces. Objects of investigation are multiphase systems in form of vapor-liquid systems where, e.g., liquid organic hydrogen carriers are of current interest, liquid-liquid systems with partially miscible liquid phases, and dispersions of solid or liquid particles in a continuous liquid phase. For obtaining reliable information about the thermophysical properties of related systems including interfacial tension, viscosity, or thermal conductivity and for developing relations with the fluid structure on a microscopic level, advanced experimental and modeling techniques are applied and further developed.
Publications:
2023
Effective thermal conductivity of microemulsions consisting of water micelles in n‐decane
In: International Journal of Heat and Mass Transfer 200 (2023), Article No.: 123526
ISSN: 0017-9310
DOI: 10.1016/j.ijheatmasstransfer.2022.123526
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Influence of dissolved argon or carbon dioxide on the viscosity and surface tension of the imidazolium-based ionic liquids [OMIM][PF6] or [m(PEG2)2IM]I
In: Journal of Molecular Liquids 377 (2023), Article No.: 121491
ISSN: 0167-7322
DOI: 10.1016/j.molliq.2023.121491
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2022
Effective Thermal Conductivity of Nanofluids Containing Silicon Dioxide or Zirconium Dioxide Nanoparticles Dispersed in a Mixture of Water and Glycerol
In: International Journal of Thermophysics 43 (2022), Article No.: 167
ISSN: 0195-928X
DOI: 10.1007/s10765-022-03084-z
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Viscosity and Surface Tension of High-Viscosity Standard Tris(2-ethylhexyl) Trimellitate Close to 0.1 MPa between 273 and 523 K by Surface Light Scattering
In: Journal of Chemical and Engineering Data 67 (2022), p. 644-660
ISSN: 0021-9568
DOI: 10.1021/acs.jced.1c00946
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Viscosity and Surface Tension of Fluorene and Perhydrofluorene Close to 0.1 MPa up to 573 K
In: Journal of Chemical and Engineering Data 67 (2022), p. 3085–3096
ISSN: 0021-9568
DOI: 10.1021/acs.jced.2c00519
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Viscosity, surface tension, and density of the liquid organic hydrogen carrier system based on diphenylmethane, biphenyl, and benzophenone
In: International Journal of Hydrogen Energy 47 (2022), p. 22078-22092
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2022.04.275
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Viscosity, surface tension, and density of binary mixtures of the liquid organic hydrogen carrier diphenylmethane with benzophenone
In: International Journal of Hydrogen Energy 47 (2022), p. 15789-15806
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2022.03.051
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Influence of dissolved hydrogen on the viscosity and interfacial tension of the liquid organic hydrogen carrier system based on diphenylmethane by surface light scattering and molecular dynamics simulations
In: International Journal of Hydrogen Energy 47 (2022), p. 39163-39178
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2022.09.078
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Viscosity and Interfacial Tension of Binary Mixtures Consisting of Linear, Branched, Cyclic, or Oxygenated Hydrocarbons with Dissolved Gases Using Surface Light Scattering and Equilibrium Molecular Dynamics Simulations
In: International Journal of Thermophysics 43 (2022), Article No.: 88
ISSN: 0195-928X
DOI: 10.1007/s10765-022-03012-1
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Evaluation strategy towards an accurate determination of viscosity and interfacial tension by surface light scattering in presence of line-broadening effects
In: Journal of Colloid and Interface Science 623 (2022), p. 595-606
ISSN: 0021-9797
DOI: 10.1016/j.jcis.2022.05.043
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Accurate determination of viscosity and surface tension by surface light scattering in the presence of a contribution from the rotational flow in the bulk of the fluid
In: Journal of Colloid and Interface Science 626 (2022), p. 899-915
ISSN: 0021-9797
DOI: 10.1016/j.jcis.2022.06.129
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Effect of the degree of hydrogenation on the viscosity, surface tension, and density of the liquid organic hydrogen carrier system based on diphenylmethane
In: International Journal of Hydrogen Energy 47 (2022), p. 6111-6130
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2021.11.198
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Bis-polyethylene glycol-functionalized imidazolium ionic liquids: A multi-method approach towards bulk and surface properties
In: Journal of Ionic Liquids 2 (2022), p. 100041
ISSN: 2772-4220
DOI: 10.1016/j.jil.2022.100041
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Combined Surface Light Scattering and Pendant-Drop Experiments for the Determination of Viscosity and Surface Tension of High-Viscosity Fluids Demonstrated for Ionic Liquids
In: International Journal of Thermophysics 43 (2022), Article No.: 178
ISSN: 0195-928X
DOI: 10.1007/s10765-022-03103-z
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2021
Viscosity and Surface Tension of Benzene at Saturation Conditions from Surface Light Scattering
In: International Journal of Thermophysics 42 (2021), Article No.: 159
ISSN: 0195-928X
DOI: 10.1007/s10765-021-02909-7
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Viscosity and Interfacial Tension of Binary Mixtures of n-Hexadecane with Dissolved Gases Using Surface Light Scattering and Equilibrium Molecular Dynamics Simulations
In: Journal of Chemical and Engineering Data 66 (2021), p. 3205-3218
ISSN: 0021-9568
DOI: 10.1021/acs.jced.1c00289
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Surface light scattering in reflection geometry: Capabilities and limitations
In: Applied Optics 60 (2021), p. 9042-9053
ISSN: 1559-128X
DOI: 10.1364/AO.440071
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Diffusivities in Binary Mixtures of n-Hexane or 1-Hexanol with Dissolved CH4, Ne, Kr, R143a, SF6, or R236fa Close to Infinite Dilution
In: Journal of Chemical and Engineering Data 66 (2021), p. 2218-2232
ISSN: 0021-9568
DOI: 10.1021/acs.jced.1c00084
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2020
Thermal Conductivity of Hydrocarbon Liquid Organic Hydrogen Carrier Systems: Measurement and Prediction
In: Journal of Chemical and Engineering Data 65 (2020), p. 5003-5017
ISSN: 0021-9568
DOI: 10.1021/acs.jced.0c00613
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Effective Thermal Conductivity of Nanofluids: Measurement and Prediction
In: International Journal of Thermophysics 41 (2020), Article No.: 55
ISSN: 0195-928X
DOI: 10.1007/s10765-020-2621-2
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Thermophysical properties of diphenylmethane and dicyclohexylmethane as a reference liquid organic hydrogen carrier system from experiments and molecular simulations
In: International Journal of Hydrogen Energy 45 (2020), p. 28903-28919
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2020.07.261
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Characterization of Long Linear and Branched Alkanes and Alcohols for Temperatures up to 573.15 K by Surface Light Scattering and Molecular Dynamics Simulations
In: Journal of Physical Chemistry B 124 (2020), p. 4146-4163
ISSN: 1520-6106
DOI: 10.1021/acs.jpcb.0c01740
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Diffusivities in Binary Mixtures of [AMIM][NTf2] Ionic Liquids with the Dissolved Gases H2, He, N2, CO, CO2, or Kr Close to Infinite Dilution
In: Journal of Chemical and Engineering Data 65 (2020), p. 4116–4129
ISSN: 0021-9568
DOI: 10.1021/acs.jced.0c00430
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Surface Tension and Viscosity of Binary Mixtures of the Fluorinated and Non-fluorinated Ionic Liquids [PFBMIm][PF6] and [C4C1Im][PF6] by the Pendant Drop Method and Surface Light Scattering
In: International Journal of Thermophysics 41 (2020), Article No.: 144
ISSN: 0195-928X
DOI: 10.1007/s10765-020-02720-w
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Mutual and Thermal Diffusivities as Well as Fluid-Phase Equilibria of Mixtures of 1-Hexanol and Carbon Dioxide
In: Journal of Physical Chemistry B 124 (2020), p. 2482-2494
ISSN: 1520-6106
DOI: 10.1021/acs.jpcb.0c00646
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2019
Translational and Rotational Diffusion Coefficients of Gold Nanorods Dispersed in Mixtures of Water and Glycerol by Polarized Dynamic Light Scattering
In: Journal of Physical Chemistry B 123 (2019), p. 9491-9502
ISSN: 1520-6106
DOI: 10.1021/acs.jpcb.9b08274
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Enhancement of the predictive power of molecular dynamics simulations for the determination of self-diffusion coefficient and viscosity demonstrated for propane
In: Fluid Phase Equilibria 496 (2019), p. 69-79
ISSN: 0378-3812
DOI: 10.1016/j.fluid.2019.05.019
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Self-diffusion coefficient and viscosity of methane and carbon dioxide via molecular dynamics simulations based on new ab initio-derived force fields
In: Fluid Phase Equilibria 481 (2019), p. 15-27
ISSN: 0378-3812
DOI: 10.1016/j.fluid.2018.10.011
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Fick diffusion coefficients of binary fluid mixtures consisting of methane, carbon dioxide, and propane via molecular dynamics simulations based on simplified pair-specific ab initio-derived force fields
In: Fluid Phase Equilibria 502 (2019), Article No.: 112257
ISSN: 0378-3812
DOI: 10.1016/j.fluid.2019.112257
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Liquid Viscosity and Interfacial Tension of Binary and Ternary Mixtures Containing n-Octacosane by Surface Light Scattering
In: Journal of Chemical and Engineering Data 64 (2019), p. 817-826
ISSN: 0021-9568
DOI: 10.1021/acs.jced.8b01139
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Liquid Viscosity and Surface Tension of n-Hexane, n-Octane, n-Decane, and n-Hexadecane up to 573 K by Surface Light Scattering
In: Journal of Chemical and Engineering Data 64 (2019), p. 4116-4131
ISSN: 0021-9568
DOI: 10.1021/acs.jced.9b00525
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Interfacial tensions and viscosities in multiphase systems by surface light scattering (SLS)
In: Journal of Colloid and Interface Science 538 (2019), p. 671-681
ISSN: 0021-9797
DOI: 10.1016/j.jcis.2018.11.095
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Interfacial Tension and Liquid Viscosity of Binary Mixtures of n-Hexane, n-Decane, or 1-Hexanol with Carbon Dioxide by Molecular Dynamics Simulations and Surface Light Scattering
In: International Journal of Thermophysics 40 (2019), Article No.: 79
ISSN: 0195-928X
DOI: 10.1007/s10765-019-2544-y
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Diffusivities in 1-alcohols containing dissolved H2, He, N2, CO, or CO2 close to infinite dilution
In: Journal of Physical Chemistry B 123 (2019), p. 8777–8790
ISSN: 1520-6106
DOI: 10.1021/acs.jpcb.9b06211
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2018
Thermal, Mutual, and Self-Diffusivities of Binary Liquid Mixtures Consisting of Gases Dissolved in n-Alkanes at Infinite Dilution
In: Journal of Physical Chemistry B 122 (2018), p. 3163-3175
ISSN: 1520-6106
DOI: 10.1021/acs.jpcb.8b00733
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Viscosity and Surface Tension of Branched Alkanes 2-Methylnonane and 4-Methylnonane
In: Journal of Chemical and Engineering Data 63 (2018), p. 2833-2839
ISSN: 0021-9568
DOI: 10.1021/acs.jced.8b00163
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Influence of Liquid Structure on Fickian Diffusion in Binary Mixtures of n-Hexane and Carbon Dioxide Probed by Dynamic Light Scattering, Raman Spectroscopy, and Molecular Dynamics Simulations
In: Journal of Physical Chemistry B 122 (2018), p. 7122-7133
ISSN: 1520-6106
DOI: 10.1021/acs.jpcb.8b03568
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2017
Simultaneous Analysis of Equilibrium Fluctuations at the Surface and in the Bulk of a Binary Liquid Mixture by Dynamic Light Scattering
In: Journal of Physical Chemistry B 121 (2017), p. 10950-10956
ISSN: 1520-6106
DOI: 10.1021/acs.jpcb.7b09770
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Liquid Viscosity and Surface Tension of n-Dodecane, n-Octacosane, Their Mixtures, and a Wax between 323 and 573 K by Surface Light Scattering
In: Journal of Chemical and Engineering Data 62 (2017), p. 3319-3333
ISSN: 0021-9568
DOI: 10.1021/acs.jced.7b00363
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Thermophysical Properties of Homologous Tetracyanoborate-Based Ionic Liquids Using Experiments and Molecular Dynamics Simulations
In: Journal of Physical Chemistry B 121 (2017), p. 4145-4157
ISSN: 1520-6106
DOI: 10.1021/acs.jpcb.6b12929
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A Simple Prediction Method for the Surface Tension of Ionic Liquids as a Function of Temperature
In: International Journal of Thermophysics 38 (2017)
ISSN: 0195-928X
DOI: 10.1007/s10765-017-2301-z
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2016
Effective thermal conductivity of nanofluids - A new model taking into consideration Brownian motion
In: International Journal of Heat and Mass Transfer 99 (2016), p. 532-540
ISSN: 0017-9310
DOI: 10.1016/j.ijheatmasstransfer.2016.03.129
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2015
Dynamic Viscosity of Tetracyanoborate- and Tricyanomethanide-Based Ionic Liquids by Dynamic Light Scattering
In: Industrial & Engineering Chemistry Research 54 (2015), p. 3071-3081
ISSN: 0888-5885
DOI: 10.1021/acs.iecr.5b00086
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Mutual and Self-Diffusivities in Binary Mixtures of [EMIM][B(CN)(4)] with Dissolved Gases by Using Dynamic Light Scattering and Molecular Dynamics Simulations
In: Journal of Physical Chemistry B 119 (2015), p. 8583-8592
ISSN: 1520-6106
DOI: 10.1021/acs.jpcb.5b02659
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Surface Tension of Tricyanomethanide- and Tetracyanoborate-Based lmidazolium Ionic Liquids by Using the Pendant Drop Method
In: Journal of Chemical and Engineering Data 60 (2015), p. 2665-2673
ISSN: 0021-9568
DOI: 10.1021/acs.jced.5b00303
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Viscosity of heavy n-alkanes and diffusion of gases therein based on molecular dynamics simulations and empirical correlations
In: Journal of Chemical Thermodynamics 91 (2015), p. 101-107
ISSN: 0021-9614
DOI: 10.1016/j.jct.2015.07.026
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2014
Simultaneous Determination of Thermal and Mutual Diffusivity of Binary Mixtures of n-Octacosane with Carbon Monoxide, Hydrogen, and Water by Dynamic Light Scattering
In: Journal of Physical Chemistry B 118 (2014), p. 3981-3990
ISSN: 1520-6106
DOI: 10.1021/jp500300y
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Measurement and Prediction of the Thermal Conductivity of Tricyanomethanide- and Tetracyanoborate-Based Imidazolium Ionic Liquids
In: International Journal of Thermophysics 35 (2014), p. 195-217
ISSN: 0195-928X
DOI: 10.1007/s10765-014-1617-1
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Mutual and Thermal Diffusivity of Binary Mixtures of the Ionic Liquids [BMIM][C(CN)(3)] and [BMIM][B(CN)(4)] with Dissolved CO2 by Dynamic Light Scattering
In: Journal of Physical Chemistry B 118 (2014), p. 4636-4646
ISSN: 1520-6106
DOI: 10.1021/jp501973s
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2013
Model development for the gas-to-liquid process based on molecular simulation and experimental measurements of physical properties
Computational Molecular Science and Engineering Forum 2013 - Core Programming Area at the 2013 AIChE Annual Meeting: Global Challenges for Engineering a Sustainable Future
URL: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84911487154&origin=inward
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Thermophysical Properties of the Ionic Liquids [EMIM][B(CN)(4)] and [HMIM][B(CN)(4)]
In: Journal of Physical Chemistry B 117 (2013), p. 8512-8523
ISSN: 1520-6106
DOI: 10.1021/jp400315h
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2012
Development of a united-atom force field for 1-ethyl-3-methylimidazolium tetracyanoborate ionic liquid
In: Molecular Physics 110 (2012), p. 1115-1126
ISSN: 0026-8976
DOI: 10.1080/00268976.2011.648965
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Viscosity, Interfacial Tension, Self-Diffusion Coefficient, Density, and Refractive Index of the Ionic Liquid 1-Ethyl-3-methylimidazolium Tetracyanoborate as a Function of Temperature at Atmospheric Pressure.
In: Journal of Chemical and Engineering Data 57 (2012), p. 828-835
ISSN: 0021-9568
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