This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Preliminary Thermodynamic Analysis of Power System Impact on Tactical Aircraft Performance
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 01, 1998 by SAE International in United States
Annotation ability available
A computerized thermodynamic analytical program is being developed to help investigate the impact of power system requirements on aircraft performance. The Visual Basic for Applications (VBA) program has a user interface that operates in MS-EXCEL, linking several subsystem analysis programs for execution and data transfer in the power systems analysis. The program presently includes an encoded propulsion engine cycle code, which allows the inspection of power extraction effects on engine performance. To validate the results of the encoded engine program, a study was conducted to investigate the separate effects of shaft power extraction and pneumatic bleed. The selected engine cycle was that for a standard tactical fighter, with a flight condition of varied altitude (sea level to 40k-ft.) and constant Mach Number(0.9). As expected, the resultant data showed that the engine performance was more sensitive to pneumatic bleed than to shaft power extraction. Fuel inventory comparisons for a given mission were made for three different secondary power system configurations. The lower fuel consumption of the more-electric secondary power system succinctly reflects the sensitivity of the engine performance to shaft power extraction or bleed air power extraction.
CitationLykins, R., Ramalingam, M., Donovan, B., Durkin, E. et al., "Preliminary Thermodynamic Analysis of Power System Impact on Tactical Aircraft Performance," SAE Technical Paper 981288, 1998, https://doi.org/10.4271/981288.
- Beam J. E. 1997 “Heat Sink Options For a More Electric Aircraft Thermal Management System” SAE 971244 , Proc. SAE Aerospace Power Systems Conference 155 159 Williamsburg, VA
- Mattingly J. D. Heiser W. H. 1992 “Improvements in Teaching Aircraft Engine Design” AIAA 92-3758, 28th Joint Propulsion Conference Nashville, TN
- Louviere J. A. 1997 “Thermal Issues of an Integrated Subsystem” SAE 971240 , Proc. SAE Aerospace Power Systems Conference 125 135 Williamsburg, VA
- Tipton R. Figliola R. S. Ochterbeck J. M. 1997 “Thermal Optimization of the ECS on an Advanced Aircraft with an Emphasis on System Efficiency and Design Methodology” SAE 971241 , Proc. SAE Aerospace Power Systems Conference 155 159 Williamsburg, VA
- Chen W. Z. Lin Tsugin Hill B. P. Brown J. R. 1995 “Thermal Modeling of a Flight Critical Electrohydrostatic Actuator” SAE 951403 , SAE Aerospace Atlantic Conference Dayton, OH
- Chen W. Z. Hill B. P. Brown J. R. 1996 “Evaluation of Cooling and Packaging Approaches for MEA Motor Controllers” SAE 961326, SAE Aerospace Atlantic Conference Dayton, OH