Results 11 to 20 of about 21,160 (284)

Probabilistic Model for Aero-Engines Fleet Condition Monitoring

open access: yesAerospace, 2020
Since aeronautic transportation is responsible for a rising share of polluting emissions, it is of primary importance to minimize the fuel consumption any time during operations.
Valentina Zaccaria   +3 more
doaj   +1 more source

The completion of the mathematical model by parameter identification for simulating a turbofan engine [PDF]

open access: yesINCAS Bulletin, 2015
The purpose of this paper is to set up a method to determine the missing engine design parameters (turbine inlet temperature T3T, airflow rate) which significantly influence the jet engines thrust.
Irina Carmen ANDREI   +3 more
doaj   +1 more source

Identification of Noise Sources in a Realistic Turbofan Rotor Using Large Eddy Simulation

open access: yesAcoustics, 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
doaj   +1 more source

Performance and Sustainability Analysis of an Organic Rankine Cycle System in Subcritical and Supercritical Conditions for Waste Heat Recovery

open access: yesEnergies, 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
doaj   +1 more source

Residue Cost Formation of a High Bypass Turbofan Engine

open access: yesApplied 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
doaj   +1 more source

A Comparative Performance Analysis of the Novel TurboAux Engine with a Turbojet Engine, and a Low-Bypass Ratio Turbofan Engine with an Afterburner

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2022
Presented herein is a comparative performance analysis of a novel turbofan engine with an auxiliary combustion chamber, nicknamed the TurboAux engine, against a turbojet engine, and a low bypass ratio turbofan engine with an afterburner is presented. The
Kaleab Fetahi   +2 more
doaj   +1 more source

Test Equipment Adding Electric Supercharger on Injection Machine for Biofuel Optimization [PDF]

open access: yesE3S 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
doaj   +1 more source

A Transport Aft-Turbofan [PDF]

open access: yesASME 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
openaire   +1 more source

Aircraft Turbofan Noise [PDF]

open access: yesVolume 5: Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; Process Industries, 1983
Recent advances in the understanding of turbofan noise generation and suppression in aircraft engines are reviewed with particular emphasis on NASA research. The review addresses each link in the chain of physical processes which connect unsteady flow interactions with fan blades to far field noise.
J. F. Groeneweg, E. J. Rice
openaire   +1 more source

Prospects for the use of hydrogen technologies in commercial civil aviation [PDF]

open access: yesPrzegląd 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
doaj   +1 more source

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