The U.S. Army Research Laboratory, NASA Glenn Research Center, and Rolls-Royce Allison are working collaboratively to demonstrate the benefits and viability of a wave-rotor-topped gas turbine engine. The self-cooled wave rotor is predicted to increase the engine overall pressure ratio and peak temperature by 300% and 25 to 30%, respectively, providing substantial improvements in engine efficiency and specific power. Such performance improvements would significantly reduce engine emissions and the fuel logistics trails of armed forces. Progress towards a planned demonstration of a wave-rotor-topped Rolls- Royce Allison model 250 engine has included completion of the preliminary design and layout of the engine, the aerodynamic design of the wave rotor component and prediction of its aerodynamic performance characteristics in on- and off-design operation and during transients, and the aerodynamic design of transition ducts between the wave rotor and the high pressure turbine. The topping cycle increases the burner entry temperature and poses a design challenge to be met in the development of the demonstrator engine.
Wave-Rotor-Enhanced Gas Turbine Engine Demonstrator
1999
15 pages
Report
No indication
English
Aerodynamics , Jet & Gas Turbine Engines , Jet engines , Gas turbines , Rotor blades , Aerodynamic configurations , Temperature , Army research , High pressure , Airfoils , Fuel consumption , Logistics , Power , Design criteria , Lift , Rotation , Thrust , Emission control , Aircraft engine ducts , Aircraft design , Wave-rotor-enhanced , Wave rotors , Gas turbine engine demonstrator , Self cooled wave rotors , Topping cycle , Burner entry , Ihptet(Integrated high performance turbine engine technology) , Pressure exchange
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