Aerodynamic design and testing of a Ram Air Turbine for Small Fixed-Wing UAVs

Valencia, Esteban; Berrazueta, Mathiu; Leines, Denisse; Lema, Henry; Rodriguez, Dario A.; Hidalgo, Víctor

doi:10.2514/6.2020-3957

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2023

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“…They have advantages like high reliability, light weight, small size, and long working time and are highly compatible with the emergency energy demands of Unmanned Aerial Vehicles (UAVs). However, this system only operates when the aircraft is in turbo fan mode and is in flight, taking advantage only of the mass of air produced by air drag on the fuselage [43][44][45][46].…”

Section: Introductionmentioning

confidence: 99%

Unconventional fly-gen airborne wind energy system

Sarmiento,

González Cruz

2023

Eng. Res. Express

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Based on capturing wind energy at altitudes, known as Airborne Wind Energy Systems (AWES , and the system called Ram air turbine (RAT), we propose and study an Unconventional Fly-Gen Airborne Wind Energy System that converses mechanical energy into electrical energy by Faraday’s law of induction, using mass flow produced on the PT6 engine cowling operating at idle gear. We show that it is possible to obtain electromotive force by varying the angle between the air mass produced by the engine propeller and the axial fan. We found that the amplitude and frequency of this EMF are inverse functions of cos γ and the induced peak power is independent of the type of biofuel with which the PT6 is fed.

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Section: Introductionmentioning

confidence: 99%