1. RWTH Aachen University Institute of Technical Thermodynamics Schinkelstraße 8 52062 Aachen Germany
2. Forschungszentrum Jülich GmbH Institute of Energy and Climate Research – Energy Systems Engineering (IEK-10) Wilhelm-Johnen-Straße 52425 Jülich Germany
3. ETH Zurich Department of Mechanical and Process Engineering, Energy & Process Systems Engineering Tannenstrasse 3 8092 Zürich Switzerland