1. Mitglied der Helmholtz-Gemeinschaft Process and System Analysis at IEF-3 Michael Weber, Thomas Grube, Dennis Krieg September 16, 2010

2. Institut für Energieforschung – Brennstoffzellen (IEF-3) 2 Process and System Analysis at IEF-3 M. Weber, T. Grube, D. Krieg Current research topics Traction systems with fuel cells and other power sources Hydrogen pipeline infrastructure and its components Electrolysis Focus Tools and methods Energetic analysis of fuel chains (Well-to-Wheel) Material balances (LCI) Material benchmarks and economic evaluation Dynamic simulation of systems (MatLab-Simulink) System evaluation based on detailed technical analysis of technologies for specific applications at realistic operation scenarios/conditions

3. Institut für Energieforschung – Brennstoffzellen (IEF-3) 3  Technical concept of a hydrogen pipeline infrastructure Target of ongoing PhD-thesis Portfolio of possible materials (base material, coatings) Comparison of steady-state and dynamic operation (in respect of hydrogen embrittlement and capacity factors) Concepts of providing fueling stations with hydrogen Feasibility of the technical concepts Cost analysis related to the infrastructure concepts Comparison to existing infrastructures (e.g. natural gas) Compilation of research and development requirements

4. Institut für Energieforschung – Brennstoffzellen (IEF-3) 4 Comparison of Full-electric Vehicles (after Grube et al. [2010]) Assumptions  Fuel cell (FC) system cost: 50 EUR/kW e at 90 kW e and 15 EUR/kWh H2  700 bar compressed H 2 storage with 1.4 kWh H2 /kg, after Seyfried [2009]  Energy use of FC car: mechanical energy at the wheel as f(m), 40% efficiency based on MVEG drive cycle after FZJ [2006]  Greenhouse gas emissions for H 2 from natural gas in large production in Germany (after FZJ [2006])  Greenhouse gas emissions for electricity according to German electricity mix  Batterie with 150 Wh e /kg and 250 EUR/kWh e FC … Fuel cell (PEFC)WTW … Well-to-wheel  Considering compact-class passenger cars full-electric vehicles with fuel cells show greater advantages over battery-electric cars.