Propulsion system based on compressed air due to rotor blade rotation

Author(s): Aiman Elmahmodia*, Nikola Davidovicb, Ramadan A. Al-Madanic
a Aeronautical Eng., Faculty of engineering-University of Tripoli, Tripoli - Libya
b EDePro Jet Propulsion Laboratory, Begrade, Serbia
c Engineering Faculty, Al-Jabel Algharbi University, Tripoli – Libya
International Journal of Smart Grid and Clean Energy, vol. 3, no. 3, July 2014: pp. 263-269
ISSN: 2315-4462 (Print)
ISSN: 2373-3594 (Online)
Digital Object Identifier: 10.12720/sgce.3.3.263-269

Abstract: The theoretical and experimental investigation of the potential of jet propulsion system to drive rotor of (VTOL) Vertical Takeoff and Landing aircraft has been presented. The analysis of tip jet propulsion system is based on compressed air due to rotor blade rotation. The system performances were compared in the case of the rotor with rocket, and pressure-jet engine. Rocket engine had practical application in middle of 20th century, while the present work tip jet pressure propulsion system is based on turbojet thermodynamic cycle. Comparison has been performed according to available and required power, and to flight duration. Performances of the present propulsion system were also analyzed with introduction of typical rotor geometry. Analysis shows possible application of such propulsion as unmanned or low-weight helicopters and Vertical Take-Off and Landing (VTOL) vehicles.

Keywords: Helicopter rotor, tip jet, flying vehicle, unmanned helicopters, pressure jet

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