Results 11 to 20 of about 2,713 (191)

Experimental Investigation of a Micro Turbojet Engine Chevrons Nozzle by Means of the Schlieren Technique [PDF]

Inventions, 2023
In connection with subsonic jet noise production, especially regarding the hot jet from a micro turbojet engine, we encountered a lack of recent high-resolution data in the literature describing the flow field using experimental validation through ...
Grigore Cican, Mihnea Gall, Alina Bogoi, Marius Deaconu, Daniel Eugeniu Crunțeanu   +4 more
doaj   +3 more sources

A Study of an Integrated Analysis Model with Secondary Flow for Assessing the Performance of a Micro Turbojet Engine [PDF]

Applied Sciences
The objective of this study is to implement a more realistic integrated analysis model for micro gas turbines by incorporating secondary flow and combustion efficiency into the existing model, which includes main engine components such as the compressor ...
DongEun Lee, Heeyoon Chung, Young Seok Kang, Dong-Ho Rhee   +3 more
doaj   +4 more sources

Experimental Investigation of Particulate Number Measurement Methodology for Micro-Turbojet Engine Emissions [PDF]

Aerospace
Increasing aviation activities have heightened concerns about particulate emissions from aircraft engines. Current ICAO standards mainly focus on large civil turbofan engines, leaving a gap in the research on PN emissions from small aircraft engines ...
Zheng Xu, Minghua Wang, Guangze Li, Xuehuan Hu, Pengfei Yang, Meiyin Zhu, Bin Zhang, Liuyong Chang, Longfei Chen   +8 more
doaj   +4 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

Adaptive Fuzzy PID Controller applied to micro turbojet engine

Journal of Physics: Conference Series, 2021
Abstract Digital controllers are utilized for controlling modern gas turbine engines. Firstly, an identified discrete model is built for a micro turbojet engine (MTE) jet cat P200sx. Two controllers are designed, gain scheduling PID and adaptive fuzzy tuned PID controllers are presented in this paper.
A. M. Shehata, Mohamed K khalil, Mahmoud Ashry   +2 more
openalex   +2 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

Experimental Study on the Effect of Water Injection on a Micro Turbojet Engine

Repüléstudományi Közlemények, 2021
Due to increasing emissions in the 21st century, aviation  industry faces a rising pressure to reduce its contribution to air pollution. A possible way to mitigate such harmful  effects on the environment is to use water injection as a  thrust augmentation method which was developed in the  1960s.
Károly Beneda, Péter Balajti
openalex   +4 more sources

Modeling and Performance Simulation of a Micro Turbojet Engine Using Flownex [PDF]

Indian Journal of Science and Technology, 2019
Objectives: The study presents the results of modelling and analysis of a micro turbojet engine that can develop thrust in the range of 4 kN, that is sufficient to propel small UAVs and Drones. The modelling and simulation is carried out in Flownex simulation environment which is a powerful one-dimensional tool commercially available to analyze the ...
G. Jims John Wessley, Swati Chauhan
openalex   +2 more sources

Pembuatan Ignition System Pada Micro Turbojet Engine AERO–16

Jurnal Mahasiswa Dirgantara, 2022
Prinsip kerja mesin turbojet bergantung dari komponen utamanya. Komponen utama dari mesin turbojet yaitu kompresor, ruang bakar, turbin. Sebelumnya telah dilakukan pembuatan micro turbojet engine aero – 16 dimana masih ada kekurangan yang harus diperbaiki, salah satunya ignition system.
Indirwan Alex, Bismil Rabeta, Imron Rosadi   +2 more
openalex   +3 more sources

Study on micro-turbojet engine with high thrust-to-weight ratio [PDF]

Theoretical and Natural Science, 2023
Micro-turbojet engine refers to a closed cycle gas turbine engine with thrust below 500kg and power below 100kW. The performance indicators of domestic products are relatively low, and the main problems of domestic products are low thrust-to-weight ratio, poor reliability, and low heat resistance.
Jiayu Chen
openalex   +2 more sources