Dipl.-Phys.Ing. Elmar Baumhögger - Kontakt (Universität Paderborn)

Apparatus for the measurement of the thermodynamic speed of sound of diethylene glycol and triethylene glycol

M.A. Javed, S. Vater, E. Baumhögger, T. Windmann, J. Vrabec, The Journal of Chemical Thermodynamics (2022), 106766

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Wässrige Aminozuckerlösungen als neue Lösungsmittel zur CO2-Abscheidung

I. Hami Dindar, E. Baumhögger, N. Lutters, E. Kenig, in: Jahrestreffen der ProcessNet Fachgruppen Fluidverfahrenstechnik und Hochdruckverfahrenstechnik, 2022

Experimental investigation of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as a working fluid

W. Khider Abbas Abbas, E. Baumhögger, J. Vrabec, Energy Conversion and Management: X (2022), 100244

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Experimental study of two cascaded organic Rankine cycles with varying working fluids

W.K.A. Abbas, M. Linnemann, E. Baumhögger, J. Vrabec, Energy Conversion and Management (2021), 113818

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Thermodynamic Properties of Methyl Diethanolamine

T. Neumann, E. Baumhögger, R. Span, J. Vrabec, M. Thol, International Journal of Thermophysics (2021), 43(1), 10

Abstract

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<jats:title>Abstract</jats:title><jats:p>The homogeneous density of the liquid phase is experimentally investigated for methyl diethanolamine. Data are obtained along five isotherms in a temperature range between 300 K and 360 K for pressures up to 95 MPa. Two different apparatuses are used to measure the speed of sound for the temperatures between 322 K and 450 K with a maximum pressure of 95 MPa. These measurements and literature data are used to develop a fundamental equation of state for methyl diethanolamine. The model is formulated in terms of the Helmholtz energy and allows for the calculation of all thermodynamic properties in gaseous, liquid, supercritical, and saturation states. The experimental data are represented within their uncertainties. The physical and extrapolation behavior is validated qualitatively to ensure reasonable calculations outside of the range of validity. Based on the experimental datasets, the equation of state is valid for temperatures from 250 K to 750 K and pressures up to 100 MPa.</jats:p>

Determining the heat flow through the cabinet walls of household refrigerating appliances

A. Paul, E. Baumhögger, A. Elsner, L. Moczarski, M. Reineke, G. Sonnenrein, C. Hueppe, R. Stamminger, H. Hoelscher, H. Wagner, U. Gries, A. Freiberger, W. Becker, J. Vrabec, International Journal of Refrigeration (2021), pp. 235-242

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Impact of aging on the energy efficiency of household refrigerating appliances

A. Paul, E. Baumhögger, A. Elsner, M. Reineke, C. Hueppe, R. Stamminger, H. Hoelscher, H. Wagner, U. Gries, W. Becker, J. Vrabec, Applied Thermal Engineering (2021), 205, 117992

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Measurement procedure for acoustic absorption and bulk viscosity of liquids

L. Claes, R.S. Chatwell, E. Baumhögger, T. Hetkämper, H. Zeipert, J. Vrabec, B. Henning, Measurement (2021), 109919

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Improving the performance of household refrigerating appliances through the integration of phase change materials in the context of the new global refrigerator standard IEC 62552:2015

G. Sonnenrein, E. Baumhögger, A. Elsner, A. Morbach, M. Neukötter, A. Paul, J. Vrabec, International Journal of Refrigeration (2020)

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Density and Thermodynamic Speed of Sound of Liquid Vinyl Chloride

M.A. Javed, M. Rüther, E. Baumhögger, J. Vrabec, Journal of Chemical & Engineering Data (2020)

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Reduction of systematic measurement deviation in acoustic absorption measurement systems

L. Claes, E. Baumhögger, T. Rüther, J. Gierse, T. Tröster, B. Henning, in: Fortschritte der Akustik - DAGA 2020, 2020, pp. 1077-1080

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Bestimmung von Wärmeverlusten in Haushaltskältegeräten

A. Paul, L. Moczarski, M. Gieselmann, M. Reineke, A. Elsner, E. Baumhögger, G. Sonnenrein, J. Vrabec, Deutscher Kälte- und Klimatechnischer Verein e.V. , 2019

Henry’s Law Constant of Noble Gases in Water, Methanol, Ethanol, and Isopropanol by Experiment and Molecular Simulation

M. Linnemann, P.A. Nikolaychuk, Y.M. Muñoz-Muñoz, E. Baumhögger, J. Vrabec, Journal of Chemical & Engineering Data (2019), pp. 1180-1188

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Acoustic absorption measurement for the determination of the volume viscosity of pure fluids / Messverfahren für die akustischen Absorption zur Bestimmung der Volumenviskosität reiner Fluide

L. Claes, L.M. Hülskämper, E. Baumhögger, N. Feldmann, R.S. Chatwell, J. Vrabec, B. Henning, tm - Technisches Messen (2019), pp. 2-6

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Thermodynamic Properties of Dodecamethylpentasiloxane, Tetradecamethylhexasiloxane, and Decamethylcyclopentasiloxane

M. Thol, M.A. Javed, E. Baumhögger, R. Span, J. Vrabec, Industrial & Engineering Chemistry Research (2019), pp. 9617-9635

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Thermodynamic Speed of Sound Data for Liquid and Supercritical Alcohols

M.A. Javed, E. Baumhögger, J. Vrabec, Journal of Chemical & Engineering Data (2019), pp. 1035-1044

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Thermodynamic speed of sound of xenon

M.A. Javed, E. Baumhögger, J. Vrabec, The Journal of Chemical Thermodynamics (2019), 105933

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Quantification of frequency-dependent absorption phenomena

L. Claes, S. Johannesmann, E. Baumhögger, B. Henning, in: 2019 International Congress on Ultrasonics, 2019

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Speed of Sound Measurements and a Fundamental Equation of State for Hydrogen Chloride

M. Thol, F.H. Dubberke, E. Baumhögger, R. Span, J. Vrabec, Journal of Chemical & Engineering Data (2018), pp. 2533-2547

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Speed of Sound Measurements and a Fundamental Equation of State for Hydrogen Chloride

M. Thol, F.H. Dubberke, E. Baumhögger, R. Span, J. Vrabec, Journal of Chemical & Engineering Data (2018), pp. 2533-2547

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Experimental setup of a cascaded two-stage organic Rankine cycle

F.H. Dubberke, M. Linnemann, W.K. Abbas, E. Baumhögger, K. Priebe, M. Roedder, M. Neef, J. Vrabec, Applied Thermal Engineering (2017), pp. 958-964

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Experimental and Computational Study on the Solubility of Argon in Propan-2-ol at High Temperatures

P.A. Nikolaychuk, M. Linnemann, Y.M. Muñoz-Muñoz, E. Baumhögger, J. Vrabec, Chemistry Letters (2017), pp. 990-991

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Speed of Sound of Oxygen in Supercritical States up to 500 K and 100 MPa

F.H. Dubberke, M. Riepold, E. Baumhögger, J. Vrabec, Journal of Chemical & Engineering Data (2016), pp. 1632-1636

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Copolymer-bound phase change materials for household refrigerating appliances: experimental investigation of power consumption, temperature distribution and demand side management potential

G. Sonnenrein, E. Baumhögger, A. Elsner, K. Fieback, A. Morbach, A. Paul, J. Vrabec, International Journal of Refrigeration (2015), 60, pp. 166-173

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Copolymer-bound phase change materials for household refrigerating appliances: experimental investigation of power consumption, temperature distribution and demand side management potential

G. Sonnenrein, E. Baumhögger, A. Elsner, K. Fieback, A. Morbach, A. Paul, J. Vrabec, International Journal of Refrigeration (2015), pp. 166-173

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Burst design and signal processing for the speed of sound measurement of fluids with the pulse-echo technique

F.H. Dubberke, E. Baumhögger, J. Vrabec, Review of Scientific Instruments (2015), 054903

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Reducing the power consumption of household refrigerators through the integration of latent heat storage elements in wire-and-tube condensers

G. Sonnenrein, A. Elsner, E. Baumhögger, A. Morbach, K. Fieback, J. Vrabec, International Journal of Refrigeration (2014), pp. 154-160

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Apparatus for the measurement of the speed of sound of ammonia up to high temperatures and pressures

F.H. Dubberke, D.B. Rasche, E. Baumhögger, J. Vrabec, Review of Scientific Instruments (2014), 084901

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Prediction methods for pool boiling heat transfer: A state-of-the-art review

D. Gorenflo, E. Baumhögger, G. Herres, S. Kotthoff, International Journal of Refrigeration (2014), pp. 203-226

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Nucleate pool boiling, film boiling and single-phase free convection at pressures up to the critical state. Part II: Circumferential variation of the wall superheat for a horizontal 25mm copper cylinder

D. Gorenflo, E. Baumhögger, T. Windmann, G. Herres, International Journal of Refrigeration (2010), pp. 1251-1263

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Nucleate pool boiling, film boiling and single-phase free convection at pressures up to the critical state. Part I: Integral heat transfer for horizontal copper cylinders

D. Gorenflo, E. Baumhögger, T. Windmann, G. Herres, International Journal of Refrigeration (2010), pp. 1229-1250

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An apparatus for the determination of speeds of sound in fluids

H. Gedanitz, M.J. Dávila, E. Baumhögger, R. Span, The Journal of Chemical Thermodynamics (2009), pp. 478-483

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POOL BOILING IN HIGHLY VISCOUS MIXTURES - DESIGN OF A NEW APPARATUS AND RESULTS OF PRETESTS

R. Span, M. Gerber, I. Buljina, E. Baumhögger, in: Boiling, 2007

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3-DIMENSIONAL DESCRIPTION OF THE MICROSTRUCTURE OF HEATED SURFACES IN NUCLEATE POOL BOILING

A. Luke, E. Baumhögger, P. Scheunemann, Multiphase Science and Technology (2000), 13

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