Güncel Gönderiler: Makale Koleksiyonu
Toplam kayıt 99, listelenen: 21-40
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Climb Performance of Piston-Propeller Airplane with Cambered Wing and Variable Propeller Efficiency
(Amer Inst Aeronaut Astronaut, 2011)More accurate analytical solutions of the maximum rate of climb and maximum climb angle are proposed for the climbing flight of the piston-propeller airplane. For the solutions, it is assumed that the propeller efficiency ... -
Estimating Aircraft Fuel Flow for a Three-Degree Flight-Path-Angle Descent
(Amer Inst Aeronaut Astronaut, 2011)The objective of this study is to develop statistically significant models in order to determine the effects of altitude on fuel consumption of commercial aircraft during descent for a specific flight-path angle. In this ... -
Exergetic analysis of an aircraft turbofan engine
(John Wiley & Sons LTD, 2007)The main objective of the present study is to perform an exergy analysis of a turbofan kerosene-fired engine with afterburner (AB) at sea level and an altitude of 11000 m. The main components of this engine include a fan, ... -
Aero-propulsive modelling for climb and descent trajectory prediction of transport aircraft using genetic algorithms
(Royal Aeronautical Society, 2014)In this study, a new aero-propulsive model (APM) was derived from the flight manual data of a transport aircraft using Genetic Algorithms (GAs) to perform accurate trajectory predictions. This new GA-based APM provided ... -
Constant altitude-constant Mach number cruise range of transport aircraft with compressibility effects
(Amer Inst Aeronaut Astronaut, 2006)An approximate solution of the constant altitude-constant Mach number cruise range for high subsonic speed flight of the turbojet/fan aircraft is proposed. The solution considers cambered wing drag polar of modern transport ... -
Experimental studies of particle packing and combustion behavior of the slip cast SiO2-Al-C system
(Kluwer Academic Publ, 2000)… -
An exergy way to quantify sustainability metrics for a high bypass turbofan engine
(Pergamon-Elsevier Science LTD, 2015)As fuel efficiency becomes a greater concern in aero engine design and operation. To meet this need, a new methodology is being developed here that proposes the use of exergetic metrics for mapping the exergy flows throughout ... -
Designation of Environmental Impacts and Damages of Turbojet Engine: A Case Study with GE-J85
(MDPI, 2014)Between the troposphere and stratosphere layers of the atmosphere is a critical zone for collecting emissions and negative effects on the Earth (ecological, humanity, and resources). Aircrafts are the main causes of the ... -
Effect of reference altitudes for a turbofan engine with the aid of specific-exergy based method
(Inderscience Enterprises LTD, 2012)This paper presents effect of reference altitudes on the exergetic efficiency of a engine with the aid of specific exergy method. between 4000-9000 m. In the analysis, and exergy efficiency of the engine is found to be ... -
Approximate solutions of range for constant altitude - constant high subsonic speed flight of transport aircraft
(Editions Scientifiques Medicales Elsevier, 2004)Approximate cruise range solutions are introduced for the constant altitude - constant high subsonic speed flight of turbojet/fan transport aircraft with cambered wing design. The variation of the specific fuel consumption ... -
Calculation of domestic flight-caused global warming potential from aircraft emissions in Turkish airports
(Inderscience Enterprises LTD, 2014)In this study, global warming potential (GWP) is calculated for aircrafts used in Turkish airports. The basic idea of this study is to investigate both emissions and their GWP values. This study is conducted in three steps, ... -
Impact of aircraft performance differences on fuel consumption of aircraft in air traffic management environment
(Emerald Group Publishing Limited, 2004)Performance differences between the aircraft types are natural and they inevitably cause problems in the air traffic system, particularly when slower aircraft types are followed by faster types in a climb or cruise queue. ... -
Strategic approach to managing human factors risk in aircraft maintenance organization: risk mapping
(Emerald Group Publishing LTD, 2019)Purpose Aviation has multi-cultural business environment in all aspects as operational and management. Managing aviation requires high awareness on human factor risk which includes organizational behavior-related topics. ... -
An Analysis of the Factors Influencing Score Achieved during Pilot Training
(Japan Soc Aeronaut Space Sci, 2017)Human error is considered a causal or contributory factor in a major part of aviation incidents. It's also known from relevant research and reports that even the smallest error made by a person can cause fatal results in ... -
Aircraft fuel system energy and exergy analysis under hot day conditions
(Inderscience Enterprises LTD, 2018)In this paper, energy and exergy analysis of the fuel system is performed to investigate the variation of flow and heat energies of fuel. Thermal balance, formed by many different components of aircraft systems by means ... -
Partial substitution of hydrogen for conventional fuel in an aircraft by utilizing unused cargo compartment space
(Pergamon-Elsevier Science LTD, 2010)Options are being actively sought in aviation to switch from petroleum-based fuels to alternative fuels, of which hydrogen is a promising candidate, despite challenges associated with its production and storage. The ... -
Assessment of emissions at busy airports
(John Wiley & Sons LTD, 2010)Emissions are determined in the vicinity of airports and used to demonstrate that aircraft movements in the airport, as measured by landings and takeoffs, are not sufficient to evaluate the cumulative emission formation ... -
Estimation of vertical and horizontal distribution of takeoff and climb NOx emission for commercial aircraft
(Pergamon-Elsevier Science LTD, 2013)An investigation of takeoff and climb NOx emissions is reported for a twin-engine, narrow-body, short-to-medium haul commercial aircraft, B737-800. Ten randomly selected flights are considered for two independent domestic ... -
Exergy analysis of a turbofan aircraft engine
(Inderscience Enterprises LTD, 2009)An exergy analysis is reported for a General Electric turbofan engine (the CF6-80) using sea-level data. The effects on exergy efficiencies and exergy destructions are investigated of modifying the isentropic efficiencies ...
