Prof. Dr. Stephan Leyer

Stephan Leyer

Full professor in Mechanical engineering - Heat and mass transfer and thermodynamics

Faculty or Centre Faculty of Science, Technology and Medicine
Department Department of Engineering
Postal Address Campus Kirchberg, Université du Luxembourg
6, rue Richard Coudenhove-Kalergi
L-1359 Luxembourg
Campus Office L 107
Telephone (+352) 46 66 44 5842

Stephan Leyer studied physics at the University of Karlsruhe where he obtained in 2004 his PhD degree on Metal Insulator Transition in Rare Earth Hydrides. He then pursued his Post-Doc research at the Max-Planck Institute for Plasma Physics in Garching (IPP).

In 2005, he worked within the industry sector starting from system engineer at Framatone to become research and development manager at Areva. Eight years later, Stephan Leyer was appointed as a professor of thermodynamics and energy systems at Technische Hochschule Deggendorf. In 2015, he joined the University of Luxembourg as a professor in the field of thermodynamics, mass and heat transfer within the Faculty of Science, Technology and Communication (FSTC).

Last updated on: Friday, 21 April 2017


  • 2015 - Now:         Professor in thermodynamics, mass and heat transfer, University of Luxembourg: supervision of PhD, Master- and Bachelor students
  • 2013 - 2015:        Professor in thermodynamics and energy technology at THD, supervision of Master- and Bachelor Students
  • 2011 - 2013:        Research and development manager, AREVA
  • 2007 - 2011:        Head of the department BWR Experimental Validation, AREVA, supervision of engineers, PhD, Master and Bachelor students in cooperation with R&D institutions
  • 2006 - 2007:        Technical manager of the IPP test bed BATMAN, supervision of PhD, Master and Bachelor students
  • 2005 - 2006:        System engineer, Framatone 


  • 2006 - 2007:        Post-Doc Neutral Beam Injection Development for ITER, Max- Planck Institute for Plasma Physics in Garching (IPP),
  • 2000 - 2004:        PhD Metal Insulator Transition in Max- Planck Institute, University of Karlsruhe
  • 1994 - 2000:        Diploma in Physics - Nuclear Magnetic Resonance Analysis of Rare Earth Hydrides, University of Karlsruhe
  • 1992 - 1994:        Civilian alternative service
  • 1982 - 1991:        Secondary School, Max-Planck Gymnasium, Karlsruhe

Last updated on: 16 Sep 2015

Thermal Fluid Dynamics

  • Thermal hydraulic modelling and model validation
  • Adiabatic boiling
  • Low pressure convection systems
  • Alternative working fluid

Membrane Distillation

  • Experimental analysis of membranes
  • Numerical modelling

Thermoelectrically Power Generation

Energy network system

  • Analysis of network systems: provider-consumer- storage - connections
  • Grid integration of renewable energy systems

Code development for transient power plant operation analysis

Energy efficiency 

  • Improvement of energy efficiency for buildings industrial sites or communities

Last updated on: 16 Sep 2015

  • Thermodynamics
  • Heat and Mass Transfer
  • Statistical Physics
  • Energy System – Thermal Energy Conversions, Renewable Energy Sources, Energy Storage Systems

Last updated on: 16 Sep 2015

  • ETH Zürich / Paul Scherrer Institute
  • Technische University of Dresden
  • Helmholtz Zentrum Dresden/Rossendorf
  • Karlsruhe Institute of Technology
  • Rheinisch Westfälische Hochschule Aachen
  • Gesellschaft für Anlagen- und Reaktorsicherheit
  • Technische Hochschule Deggendorf
  • Hochschule Zittau
  • Warsaw University of Technology
  • E.ON
  • Hitachi Zosen
  • RWE

Last updated on: 16 Sep 2015

  • The Integral Test Facility Karlstein

Stephan Leyer, Michael Wich, Science and Technology of Nuclear Installations, Volume 2012

  • Passive BWR Integral LOCA Testing at the Karlstein Test Facility INKA

Robert Drescher, Thomas Wagner, Stephan Leyer, atw vol. 59 (2014) Issue 5 | May

  • Metallic and non-metallic lanthanum hydrides studied by means of nuclear magnetic resonance

S. Leyer, E. Dormann, J. Alloys Compounds 363, 15 (2004)

  • Technical overview and first results of the half-size ITER NNBI source

M. Fröschle, S. Leyer, P. Franzen, C. Martens, E. Speth, B. Heinemann, H. D. Falter, U. Fantz, W. Kraus, R. Riedl, Fusion Engineering and Design, 82, 887 (2007)

Last updated on: 16 Sep 2015