1. Thermodynamics, Technische Universität Berlin 1 , 10587 Berlin, Germany
2. Institute of Thermodynamics and Thermal Process Engineering, University of Stuttgart 2 , 70569 Stuttgart, Germany
3. Laboratory of Engineering Thermodynamics 3 , TU Kaiserslautern, 67663 Kaiserslautern, Germany
4. Institute of Thermodynamics, Bundeswehr University of Munich 4 , 85577 Neubiberg, Germany