Results 21 to 30 of about 13,980 (163)

Sliding Mode Control for Micro Turbojet Engine Using Turbofan Power Ratio as Control Law [PDF]

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
doaj   +3 more sources

Linear dynamic mathematical model and identification of micro turbojet engine for Turbofan Power Ratio control

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
doaj   +4 more sources

Influence of Bioethanol Blends on Performances of a Micro Turbojet Engine [PDF]

Revista de Chimie, 2020
This paper proposes a study regarding the use of bioethanol as fuel for turbine engines used in aviation. For this purpose, three blends of 5, 10, and 15% concentrations of bioethanol mixed with Jet A fuel were tested on JET CAT P80 microturbo engine.
Grigore Cican, Marius Deaconu, Radu Mirea, Andrei Tiberiu Cucuruz   +3 more
semanticscholar   +3 more sources

Vibration Analysis of a Micro Turbojet Engine under Two Impeller Structural Faults

Proceedings of Global Power & Propulsion Society
Disk fracture and locking nut loosening of centrifugal impeller leads to severe vibration of micro turbojet engines, posing significant threats to engine stability and safety. In order to identify the engine vibration characteristics induced by the above two faults in a practical micro aero-engine, vibration acceleration of the engine casing is ...
Zhiming Yang, Ruixian Ma, Yongkui Lei, Linyuan Jia, Sara Alseiari, Heba Youssef, Maryam AlMheiri   +6 more
semanticscholar   +3 more sources

Flow physics in a micro turbojet engine inter-shaft fuel supply system [PDF]

Physics of Fluids
Inter-shaft fuel supply systems (ISFSSs) consisting of a shaft annulus and a fuel slinger are usually used in micro turbojet engines to pump the fuel to the combustor, aiming at reducing engine's size and weight. Differing from the configuration with stationary fuel pipework, the fast-rotating shaft in the annulus would induce significant drag ...
Zhixun Wang, Kehui Liu, Zhuo Wang, Feng Gao, Xiaofeng Sun   +4 more
semanticscholar   +3 more sources

Optimum Design of Injection Ring for Micro-turbojet Engine

Hangkong gongcheng jinzhan, 2018
The fuel injection ring is an important part of the micro-turbojet engine. The uniformity of fuel injection quantity determines the uniformity of the temperature field in the combustion chamber.
Tan Kun, Wang Yun, Zhang Fei, Zhang Yangyang, Li Junjie   +4 more
doaj   +3 more sources

Aerodynamic analysis of the small-scaled centrifugal compressor for micro-turbojet engine applications

Journal of Physics: Conference Series, 2021
Abstract This paper presents the results of an aerodynamic analysis of a small-scaled transonic centrifugal compressor for micro turbojet engine (TJE) applications. The analysis was conducted using a CFD model validated by experimental data collected for the gaged JetCat P200-RX micro-TJE.
A.A. Sebelev, A.S. Tikhonov, V.A. Aleksenskiy, A.A. Shengals, O.I. Klyavin   +4 more
semanticscholar   +3 more sources

Intensification of convective heat exchange of walls of heat pipe of 3D-printed micro-sized turbojet engine [PDF]

Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2022
The article considers the solution of the urgent problem of creating a micro-sized turbojet engine using 3D printing. The article describes one of the ways to cool the walls of the heat pipe of a small combustion chamber made of heat-resistant material
A. V. Pobelyansky, D. K. Dmitriev, A. A. Levikhin   +2 more
doaj   +2 more sources

Three-Dimensional Computational Fluid Dynamics Simulation of the Turbine Blades of a Micro Turbojet Engine [PDF]

Journal of Physics: Conference Series, 2023
Micro turbojet engine has been widely used in both civil and military applications and their turbine blades are the key components that determine their performance.
Hao Zhang
semanticscholar   +2 more sources

Self-tuning speed and flow control of micro turbojet engines based on an improved evolutionary strategy [PDF]

Automatika
At present, the controllable parameters of micro turbojet engines in engineering applications are mainly speed-fuel flow (hereinafter referred to as flow) control, in which closed-loop proportional–integral–derivative (PID) control is mostly used to ...
Q. Gao, Jiahao Li, Yuxin Zhang
doaj   +2 more sources