Güncel Gönderiler: Havacılık ve Uzay Bilimleri Fakültesi
Toplam kayıt 257, listelenen: 141-160
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Investigating the exergetic and environmental effects of subcooling and superheating processes on the performance of direct expansion systems
(Springer International Publishing, 2014)Recently, subcooling and superheating applications, which are proposed as an approach for the efficient use of energy, have positive effect on the emission next to increasing the energy efficiency. This study examines ... -
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 performance of a low bypass turbofan engine at takeoff condition
(Springer International Publishing, 2014)In this article, exergetic methodology is applied for a low bypass turbofan engine at maximum power setting. The engine is a low-bypass (0.96–1) turbofan engine and its variants fitted to the 737-100/200 all comprise six ... -
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 ... -
Exergetic effects of some design parameters on the small turbojet engine for unmanned air vehicle applications
(Pergamon-Elsevier Science LTD, 2012)This article analyses some design parameters on the exergetic and energetic performances for a small turbojet engine for unmanned vehicles. On the basis of theoretical data employed, some exergetic and aerothermodynamics ... -
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, ... -
Linkages Between Risk and Human Resources Management in Aviation: An Empirical Investigation and the Way Forward in Selection of Ideal Airport Manager
(Springer-Verlag Singapore Pte LTD, 2017)Strategy, in the global business environment, is tied to competitiveness. Human resource management is inextricably linked with other organizational management functions as contemporary organizations are in need of both ... -
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. ... -
Business and Strategy Via Integration of Enterprise Risk Management: Air Transportation Case Study
(Springer-Verlag Singapore Pte LTD, 2017)Business management requires both holistic and tailored strategy for every business since every corporation has its own unique characteristics and qualifications. Different qualifications create different risks, and different ... -
Enterprise Risk Management in Terms of Organizational Culture and Its Leadership and Strategic Management
(Springer-Verlag Singapore Pte LTD, 2017)Enterprise risk management is not a kind of one time event. ERM may be considered as a management philosophy, mentality, and as a holistic system. As a leading holistic management system, Enterprise Risk Management will ... -
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. ...
