Results 21 to 30 of about 763,082 (323)

A proposal of a hydrogen injection system in to a miniature turbojet engine

open access: yesJournal of KONBiN, 2023
The solution proposed in this article, based on direct injection of hydrogen into the combustion chamber, offers many benefits, including a better volumetric efficiency, complete combustion (avoidance of premature ignition and backfire) and significant ...
Wojciech Prokopowicz, A. Frąckowiak
semanticscholar   +1 more source

Analysis of the influence of the nacelle on the thrust force of the fan circuit of the turbo-fan attachment

open access: yesАвіаційно-космічна техніка та технологія, 2023
The subject of this study is the interaction between the engine nacelle of a three-circuit turbojet engine and a turbofan attachment. The object of this research is a model of a cylindrical engine nacelle and a fan part of the impeller of a turbofan ...
Roman Maiboroda
doaj   +1 more source

Review of Small Gas Turbine Engines and Their Adaptation for Automotive Waste Heat Recovery Systems

open access: yesInternational 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
doaj   +1 more source

Ecologic performance and sustainability evaluation of a turbojet engine under on-design conditions

open access: yesAviation, 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
doaj   +1 more source

Bypass Turbojet Engines [PDF]

open access: yesProceedings 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

Medium independent jet (MI-Jet) engine

open access: yesPropulsion and Power Research, 2020
MI-Jet or medium independent jet engine is a new conceptual design which can be used in any gaseous atmosphere or in any planets with an ISP greater than that of the existing rocket engines.
Prajith Kumar K P, Aravind Vaidyanathan
doaj   +1 more source

Intelligent Thermal Imaging-Based Diagnostics of Turbojet Engines

open access: yesApplied 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
doaj   +1 more source

Three-Dimensional Optimization of Blade Lean and Sweep for an Axial Compressor to Improve the Engine Performance [PDF]

open access: yesJournal 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
doaj   +1 more source

The Fuzzy Logic in the Problems of Test Control of a Bypass Turbojet Engine Gas Generator

open access: yesMathematics, 2022
Continuous improvement in the operational characteristics of gas turbine equipment and a significant reduction in the time of its creation have led to the development and application of new technologies for conducting research tests of a gas generator ...
A. Inozemtsev   +7 more
semanticscholar   +1 more source

TURBOJET BYPASS ENGINE WITH AFTERBURNER WITH WATER INJECTION AFTER INPUT UNIT PERFORMANCE ANALYSIS

open access: yesАвіаційно-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
doaj   +1 more source

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