46th International Vienna Motor Symposium
Hydrogen, Methanol or Ammonia, an Evaluation from Production to Energy Conversion
Authors
M. Sens, J. Brauns , A. Fandakov, J. Geppert, P. Grigoriadis, M. Riess, M. Roehe, T. Mueller, IAV GmbH, Berlin
Year
2025
Print Info
Production/Publication ÖVK
Summary
The article analyzes the efficiency potential of renewable fuels such as hydrogen, methanol and ammonia over their entire life cycle. The starting point is the amount of renewable electricity produced, using specially developed digital twins for the whole fuel production chain and combustion models to analyze how much energy is lost in each production step, intermediate storage, transport and conversion in the vehicle. In the first part of the article, new, specially developed 1D combustion models are used to determine the achievable efficiency potential of an optimized combustion engine for each fuel. The differences in efficiency are significant and can be attributed to the specific properties of the fuels. Since, in addition to the conversion of energy in the fuel, its production is also heavily dependent on efficiency, the second part of the article is dedicated to the production paths, including storage and transport of the fuels. It describes in detail how much energy is retained from the amount of energy initially generated as renewable electricity until it reaches the petrol station, how much energy is lost in the production process and what potential for improvement exists. In addition to electrolysis technologies such as AEL, PEMEL and SOEL, synthesis processes such as Haber-Bosch and methanol synthesis as well as carbon capture technologies such as ESA and TSA are also evaluated using digital twins. A comprehensive analysis makes it clear that the choice of production location and technology is crucial for the efficiency and sustainability of fuel production. The article offers valuable insights into the challenges and opportunities of using renewable fuels in the automotive industry and emphasizes the importance of technological innovations in the production process and implementation in the energy converter for the future of mobility.
ISBN
978-3-9504969-4-9
DOI
https://doi.org/10.62626/s9q4-wxf8
Lectures from the International Vienna Motor Symposium can be ordered from the Austrian Society of Automotive Engineers (ÖVK). Lectures can only be purchased in the form of the complete conference documents, individual lectures are not available.
When placing an order, please note the year/name of the event (e.g. "45th International Vienna Motor Symposium 2024") for the further ordering process.
Members of the Austrian Society of Automotive Engineers have access to all lectures of the International Vienna Motor Symposia.