Prof. Dr. Tahir Hikmet Karakoç is a Full Professor at Faculty of Aeronautic and Astronautics of Anadolu University, Eskisehir, Turkey. He received his MSc and PhD in 1983 and 1987, respectively. He has published many papers at various national and international conferences, while he has authored several books. His research areas include aviation, energy and energy economy, gas turbine engines, fuels, isolation and installation. Dr. C. Ozgur Colpan is an Associate Professor in the Department of Mechanical Engineering of Dokuz Eylul University in Turkey. He received his PhD Degree from Carleton University in Ottawa, Canada and his Bachelor of Science (2003) and Master of Science (2005) Degrees from the Middle East Technical University in Ankara, Turkey. His research areas are mathematical modelling, manufacturing and characterization of fuel cells, organic Rankine cycles, heat exchanger design and modelling and thermodynamic modelling of integrated energy systems. He has co-authored several important publications in the field of fuel cells and renewable energy systems. He has been actively taking roles in the organizing committee of several international conferences related to energy and environment. He has also served as guest editor of several prestigious journals related to energy and aviation. Onder Altuntas is an Associate Professor Doctor in the Faculty of Aeronautics and Astronautics in Eskisehir Technical University and a member of the Aviation Research Center in Anadolu University. He received his BSc and MSc in the School of Civil Aviation and Graduate School of Sciences at Anadolu University in 2007 and 2011, respectively. He received his PhD in 2011. In 2013, he took the title of an Associate Professor as the expert of aircraft thrust and energy technology in Engineering. He has presented many papers at various national and international conferences so far. His research areas include aviation, sustainability, energy and energy economy, piston-prop engines, fuels, airports and environmental issues. Dr. Yasin Sohret is currently an Assistant Professor at Department of Airframe and Powerplant Maintenance of Suleyman Demirel University. He graduated from Mechanical Engineering Department of Eskisehir Osmangazi University in 2010. He recieved his PhD degree from Aircraft Maintenance Department of Anadolu University under supervision of Prof. Dr. Hikmet Karakoc. Sohret mainly studies on gas turbine engine measurements, combustion and fuels, energy and exergy analyses of thermal systems.