Title: Exergoenvironmental analysis of piston-prop aircrafts

Authors: Onder Altuntas; T. Hikmet Karakoc; Arif Hepbasli

Addresses: School of Civil Aviation, Anadolu University, TR 26470, Eskisehir, Turkey ' School of Civil Aviation, Anadolu University, TR 26470, Eskisehir, Turkey ' Department of Mechanical Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11 421, Saudi Arabia

Abstract: This study deals with exergoenvironmental analysis of a four-cylinder, spark ignition, naturally aspirated and air-cooled piston-prop aircraft engine for landing takeoff (LTO) and cruise phases. This analysis includes the three steps as follows: application of exergy analysis, finding the exergoenvironmental impacts, and allocation of both exergy streams and exergoenvironmental impacts. In the LTO phase, the maximum specific environmental impact and relative environmental difference is calculated as 18.8 mPts/MJ and 208.9%, respectively, at the approach phase. The maximum specific environmental impact of production is 12.2 mPts/MJ at 3000 m altitude, 15.1 air-to-fuel ratio and 65% rated power setting during the cruise phase.

Keywords: exergoenvironmental analysis; environmental impact; eco-indicator 99; piston-prop aircraft engines; exergy analysis.

DOI: 10.1504/IJEX.2012.046816

International Journal of Exergy, 2012 Vol.10 No.3, pp.290 - 298

Received: 10 Sep 2011
Accepted: 11 Nov 2011
Published online: 10 May 2012 *

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