Results 1 to 10 of about 7,514 (171)

Impact of Using Chevrons Nozzle on the Acoustics and Performances of a Micro Turbojet Engine [PDF]

open access: yesApplied 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
doaj   +5 more sources

Single Neural Adaptive PID Control for Small UAV Micro-Turbojet Engine [PDF]

open access: yesSensors, 2020
The micro-turbojet engine (MTE) is especially suitable for unmanned aerial vehicles (UAVs). Because the rotor speed is proportional to the thrust force, the accurate speed tracking control is indispensable for MTE.
Wei Tang   +3 more
doaj   +7 more sources

Micro turbojet engine nozzle ejector impact on the performance and transient regimes analysis

open access: yesCase Studies in Thermal Engineering
This study investigates the influence of an ejector nozzle on the performance and transient behavior of a micro turbojet engine. The problem addressed is the improvement of thrust and fuel efficiency in micro propulsion systems and offering new insights ...
Valentin Silivestru   +4 more
doaj   +5 more sources

Exergoenvironmental, environmental impact and damage cost analyses of a micro turbojet engine (m-TJE)

open access: yesEnergy Reports, 2022
This study presents a comprehensive investigation of the emission impact, environmental damage cost, exergoenvironmental and life cycle assessment (LCA) analyses of a micro turbojet engine (m-TJE) utilized on Unmanned Air Vehicle (UAV) for four different
Ozgur Balli   +3 more
doaj   +4 more sources

Gear-Shaped High‑g Combustion Chamber for Micro Turbojet Engine Applications [PDF]

open access: yesACS Omega
Enhancing combustion efficiency and optimizing the thrust-to-weight ratio are critical technical challenges encountered in the development, application, and growth of micro turbojet engines. The high-centrifugal (high-g) combustion chamber, as an innovative combustion chamber system, has the capability to replace the primary combustion chamber of the ...
Haozhong Huang   +4 more
doaj   +4 more sources

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

open access: yesEnergies, 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   +4 more sources

Research on the Application of Integrated Design on Micro Turbojet Engine

open access: yesHangkong gongcheng jinzhan, 2022
There are no detailed design criteria and methods for the integrated design of micro turbojet engine.The size and weight design and evaluation method for turbojet engines are used to perform the integrated design of several 9~80 kgf micro turbojet ...
CHEN Minze   +4 more
doaj   +2 more sources

Micro Turbojet Engine Nozzle Ejector Impact on the Acoustic Emission, Thrust Force and Fuel Consumption Analysis

open access: yesAerospace, 2023
This paper explores the implementation of an ejector to a micro turbojet engine and analysis of the advantages in terms of acoustic and thrust/fuel consumption.
Grigore Cican   +3 more
doaj   +3 more sources

Eddy Current Sensor System for Blade Tip Clearance Measurement Based on a Speed Adjustment Model [PDF]

open access: yesSensors, 2019
Blade tip clearance (BTC) measurement and active clearance control (ACC) are becoming crucial technologies in aero-engine health monitoring so as to improve the efficiency and reliability as well as to ensure timely maintenance. Eddy current sensor (ECS)
Jiang Wu   +6 more
doaj   +2 more sources

Optimum Design of Injection Ring for Micro-turbojet Engine

open access: yesHangkong 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   +4 more
doaj   +2 more sources

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