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Some Exergetic Measures of a JT8D Turbofan Engine

Onder Turan1, Hakan Aydın, T. Hikmet Karakoc, and Adnan Midilli
1.Faculty of Aeronautics and Astronautics, Anadolu University, TR-26470 Eskisehir, Turkey
TUSAS Engine Industries (TEI), TR-26003, Eskisehir, Turkey
Faculty of Aeronautics and Astronautics, Anadolu University, TR-26470 Eskisehir, Turkey
Advanced Energy Technologies, Energy Division, Mechanical Engineering Department, Faculty of Engineering, Recep Tayyip Erdogan University, Rize, 53000, Turkey
Abstract—In this article, some exergetic measures are calculated for a JT8D turbofan engine at takeoff. Selected exergetic measures in this study are as follows: fuel depletion ration, productivity lack ratio, fuel exergy factor, product exergy factor and improvement potential rates. The engine has low-pressure compressor (LPC) stages, high pressure compressor (HPC) stages, a single HP turbine (HPT), and finally three LPT stages. The exergetic assessment of the JT8D turbofan components provided here should be helpful for designing turbofan engines. Results from this study also evaluate effects of the maximum power setting on the exergetic measures of the engine components commonly used in medium range commercial aircrafts.

Index Terms—low bypass turbofan, exergy, propulsion, commercial aircraft, improvement potential rates

Cite: Onder Turan, Hakan Aydın, T. Hikmet Karakoc, and Adnan Midilli, "Some Exergetic Measures of a JT8D Turbofan Engine," Jounal of Automation and Control Engineering, Vol. 2, No. 2, pp. 110-114, June, 2014. doi: 10.12720/joace.2.2.110-114
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