1. Laboratory for Energy Conversion ETH Zurich, Department of Mechanical and Process Engineering, Sonneggstrasse 3, CH-8092 Zurich, Switzerland
2. Department of Mechanical Engineering, Aristotle University of
Thessaloniki, GR-54124 Thessaloniki, Greece
3. Siemens AG, Mellinghofer Str. 55, D-45473 Muelheim an der Ruhr, Germany
4. MTU Aero Engines AG, Dachauer Str. 665, D-80995 Munich, Germany