Browsing by Author "Gunerhan, Useyin"

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    Assessing Exergy-Based Economic and Sustainability Analyses of a Military Gas Turbine Engine Fueled with Various Fuels
    (MDPI AG rasetti@mdpi.com Postfach Basel CH-4005, 2020) Burak Yuksel; Huseyin Gunerhan; A. Hepbasli; Yuksel, Burak; Gunerhan, Useyin; Hepbasli, Arif; Gunerhan, Huseyin
    This research put forth exergy-based economic and sustainability analyses of a (J85-GE-5H) military turbojet engine (TJE). Firstly sustainability conventional exergoeconomic and advanced exergoeconomic cost analyses were executed utilizing kerosene fuel according to real engine working circumstances. The engine was likewise investigated parametrically considering H2 fuel utilization. The sustainable economic analysis assessment of the TJE was finally actualized by comparing the acquired outcomes for both fuels. The entire engine's unit exergy cost of product ( ) cPr with kerosene was determined 76.45 $/GJ for the military (MIL) process mode (PM) whereas it was computed 94.97 $/GJ for the afterburner (AB) PM. Given the use of H2 the cPr increased to 179 and 288 $/GJ for the aforementioned two modes seriatim. While the sustainability cost index (SCI) values were obtained 52.86 and 78.84 $/GJ for the MIL and AB PM seriatim they became 128 and 244 $/GJ when considering H2. Consequently the higher exergy demolitions occurring in the afterburner exhaust duct (ABED) and combustion chamber (CC) sections led to higher exergy destruction costs in the TJE. However the engine worked less cost efficient with H2 fuel rather than JP-8 fuel because of the higher cost value of fuel. © 2020 Elsevier B.V. All rights reserved.