THE EXERGY OF LIFT DURING CLIMB AND CRUISE FOR DIFFERENT ENGINE TYPES
Nowadays with the increasing air traffic, exergy analysis is of great importance in studies aimed efficient use of energy and decreasing environmental impacts caused by aircrafts. In this study, tables for exergy of lift for a hypothetical aircraft have been created with five different engine types. Tables created are for cruise at 8,000ft (2,440m) and climbing at sea level. As a result of this study, it is seen that the engines with higher power and fuel mass flow rate have bigger exergy destruction rates within their components in the meaning of the exergy of lift. The exergy destructions have occurred most greatly at the engines both at the climbing and the cruise. Wing and propeller are the second and third components in this regard, respectively. It is seen that for the components of an aircraft which has a lower aspect ratio there is lesser need for the exergy of lift. During the cruise, the biggest exergy destruction rate in the engine component is occurred approximately as 32 kW at the engine which has the second highest power. As to climb, 473 kW exergy destruction rate which is the biggest value within all engines is occurred at the engine having the biggest power.
 Paulus, D.M. Jr., Gaggioli, R. A., (2003) " The Exergy of Lift and Aircraft Exergy Flow Diagrams" International Journal of Thermodynamics, 6, 149-156.
 Bejan, A., (2002), "Fundamentals of Exergy Analysis, Entropy Generation Minimization, and the Generation of Flow Architecture" International Journal of Energy Research, 26, 545-565.
 Roth, B., (2001), "Aerodynamic Drag Loss Chargeability and its Implications in the Vehicle Design Process" 1st AIAA Aircraft, Technology Integration and Operations Forum, 5236.
 Bejan, A., Siems, D.L., (2001), "The Need for Exergy Analysis and Thermodynamic Optimization in Aircraft Development" Exergy, an International Journal, 1, 14-24.
 Bejan, A., (1996) "" Entropy Generation and Exergy Destruction" Entropy Generation Minimazation: The Method of Thermodynamic Optimization of Finite-Size Systems and Finite Time Processes", CRCPress, 21-42.
 Moorhouse, D., (2003) "Introduction: Exergy, " Journal of Aircraft, Vol. 40, No. 1, 10.
 Roth, B., (2003) "The Role of Thermodynamic Work Potential in Aerospace Vehicles" In:Proceedings of the 16th International Symposium on Air Breathing Engines (ISABE), Cleveland.
 De Oliveira, S., Jr.,(2013) "Exergy: Production, Cost and Renewability, 1st ed. ", Springer–Verlag, 249.
 Markell, K.C., (2005), "Exergy Methods for the Generic Analysis and Optimization of Hypersonic Vehicle Concepts" Master Dissertation, Faculty of Virginia Polytechnic Institute and State University, Blacksburg.
 Riggins, D. W., Moorhouse, D. J., Camberos, J. A., (2010) " Characterization of Aerospace Vehicle Performance and Mission Analysis Using Thermodynamic Availability" Journal of Aircraft, 47, No. 3, 904-916.
 Moran, M. J., Sciubba, E., (1994), "Exergy Analysis: Principles and Practice"Journal of Engineering for Gas Turbines and Power, 116, No. 2, 285–290.
 Vargas, J.V.C., Bejan, A., (2001), "Integrative Thermodynamic Optimization of the Environmental Control System of an Aircraft" International Journal of Heat and Mass Transfer, 44, 3907-3917.
 Ordonez, J.C., Bejan, A., (2003), "Minimum Power Requirement for Environmental Control of Aircraft" Energy, 28, 1183-1202.
 Dunbar, W.R., Lior N., (1991),"Understanding Combustion Irreversibility "ASME AES;25, 81–90.
 Avco Lycoming, (1973), “0-320, I0320, AIO 320 and LIO 320 Series Aircraft Engines Operator’s Manual”
 Textron Lycoming, (2000), “O-360, HO-360,IO-360, HIO-360 & TIO-360 Series Aircraft Engines Operator’s Manual”
 Avco Lycoming, (1982), “O-540, IO-540& HIO-540 Series Aircraft Engines Operator’s Manual”
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