Calculation and Comparison of a Turbofan Engine Performance Parameters with Various Definitions
In this paper, some performance parameters of a selected turbofan engine (JT9D) are analyzed. The engine is a high bypass turbofan engine which powers a wide-body aircraft and it produces 206 kN thrust force (thrust/weight ratio is 5.4). The objective parameters for the engine include calculation of power, specific fuel consumption, specific thrust, engine propulsive, thermal and overall efficiencies according to the various definitions given in the literature. Furthermore, in the case study, wasted energy from the exhaust is calculated at the maximum power setting (i.e. take off phase) for the engine.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1126788Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 3444
 Boeing (2011) http://www.boeing.com. (accessed 19/05/2016).
 Enviro (2011) http://www.enviro.aero/Content/Upload/File/BeginnersGuide_Biofuels_Web. (accessed 19/05/2016).
 IATA (2011) http://www.boeing.com/commercial/cmo/forecast_summary.html. (accessed 19/05/2016).
 Lee, J., Ian J., Waitz, A., Brian, Y., Kim, C., Gregg, G., Fleming, L., Curtis, M., Holsclaw, A. 2007. System for assessing aviation’s global emissions (SAGE), Part 2: Uncertainty assessment. Transportation Research D-Tr E 12: 381–395.
 USHP (2009) http://www.house.gov/transportation/aviation/02-15-06/02-15- 06memo.html. (accessed 25/05/2016).
 Ahmadi, P., Dincer, I., Rosen, M.A. 2011. Exergy, exergoeconomic and environmental analyses and evolutionary algorithm based multi-objective optimization of combined cycle power plants, Energy 36: 5886-5898.
 Ptasinski, K.J., Koymans, M.N., Verspagen, H.H.G. 2006. Performance of the Dutch energy sector based on energy, exergy and extended exergy accounting. Energy 31:3135–3144.
 Joosung, I. L., Stephen P. Lukachko, and Ian, A. W., Aircraft and Energy Use. 2004. http://web.mit.edu/aeroastro/people/waitz/publications/AircraftEnergyUse.pdf.
 Bayrak, M, Gungor, A. Fossil fuel sustainability: Exergy assessment of a cogeneration system. Int. J. Energy Res. 2011; 35:162–68.
 NASA (2016) https://www.grc.nasa.gov/www/k-12/airplane/aturbf.html (accessed 20/05/2016)
 Kroo I. and Alonso J. "Aircraft Design: Synthesis and Analysis, Propulsion Systems: Basic Concepts Archive" Stanford University School of Engineering, Department of Aeronautics and Astronautics (accessed 24/05/2016)
 Pratt & Whitney (2016) http://www.pw.utc.com/JT9D_Engine (accessed 24//05/2016)
 McCue, C. An Examination of Changing Firm Structure in the Aircraft Engine Industry, A Dissertation, Doctor of Philosophy at the University of Connecticut, 2006.
 Boeing 747-400 Aircraft Operations Manual, Delta Virtual Airlines, First Edition, January 28, 2009.
 Ghenaiet, A. Determination of Minimum Thrust Requirement for a Passenger Aircraft, J Aircraft 2007; 44 (6): 1787-92.
 El-Sayed, A. F. Aircraft propulsion and gas turbine engines, CRC Press, 2008.
 John, HD, Camberos, JA, Moorhouse, DJ. Benefits of exergy-based analysis for aerospace engineering applications part I, Int J Aerosp Eng 2009; 1-11.
 NASA (2016) http://www.hq.nasa.gov/pao/History/SP-468/app-f.htm (accessed 28//05/2016)
 MIT (2016) http://web.mit.edu/16.unified/www/FALL/thermodynamics/notes/node81.html (accessed 28//05/2016)
 Babikian R., Lukachko S.P., Waitz I.A., The historical fuel efficiency characteristics of regional aircraft from technological, operational, and cost perspectives. Journal of Air Transport Management 8 2002; 389–400