Dr.-Ing. Sebastian Rehfeldt



Email: sebastian.rehfeldt@tum.de


Sebastian Rehfeldt Ph.D., born 1978 in Munich, studied Mechanical Engineering with specialization in Process Engineering at the Technical University of Munich (TUM) and received his doctorate (Dr.-Ing.) in 2009. Since then he has been head of the “Gas-Liquid Contact Apparatus” working group at the Institute of Plant and Process Technology at TUM. There, he is a lecturer for Heat and Mass Transfer, Equipment Design and Process Design. Since 2021 he is lecturer for “Instrumentation” in Chemical Engineering at TUM-Asia in Singapore.


  • Stichlmair, J., Klein, H., Rehfeldt, S.: Distillation: Principles and Practice, (2021), 2nd edition, John Wiley & Sons; DOI:10.1002/9781119414674
  • Rehfeldt, S., Stichlmair, J.: Measurement and calculation of multicomponent diffusion coefficients in liquids, (2007), Fluid Phase Equilibria, 256 (1-2); DOI: 10.1016/j.fluid.2006.10.008
    Rehfeldt, S., Stichlmair, J.: Measurement and prediction of multicomponent diffusion coefficients in four ternary liquid systems, (2010), Fluid Phase Equilibria, 290 (1-2); DOI: 10.1016/j.fluid.2009.12.009
  • Cahalan, T., Rehfeldt, S., Bauer, M., Becker, M., Klein, H.: Experimental set-up for analysis of membranes used in external membrane humidification of PEM fuel cells, (2016), International Journal of Hydrogen Energy, 41 (31); DOI: 10.1016/j.ijhydene.2016.05.281
  • Hanusch, F., Rehfeldt, S., Klein, H.: Liquid Maldistribution in Random-Packed Columns: Experimental Investigation of Influencing Factors, (2018) Chemical Engineering and Technology, 41 (11); DOI: 10.1002/ceat.201800467
  • Hanusch, F., Kender, R., Engel, V., Rehfeldt, S., Klein, H.: TUM–WelChem cell model for the prediction of liquid distribution in random packed columns, (2019) AIChE Journal, 65 (8); DOI: 10.1002/aic.16598
  • Kender, R., Wunderlich, B., Thomas, I., Peschel, A., Rehfeldt, S., Klein, H.: Pressure-driven dynamic simulation of start up and shutdown procedures of distillation columns in air separation units, (2019), Chemical Engineering Research and Design, 147; DOI: 10.1016/j.cherd.2019.04.031
  • Neukäufer, J., Hanusch, F., Kutscherauer, M., Rehfeldt, S., Klein, H., Grützner, T.: Methodology for the Development of Additively Manufactured Packings in Thermal Separation Technology, (2019), Chemical Engineering and Technology, 42 (9); DOI: 10.1002/ceat.201900220
  • Wolfenstetter, F., Kreitmeir, M., Schoenfeld, L., Klein, H., Becker, M., Rehfeldt, S.: Experimental study on water transport in membrane humidifiers for polymer electrolyte membrane fuel cells, (2022), International Journal of Hydrogen Energy, 47 (55); DOI: 10.1016/j.ijhydene.2022.05.114


  • Diffusion
  • Condensation
  • Distillation
  • Fluid dynamics of distillation columns
  • Fouling in distillation columns
  • Additive manufacturing of structured packings
  • Membrane humidifiers

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