Title: Aircraft fuel system energy and exergy analysis under hot day conditions

Authors: Muhammet Yilanli; Önder Altuntaş; Emin Açıkkalp; T. Hikmet Karakoc

Addresses: Faculty of Aeronautics and Astronautics, Anadolu University, Eskisehir TR-26470, Turkey ' Faculty of Aeronautics and Astronautics, Anadolu University, Eskisehir TR-26470, Turkey ' Mechanical and Manufacturing Engineering Department, Bilecik S.E. University, Bilecik TR-11210, Turkey ' Faculty of Aeronautics and Astronautics, Anadolu University, Eskisehir TR-26470, Turkey

Abstract: In this paper, energy and exergy analysis of the fuel system is performed to investigate the variation of flow and heat energies of fuel. Thermal balance, formed by many different components of aircraft systems by means of heat management, has been significantly affected by aircraft performance. For that reason, thermal management of the fuel system in the aircraft has a significant indication concerning energy and exergy flow. The results indicate that the rate of energy transfer, which is occurred in the fuel system components throughout flight is respectively 42% for low-pressure heat exchanger, 23% for high-pressure heat exchanger and 22% for the low-pressure fuel pump and finally 13% for the high-pressure fuel pump. In addition to that; during the flight the exergy destruction rate in the fuel system, in proportion to flight phases, is 51% during the climbing phase, 21% during the acceleration phase, 14% during the idle position and 7% during both cruise and descent phase.

Keywords: energy analysis; exergy analysis; thermal management; aircraft fuel system.

DOI: 10.1504/IJEX.2018.089553

International Journal of Exergy, 2018 Vol.25 No.2, pp.152 - 167

Received: 02 Nov 2016
Accepted: 25 Sep 2017
Published online: 30 Jan 2018 *

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