Vienna Aviation Days 2024

8. - 9. July 2024
TUtheSky, TU Vienna, Getreidemarkt 9, BA Building - 11.0G, 1060 Vienna, AT

The Vienna Aviation Days are dedicated to the topic of hydrogen and hybrid-electric propulsion in aviation at both national and European levels. Experts from the aviation industry, research institutions, and the public sector will present and discuss current innovations, challenges, and trends, as well as future research and development needs.


  • exFan (Horizon Europe Project)
  • University of Technology Vienna (TU)

Content Description

Hydrogen and hydrogen-electric propulsion represent a promising path towards achieving zero emission aviation. When produced from clean electricity, hydrogen has no CO2 emissions over its life cycle. Hydrogen can be combusted through modified gas-turbine engines or converted into electrical power that complements the gas turbine via fuel cells. The aviation industry and governments jointly foster disruptive innovation combined with sustainability.

The Vienna Aviation days are organized through the Horizon Europe project exFan (Grant Agreement number: 101138184). The aim of this congress is to establish a platform to enable an exchange of green aviation topics for aviation research projects and build a connection between the different projects, programmes and policy makers. The topics of the projects contribute to future Hydrogen/Hybrid electric aircraft propulsion systems.

At the event, the participating projects will present their activities towards hydrogen propulsion. The audience can gain an insight into the tasks and challenges of the individual projects. This will serve as a basis for discussion and subsequent one-to-one meetings and pave the way for possible cross-project collaboration or to create ideas and cooperation for new projects.


Day One (8. July 2024)

  • 12:30 Registration
  • 13:00 Moderation & Opening
    Hanns Amri (ADT Engineering)
  • 13:10 Introduction Speech
    Jens Schneider (TU Wien)
    Michael Weigand (TU Wien)
    Martin Berens und Michael Weigand (TU Wien)
  • 13:30 Block 1: Policy, strategies
    First hydrogen powered aircraft are expected to reach market readiness by 2035. Potential deployment will focus on regional and single aisle aircraft. European and national policies foster and support the maturation of this technology. This block covers the strategies and challenges presented by the public sector.
    • Michail Kyriakopoulos (European Commission) tbc
    • Janik Fernandez (Clean Aviation)
    • Ingrid Kernstock (Austrian Federal Ministry for Climate Action, Environment, Energy, Mobility, Innovation and Technology - BMK)
    • Kai Wagner (Bundesministerium für Wirtschaft und Klimaschutz)
    • Ron van Manen (The Netherlands, Luchtvaart in Transitie)
    • Panel discussion
  • 15:00 Break
  • 15:30 Block 2: Challenges & Opportunities
    The successful transition towards hydrogen propulsion faces different challenges and opportunities. Those include future aircraft emissions such as non-CO2, contrails or noise as well as ground infrastructure.
    • Johannes Hartmann (Airbus) - Project FAME
    • Peter Rostek (Airbus): "Experimental Research for Sustainable Aviation"
    • Feija Yin (TU Delft) - Project BeCoM, project HOPE
    • Michele De Gennaro (Austrian Institute of Technology) - Project NEEDED
      "A glimpse towards the future Hydrogen Powered Aviation: LH2 Ground Infrastructure and Emission Modelling"
    • Fabrice Guiliani (TU Graz) - Project LIQORNE
      "Liquid hydrogen for airborne applications"
  • 17:30 - 17:40 Closing Speech
    Hanns Amri (ADT Engineering)
  • 18:30 - open end Dinner at TUtheSky

Day 2 (9. July 2024)

  • 8:30 Welcome Coffee
  • 9:00 Moderation & Opening
    Hanns Amri (ADT Engineering
  • 9:10 Block 3: Hydrogen Combustion & Hydrogen- electric propulsion systems
    Different projects present their contribution for the path towards hydrogen propulsion and their technological challenges that need to be overcome to reach its full potential.
    • Martin Berens - Project exFan
      "Opportunities to move from heat rejection to heat utilization in hydrogen electric aircraft – exFan"
    • Yan Duranteau (SAFRAN) - Project NIMPHEA
      "Next generation of IMProved High temperature membrane Electrode Assembly for aviation"
    • Stefanie Degraaf (DLR) - Project FLYECO
    • Francesca Di Mare (Ruhr University Bochum) - Project MYTHOS
    • Patrick Jagerhofer (Graz)
      "The Combustor is not enough – Implications on the Hot Gas Path"
  • 11:00 Break
  • 11:40 Block 4: Architecture, On Board Storage, Modelling
    Liquid Hydrogen with its low temperature of -253 °C creates new challenges in the airplane. Those include tank, on board storage and fuel distribution systems as well as refuelling. Another challenge is the availability of research infrastructure fit for cryogenic testing. This block will present different innovative solutions.
    • Helmut Kühnelt (AIT) - Projects MATISSE, SOLIFLY, HECATE
      "Airworthy batteries at AIT - From advanced batteries to MATISSE multifunctional electrical energy storage"
    • Michael Schilling (Testfuchs)
      "Mission H2-3-4: Strategic approach towards H2 Solutions for the aircraft industry"
    • Alexander Trattner (HYCENTA)
    • Stephan Ucsnik (LKR) - LH2 Tanks
    • Jan Hämisch (DLR Lampoldshausen)
      "Hydrogen-site Lampoldshausen – testing for aerospace and beyond"
  • 13:30 Event Closure
    • Martin Berens (TU Wien)
    • Hanns Amri (ADT Engineering)

Agenda on the event website

Target Audience

Representatives from

  • companies in the aviation industry,
  • university and non-university research institutions,
  • the public sector

Participant Information


Contact Address

Advanced Drivetrain Technologies GmbH
Andreas Wiesinger

TU Vienna
Bernhard Gerl