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Proceedings of Higher Educational Institutions. Маchine Building, 2019 Subsonic bypass turbojet engines of the fifth generation have reached technical maturity, with overall efficiency of 35–38%. Without changing the thermodynamic cycle of the engine, any further work in this direction is futile. The researcher proposes a method of increasing the thermodynamic effectiveness of heat engines based on the so called internal ...
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A comprehensive approach to understanding irreversibility in a turbojet
Propulsion and Power Research, 2018 Regarding interest in and concerns about high efficiency in recent times, an irreversibility assessment of energy conversion systems is significant. Turbojets, a type of energy conversion system, are widely used to provide thrust for aerial vehicles ...
Yasin Şöhret
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Defining ecologic thermo-environmental index for aero-engines as a novel performance criterion
Propulsion and Power Research, 2021 Aviation fleet globally grows in consequence of rise in ridership, number, and hour of flight. That makes the aviation sector one of the major contributors to the global warming threat.
Yasin Şöhret
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Experimental campaign tests on ultra micro gas turbines, fuel supply comparison and optimization [PDF]
, 2018 The increasing demand for miniaturized radio-controlled vehicles inspired the following research. The uses of these unmanned miniaturized/micro vehicles range from aero-modeling to drones for urban control and military applications too.
Capata, Roberto, Saracchini, Matteo
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THE CO-TURBOJET ENGINE: A NOVEL CONCEPT FOR MILTI-SPOOL TURBOJET ENGINES [PDF]
International Conference on Aerospace Sciences and Aviation Technology, 1985 The novel feature of the co-turbojet engine is the rotation of tne casing of the. high pressure compressor. This casing co-rotates, at lower speed, with the high pressure rotor of the turbojet engine, hence the name co-turbojet. The compressor casing"derives power from the high pressure air stream passing through the compressor and this power is used ...
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Sliding Mode Control for Micro Turbojet Engine Using Turbofan Power Ratio as Control Law
Energies, 2020 The interest in turbojet engines was emerging in the past years due to their simplicity. The purpose of this article is to investigate sliding mode control (SMC) for a micro turbojet engine based on an unconventional compound thermodynamic parameter ...
Khaoula Derbel, Károly Beneda
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Analyzes regarding aviation fuels parameters use on jet engines [PDF]
INCAS BulletinThe properties of the fuels determine the quality of the combustion process and implicitly the performance of the turbojet engine. The optimal heterogeneous combustion process of an aviation fuel is ensured by a stoichiometric ratio (fuel/fuel), a ...
Vasile PRISACARIU +2 more
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Energy Reports, 2022 This study presents a comprehensive investigation of the emission impact, environmental damage cost, exergoenvironmental and life cycle assessment (LCA) analyses of a micro turbojet engine (m-TJE) utilized on Unmanned Air Vehicle (UAV) for four different
Ozgur Balli +3 more
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Energies, 2020 This study dealt with evaluating the (J85-GE-5H) military turbojet engine (TJE) in terms of exergetic and advanced exergetic analyses at Military (MIL) and Afterburner (AB) process modes by utilizing kerosene (JP-8) and hydrogen (H2) fuels. First, exergy
Burak Yuksel +3 more
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Evolutionary auto-design for aircraft engine cycle
Complex & Intelligent Systems, 2023 Traditional engine cycle innovation is limited by human experiences, imagination, and currently available engine component performance expectations. Thus, the engine cycle innovation process is quite slow for the past 90 years. In this work, we propose a
Xudong Feng +3 more
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