Akademik Veri Yönetim Sistemi
International Journal of Hydrogen Energy, 2025 (SCI-Expanded)
In this study, the comprehensively measured, and compared aviation, exergetic, thermodynamic-based environmental, and thermodynamic-based sustainability performances of two different piston-prop aviation engines which are fueled with AVGAS (aviation gasoline) and Hydrogen separately in the Landing and Take Off (LTO) flight phases. The highest exergy efficiency values are measured in the approach phase of LTO when the engines are fueled with either AVGAS or hydrogen. When the engines are fueled with the AVGAS, the take-off phase has the maximum waste exergy is take-off. When the aviation piston-prop engine 1 (APE1) is fueled with the AVGAS, the minimum fuel exergy ratio value is obtained by a value of 72.08% at the approach phase. When the aviation piston-prop engine 1 (APE2) is fueled with hydrogen, the maximum fuel exergy ratio value is obtained with a value of 78.399% at the approach phase. The lowest specific fuel consumption value is computed as 0.101 kg/kWh when the APE1 is fueled with hydrogen during the approach phase. When the APE1 is fueled with the AVGAS, the environmental effect factor, the ecological effect factor, the ecological objective function, the exergetic sustainability index, and the sustainable efficiency factor results are observed with values of 7.337, 8.337, −64.666 kW, 0.136, and 1.136, respectively for the taxi phase. The environmental effect factor, ecological effect factor, ecological objective function, energetic sustainability index, and sustainable efficiency factor results for the climb-out phase of the APE2, while fueled with hydrogen are 3.190, 4.190, −277.752 kW, 0.313, and 1.313, respectively. Based on all the analyses, findings, and comparative performance evaluations, it is determined that the APE1 is the best engine in terms of exergetic efficiency, specific fuel consumption, thermodynamic efficiency, environmental friendliness, and sustainability.