Results 1 to 10 of about 362 (183)

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   +3 more sources

Research on Carbon Footprint Reduction During Hydrogen Co-Combustion in a Turbojet Engine

open access: yesEnergies
The paper presents experimental studies on the effect of co-combustion of aviation kerosene with hydrogen in the GTM400 turbojet engine on the change in the carbon footprint generated by the engine in relation to its standard operation without hydrogen ...
Bartosz Ciupek   +2 more
doaj   +3 more sources

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

open access: yesAerospace
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   +8 more
doaj   +3 more sources

An example of use of gas turbine engine compressor, which has been mastered in production and has good characteristics in a new product project [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2022
The development of a new gas turbine engine requires a lot of time and money spent on the design and testing its compressor, which has been shown as the most complex and time-consuming assembly unit of the engine.
A. V. Grekhnev
doaj   +1 more source

High-Speed, Maneuverable, and Terrain-Adaptive Micro-Robot with Tree Frog-Inspired Bionic Feet. [PDF]

open access: yesAdv Sci (Weinh)
A 7.5 mm micro‐robot integrates tree frog‐inspired bionic feet with an electromagnetic linear motor to achieve high‐speed locomotion, slope climbing, and precise turning. It reaches 39 body lengths per second and ascends 30° slopes. The system demonstrates strong potential for inspection tasks in confined and complex environments, such as micro‐aero ...
Zhao W   +10 more
europepmc   +2 more sources

Performance Evaluation of a Turbojet Engine by Exergy Analysis of its Components [PDF]

open access: yesفناوری در مهندسی هوافضا, 2021
In this research, the performance of the J85-GE21 turbojet engine by exergy analysis of engine components was evaluated. The performance of the engine and its components for different power loads, at S.L.
Morteza Bayati
doaj   +1 more source

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   +1 more source

Analysis of possibility of using commercial micro turbojet engines for high-speed small-sized operational-tactical UAVs

open access: yesАвіаційно-космічна техніка та технологія, 2023
Despite the technological advances that made it possible to create serial commercial micro-turbojet engines with a thrust of up to 1.0 kN, engines of this type in the class of high-speed unmanned aerial vehicles (UAVs) weighing up to 200 kg have not yet ...
Olexander Khrulev
doaj   +1 more source

Design and Experimental Study of a Turbojet VTOL Aircraft with One-Dimensional Thrust Vectoring Nozzles

open access: yesAerospace, 2022
Turbojet engines have a slow response and require mechanical assistance to perform vertical take-offs and landings. In this paper, we propose a vertical take-off and landing (VTOL) aircraft that contains one-dimensional thrust vectoring nozzle modules to
Benshan Liu   +6 more
doaj   +1 more source

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