Results 21 to 30 of about 9,897 (232)
Identification of Noise Sources in a Realistic Turbofan Rotor Using Large Eddy Simulation
Acoustics, 2020 Large Eddy Simulation is performed using the NASA Source Diagnostic Test turbofan at approach conditions (62% of the design speed). The simulation is performed in a periodic domain containing one fan blade (rotor-alone configuration). The aerodynamic and
Pavel Kholodov, Stéphane Moreau
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A Transport Aft-Turbofan [PDF]
ASME 1959 Gas Turbine Power Conference and Exhibit, 1959 This paper presents the technical status of a new type aft-turbofan aircraft powerplant, designated as the General Electric CJ805-21. The successful development to date of this aft-fan engine has amply demonstrated the feasibility of a major increase in power rating and a significant improvement in altitude cruise fuel economy by converting the CJ805-3
B. E. Sells, W. R. Dodge
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Environmental Science and Technology, 2021 Nonvolatile particulate matter (nvPM) emissions from aircraft turbine engines deteriorate air quality and contribute to climate change. These emissions can be reduced using sustainable aviation fuels (SAFs).
L. Durdina +5 more
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Residue Cost Formation of a High Bypass Turbofan Engine
Applied Sciences, 2020 The kinetic energy produced by a turbofan engine is inseparable from the unavoidable generation of waste heat dissipated into the environment and the chemical exergy of exhaust gases. However, exergoeconomic cost analyses of these propulsion systems have
Lugo-Méndez Helen +5 more
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Test Equipment Adding Electric Supercharger on Injection Machine for Biofuel Optimization [PDF]
E3S Web of Conferences, 2021 One of the problems that occur in our earth is air pollution and the depletion of fossil fuel stocks. Researchers want to make research on how the fuel burns completely, so that the resulting exhaust gas is environmentally friendly.
Umami Mahrus Khoirul +4 more
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Prospects for the use of hydrogen technologies in commercial civil aviation [PDF]
Przegląd Komunikacyjny, 2023 : The use of hydrogen technologies is the most effective way to decarbonise long- haul transport - including commercial aviation. Two leading technical solutions introducing hydrogen into the propulsion systems of civil airliners are the use of fuel ...
Jacek Nowicki
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Reliability Engineering & System Safety, 2019 In recent years, research has proposed several deep learning (DL) approaches to providing reliable remaining useful life (RUL) predictions in Prognostics and Health Management (PHM) applications.
A. L. Ellefsen +4 more
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PHM Society European Conference, 2022 Well-established metrics such as the Root Mean Square Error or the Mean Absolute Error are not suitable to evaluate estimated distributions of the Remaining Useful Life (i.e., probabilistic prognostics). We therefore propose novel metrics to evaluate the
Ingeborg de Pater, M. Mitici
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Energies, 2020 This study addresses the performance analysis of a subcritical and supercritical Organic Rankine Cycle (ORC) with the addition of a preheater or superheater integrated with a turbofan engine. This analysis will try to explore the heat transfer throughout
Syamimi Saadon, Nur Athirah Mohd Nasir
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The Water-Enhanced Turbofan as Enabler for Climate-Neutral Aviation
Applied Sciences, 2022 A significant part of the current aviation climate impact is caused by non-carbon-dioxide emissions, mainly nitrogen oxides (NOx) and contrails. It is, therefore, important to have a holistic view on climate metrics.
S. Kaiser +3 more
semanticscholar +1 more source