Title: Exergoeconomic and exergoenvironmental analyses of the piston aero engine: in-cylinder application

Authors: Onder Altuntas; Elif Koruyucu

Addresses: Faculty of Aeronautics and Astronautics, Eskisehir Technical University, Eskisehir TR-26470, Turkey ' Unmanned Aerial Vehicle Technology and Operators Program, Porsuk Vocation School, Eskisehir Technical University, Eskisehir TR-26140, Turkey

Abstract: This paper aims to show the energy-related economic and environmental parameters for each cylinder of a piston aero engine. This work was carried out in two phases of taxi (taxi-in and taxi-out). The maximum energy and exergy efficiencies of a piston aero engine were found to be 18.70% and 8.16%, respectively, during the taxi-in phase. The highest energy and exergy losses were observed in cylinder 2 the lowest exhaust temperature. The highest relative cost difference and the highest exergoeconomic factor were calculated as 385.62% (in cylinder 3) and 79.34% (in cylinder 4) in the taxi-in phase. The highest relative environmental difference and the highest exergoenvironmental factor were calculated as 147.27% (in cylinder 3) and 35.48% (in cylinder 4) in the taxi-in phase. As shown in exergoeconomic and exergoenvironmental analysis, the first parts to be improved are cylinder 3 and cylinder 4.

Keywords: piston-prop engine; exergoeconomic analysis; in-cylinder analysis; exergoenvironmental analysis.

DOI: 10.1504/IJEX.2022.124743

International Journal of Exergy, 2022 Vol.39 No.1, pp.81 - 96

Received: 30 Dec 2020
Accepted: 12 Dec 2021

Published online: 08 Aug 2022 *

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