NASA Quiet Clean General Aviation Turbofan (QCGAT) program status [PDF]
The suitability of large engine technology to reduce noise, emissions, and fuel consumption of small turbine engines and develop new technology where required is determined.
Bresnahan, D. L., Sievers, G. K.
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, 2014 The aim pursued by this project is to show the design of a complete turbofan. Because this design process is very complex and large groups of engineers for their development typically need the scope thereof in a final project is very limited. However, attempts to give an overview of what this design process and show the way forward from the work done ...
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Multiple-Purpose Subsonic Naval Aircraft (MPSNA): Multiple Application Propfan Study (MAPS) [PDF]
Study requirements, assumptions and guidelines were identified regarding carrier suitability, aircraft missions, technology availability, and propulsion considerations. Conceptual designs were executed for two missions, a full multimission aircraft and a
Engelbeck, R. M. +4 more
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Gaseous exhaust emissions from a JT8D-109 turbofan engine at simulated cruise flight conditions [PDF]
Gaseous emissions from a JT8D-109 turbofan engine were measured in an altitude facility at four simulated cruise flight conditions: Mach 0.8 at altitudes of 9.1, 10, 7, and 12.2 km and Mach 0.9 at 10.7 km.
Diehl, L. A., Holdeman, J. D.
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Preliminary study of optimum ductburning turbofan engine cycle design parameters for supersonic cruising [PDF]
The effect of turbofan engine overall pressure ratio, fan pressure ratio, and ductburner temperature rise on the engine weight and cruise fuel consumption for a mach 2.4 supersonic transport was investigated.
Fishbach, L. H.
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A deep learning-based prognostic approach for predicting turbofan engine degradation and remaining useful life. [PDF]
Sci RepElsherif SM +3 more
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Effect of afterburner lights and inlet unstarts on a mixed compression inlet turbofan engine operating at Mach 2.5 [PDF]
Data are presented to show the response of an uncontrolled inlet to afterburner lightoff disturbances when a mixed-compression inlet is coupled to a turbofan engine.
Batterton, P. G. +2 more
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Experimental program for the evaluation of turbofan/turboshaft c conversion technology [PDF]
A TF34 turbofan engine is being modified to produce shaft power from an output coupling on the fan disk when variable inlet guide vanes are closed to reduce fan airflow.
Mcardle, J. G., Wenzel, L. M.
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A Two-Stage Attention-Based Hierarchical Transformer for Turbofan Engine Remaining Useful Life Prediction. [PDF]
Sensors (Basel)Fan Z, Li W, Chang KC.
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