Results 41 to 50 of about 1,922 (189)

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

Experimental Analysis on the Operating Line of Two Gas Turbine Engines by Testing with Different Exhaust Nozzle Geometries

open access: yesEnergies, 2023
This paper presents a special analysis study about the gas turbine operating line, and an overall description of a gas turbines project, based on experimental data from two particular applications, in order to convert two different types of aero engines ...
Razvan Marius Catana   +1 more
doaj   +1 more source

Intake System Performance Stability as a Function of Flow Throttling

open access: yesEnergies, 2022
This paper presents a numerical analysis of the stability of the flow parameters along the intake duct of an aircraft jet turbine engine. This problem has been investigated by many research teams and was included in the literature analysis.
Adam Kozakiewicz   +3 more
doaj   +1 more source

Analysis of temperature distribution in the annular mixing chamber of a gas turbine engine

open access: yesАвіаційно-космічна техніка та технологія
The object of this research was the mixing chamber of a turbofan engine. The subject of this study was the thermogasdynamic processes in the mixing chamber of the turbojet engine before the turbine of the turbofan stage.
Illia Yudin
doaj   +1 more source

Numerical Simulation of Combustion Chamber for Button Turbojet Engine

open access: yesMATEC Web of Conferences, 2016
To provide reference data for ultra-micro combustor, a new type button turbojet engine was designed and simulated the combustion’s steady-state process.
Ma Hongpeng   +4 more
doaj   +1 more source

Investigation of Micro Gas Turbine Systems for High Speed Long Loiter Tactical Unmanned Air Systems

open access: yesAerospace, 2019
In this study, the on-going research into the improvement of micro-gas turbine propulsion system performance and the suitability for its application as propulsion systems for small tactical UAVs (<600 kg) is investigated.
James Large, Apostolos Pesyridis
doaj   +1 more source

Multivariable Adaptive Control for Turbojet Engines [PDF]

open access: yesVolume 2: Combustion and Fuels; Oil and Gas Applications; Cycle Innovations; Heat Transfer; Electric Power; Industrial and Cogeneration; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; IGTI Scholar Award, 1993
Integrated flight and propulsion control systems will require propulsion systems to reduce in time to accelerate engine and to improve transient performance for a full flight envelope operation. A multivariate model reference adaptive control (MRAC) scheme is proposed in this paper.
Jin-Quan Huang, Jian-Guo Sun
openaire   +2 more sources

Ramjet Compression System for a Hypersonic Air Transportation Vehicle Combined Cycle Engine

open access: yesEnergies, 2018
This report assesses the performance characteristics of a ramjet compression system in the application of a hypersonic vehicle. The vehicle is required to be self-powered and perform a complete flight profile using a combination of turbojet, ramjet and ...
Sasha Veeran   +2 more
doaj   +1 more source

Theoretical investigation of acceleration of a turbojet engine

open access: yes, 1947
The failure of turbojet aircraft propulsion units to accelerate rapidly to high thrust operation when emergencies arise in slow speed flight has restricted their use in aircraft applications, and has also concentrated considerable attention upon their acceleration characteristics in an effort to produce better results.
Satterfield, Loys Malcolm   +1 more
openaire   +3 more sources

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  

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