Results 1 to 10 of about 11,511 (277)
Intelligent Situational Control of Small Turbojet Engines
International Journal of Aerospace Engineering, 2018 Improvements in reliability, safety, and operational efficiency of aeroengines can be brought in a cost-effective way using advanced control concepts, thus requiring only software updates of their digital control systems. The article presents a comprehensive approach in modular control system design suitable for small gas turbine engines.
Rudolf Andoga +6 more
doaj +4 more sources
Robust Control of Small Turbojet Engines [PDF]
Machines, 2019 Modern turbojet engines mainly use computerized digital engine control systems. This opens the way for application of advanced algorithms aimed at increasing their operational efficiency and safety. The theory of robust control is a set of methods known for good results in complex control tasks, making them ideal candidates for application in the ...
Andoga, Rudolf +5 more
openaire +5 more sources
The optimization of a jet turbojet engine by PSO and searching algorithms [PDF]
Journal of Applied Science, Engineering, Technology, and Education, 2018 The turbojet engine operates on the ideal Brayton cycle (gas turbine) and consists of six main parts: diffusers, compressors, combustion chambers, turbines, afterburners and nozzles. Using computer code writing in MATLAB software environment, exergy analysis on all selected turbojet engine components, exergy analysis on J85-GE-21 turbojet engine for ...
Sorush Niknamian
openaire +6 more sources
Modelling of a turbojet gas turbine engine [PDF]
2015 Internet Technologies and Applications (ITA), 2015 Gas turbines are one of the most important internal combustion engines in the modern world's transportation. Any possible improvements of the performance of the gas turbine engines would help to minimize the world's annual fossil fuel consumption and hence the emissions of the adverse greenhouse gases.
Dominik Klein, Chamil Abeykoon
openaire +1 more source
Exergetic analysis of an aircraft turbojet engine with an afterburner [PDF]
, 2013 An exergy analysis is reported of a J85-GE-21 turbojet engine and its components for two altitudes: sea level and 11,000 meters. The turbojet engine with afterburning operates on the Brayton cycle and includes six main parts: diffuser ...
Anjiridezfuli A. +2 more
core +1 more source
THE CO-TURBOJET ENGINE: A NOVEL CONCEPT FOR MILTI-SPOOL TURBOJET ENGINES [PDF]
International Conference on Aerospace Sciences and Aviation Technology, 1985 The novel feature of the co-turbojet engine is the rotation of tne casing of the. high pressure compressor. This casing co-rotates, at lower speed, with the high pressure rotor of the turbojet engine, hence the name co-turbojet. The compressor casing"derives power from the high pressure air stream passing through the compressor and this power is used ...
openaire +1 more source
Experimental campaign tests on ultra micro gas turbines, fuel supply comparison and optimization [PDF]
, 2018 The increasing demand for miniaturized radio-controlled vehicles inspired the following research. The uses of these unmanned miniaturized/micro vehicles range from aero-modeling to drones for urban control and military applications too.
Capata, Roberto, Saracchini, Matteo
core +2 more sources
Proceedings 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
Acoustic transmission and reflection by a shear discontinuity separating hot and cold regions [PDF]
, 1972 Acoustic transmission and reflection is analyzed for plane waves propagating from a hot moving medium, impinging on a plane shear discontinuity into a cold stationary region.
Candel, S. M.
core +1 more source
Multivariable Adaptive Control for Turbojet Engines [PDF]
Volume 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