1. Institute for Technical Thermodynamics, RWTH Aachen University, Schinkelstraße 8, 52062Aachen, Germany
2. Energy and Process Systems Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Tannenstrasse 3, 8092Zurich, Switzerland
3. Institute of Energy and Climate Research - Energy Systems Engineering (IEK-10), Forschungszentrum Jülich GmbH, 52428Jülich, Germany