Results 21 to 30 of about 1,922 (189)
Impact of Using Chevrons Nozzle on the Acoustics and Performances of a Micro Turbojet Engine
Applied Sciences, 2021 This paper presents a study regarding the noise reduction of the turbojet engine, in particular the jet noise of a micro turbojet engine. The results of the measurement campaign are presented followed by a performances analysis which is based on the ...
Grigore Cican +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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Aviation, 2019 Micro turbojets can be used for propulsion of civilian and military aircraft, consequently their investigation and control is essential. Although these power plants exhibit nonlinear behaviour, their control can be based on linearized mathematical models
Khaoula Derbel, Károly Beneda
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Review of Small Gas Turbine Engines and Their Adaptation for Automotive Waste Heat Recovery Systems
International Journal of Turbomachinery, Propulsion and Power, 2020 Current commercial and heavy-duty powertrains are geared towards emissions reduction. Energy recovery from exhaust gases has great potential, considering the mechanical work to be transferred back to the engine.
Dariusz Kozak, Paweł Mazuro
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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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Ecologic performance and sustainability evaluation of a turbojet engine under on-design conditions
Aviation, 2018 Interest in air transportation in the last decade has seen aviation fleet growth and a rise in the energy consumption of aircraft. In accordance with the latest data, the air transportation sector consumes 7.5% of total oil consumption worldwide.
Yasin Şöhret
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Intelligent Thermal Imaging-Based Diagnostics of Turbojet Engines
Applied Sciences, 2019 There are only a few applications of infrared thermal imaging in aviation. In the area of turbojet engines, infrared imaging has been used to detect temperature field anomalies in order to identify structural defects in the materials of engine casings or
Rudolf Andoga +6 more
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The optimization of a jet turbojet engine by PSO and searching algorithms [PDF]
Journal of Applied Science, Engineering, Technology, and Education, 2018 The turbojet engine operates on the ideal Brayton cycle (gas turbine) and consists of six main parts: diffusers, compressors, combustion chambers, turbines, afterburners and nozzles. Using computer code writing in MATLAB software environment, exergy analysis on all selected turbojet engine components, exergy analysis on J85-GE-21 turbojet engine for ...
Sorush Niknamian
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Evaluation of Turbojet Engine with Water Injection for Aircraft Use as Controlled Object
AerospaceThis study addresses an under-represented topic in turbojets’ design—the characterizing of this type of engine as an entity subject to automatic control.
Alexandru-Nicolae Tudosie, Mihai Lungu
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TURBOJET BYPASS ENGINE WITH AFTERBURNER WITH WATER INJECTION AFTER INPUT UNIT PERFORMANCE ANALYSIS
Авіаційно-космічна техніка та технологія, 2019 Development of perspective high-speed aircraft inseparably depends on the level of aircraft propulsion engineering as engine performances to determine aircraft capabilities as a whole. The basic requirements to engines of high-speed aircraft are increase
Юрий Александрович Улитенко
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