Results 21 to 30 of about 362 (183)
International Journal of Turbomachinery, Propulsion and Power, 2022 Presented herein is a comparative performance analysis of a novel turbofan engine with an auxiliary combustion chamber, nicknamed the TurboAux engine, against a turbojet engine, and a low bypass ratio turbofan engine with an afterburner is presented. The
Kaleab Fetahi +2 more
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Three-Dimensional Optimization of Blade Lean and Sweep for an Axial Compressor to Improve the Engine Performance [PDF]
Journal of Applied Fluid Mechanics, 2023 Nowadays, optimization methods have been considered as a practical tool to improve the performance of turbo-machines. For this purpose, the numerical study of the aerodynamic flow of the NASA Rotor-67 axial compressor has been investigated, and the ...
M. Heidarian Shahri +2 more
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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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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 ...
openaire +1 more source
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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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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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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Mach 4 Simulating Experiment of Pre-Cooled Turbojet Engine Using Liquid Hydrogen
Aerospace, 2022 This study investigated a pre-cooled turbojet engine for a Mach 5 class hypersonic transport aircraft. The engine was demonstrated under takeoff and Mach 2 flight conditions, and a Mach 5 propulsion wind tunnel test is planned.
Hideyuki Taguchi +5 more
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