Implications of High-Pressure Turbine’s Erosion for a Military Turbofan’s Fuel Consumption
Publication: Journal of Aerospace Engineering
Volume 25, Issue 1
Abstract
Some in-service deterioration in any mechanical device, such as an aeroengine, is inevitable. As a result of experiencing deterioration (of the engine as a whole or any of its components individually), an engine will seek a different steady operating point, thereby resulting in a variation of the specific fuel consumption and/or fuel flow to provide the same thrust to keep the aircraft’s performance invariant. Any rise in specific fuel consumption and/or fuel flow and thereby the increased quantity of fuel required is of prime importance in military aviation. For a military aircraft’s mission profile, using computer simulations, the implications of high-pressure turbine’s erosion of a turbofan aeroengine upon the weight of the fuel that has to be carried and consumed are predicted. This will help in making wiser management decisions, such as whether to remove an aeroengine from the aircraft for maintenance or to continue using it with some changes in the aircraft’s mission profile). Hence, improved engine utilization can be achieved, resulting in lesser overall life-cycle costs.
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© 2012 American Society of Civil Engineers.
History
Received: Apr 20, 2010
Accepted: Jan 12, 2011
Published online: Jan 15, 2011
Published in print: Jan 1, 2012
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