Browsing Makale Koleksiyonu by Issue Date
Now showing items 1-20 of 43
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Energy and emission assessments of continuous descent approach
(Emerald Group Publishing Limited, 2010)Purpose - Continuous descent approach (CDA) is a method, which allows the aircraft flying its individual optimal vertical profile down to runway threshold with engines operating at low-thrust power. The main objective of ... -
Relationship between fuel consumption and altitude for commercial aircraft during descent: Preliminary assessment with a genetic algorithm
(Elsevier France-Editions Scientifiques Medicales Elsevier, 2012)Despite fuel flow rates being low during descent compared to climb and cruise, the potential exists for significant fuel savings during that phase of flight. Increased fuel use, costs and related environmental impacts are ... -
Uçak Yapılarında Perçinlenmiş Bindirme Mafsalları Etrafındaki Çatlak İlerlemesi ve Çoklu Çatlak Etkileşimlerinin Sonlu Elemanlar Yöntemi ile Tahmini
(2012)Bu çalışmada perçinlenmiş bindirme mafsalları etrafındaki yorulma çatlak ilerlemesi hızı, sonlu elemanlar yöntemi kullanılarak tahmin edilmiştir. Bir McDonnell Douglas C-15 uçağında kanat yüzeyinde bulunan 2024-T3 Alüminyum ... -
NOx, fuel consumption and time effects of flight path angle during descent
(SAGE Publications LTD, 2013)Due to factors affecting flight operation and air traffic management, such as air traffic separation, avoidance of traffic from congested areas, or facilitating separation with crossing traffic, as well as environmental ... -
Empirical model assessment of commercial aircraft emissions according to flight phases
(2013)The quantities of common emissions are investigated for a specific type of commercial aircraft. Actual flight data and International Civil Aviation Organization emission data are used. All flight phases are considered, ... -
Fuel flow analysis for the cruise phase of commercial aircraft on domestic routes
(Elsevier France-Editions Scientifiques Medicales Elsevier, 2014)From the point of view of the environmental impact of aviation, rather than fundamental strategies mainly intended for lower fuel consumption, and thereby less carbon dioxide emissions, more comprehensive approaches have ... -
Analysis of Test-Cell Emission Measurements of Newly Overhauled Turbofan Engines
(Amer Inst Aeronautics Astronautics, 2015)In this study, the gaseous emissions of newly overhauled CFM56-3B1 and -3B2 series turbofan engines are measured in a test-cell environment during typical functional and performance test procedures. The measured emissions ... -
Transforming lighting system for more greener: applying to the terminal building
(Inderscience Enterprises LTD, 2015)In this paper, four fundamental subjects, renewable energy resources, eco-friendly buildings, lighting systems and energy saving in airport terminal buildings, have been analysed based on the subject of energy. In addition ... -
Combustion efficiency analysis and key emission parameters of a turboprop engine at various loads
(Elsevier Sci LTD, 2015)In this study, combustion efficiency of a military type turboprop engine is determined at various loads with the aid of emission data. Also, emission data collected from the engine run at various loads by experimental ... -
Advanced exergy analysis of an aircraft gas turbine engine: Splitting exergy destructions into parts
(Pergamon-Elsevier Science LTD, 2015)Advanced exergy analysis of an aircraft gas turbine engine is presented in this paper. In this framework, the main exergy parameters of the engine components are introduced while the exergy destruction rates within the ... -
Fuel flow-rate modelling of transport aircraft for the climb flight using genetic algorithms
(Royal Aeronautical Soc, 2015)In this study, development of a new fuel flow rate model for the climbing phase of flight was achieved using a genetic algorithm (GA) method. Two modelling approaches were performed using real flight data records (FDRs) ... -
Modeling the fuel flow-rate of transport aircraft during flight phases using genetic algorithm-optimized neural networks
(Elsevier France-Editions Scientifiques Medicales Elsevier, 2016)Predicting the fuel consumption of transport aircraft is vital for minimizing the detrimental effects of fuel emissions on the environment, saving fuel energy sources, reducing flight costs, achieving more accurate aircraft ... -
Analysis of a quantum irreversible Otto cycle with exergetic sustainable index
(Elsevier Science BV, 2016)In this study, exergetic sustainability index is applied to quantum irreversible Otto cycle with -1/2 spin system. Exergetic sustainability index in a quantum engine is used first time. This index is the ratio of exergy ... -
Analysis of a nano-scale thermo-acoustic refrigerator
(Elsevier Sci LTD, 2016)Purpose of this study is to analyze a nano scale thereto-acoustic refrigeration cycle in terms of its thermodynamic performance. A nano scale thermo-acoustic refrigerator operating with Maxwell-Boltzmann gas and He is ... -
Effects of Ambient Air Temperature on Gaseous Emissions of Turbofan Engines
(Amer Inst Aeronautics Astronautics, 2016)This study presents the results of analyses related to the effects of ambient air temperature (ranging from 5.2 to 23.9 degrees C) on certain engine performance parameters and gaseous emissions, carbon monoxide and nitrogen ... -
An Analysis of Vertical Profiles of Wind and Humidity Based on Long-Term Radiosonde Data in Turkey
(2016)The prediction of atmospheric variables is fundamentally important for flight, and efficiency with environmental impact analyses of aircraft. However, certain variables are less predictable leading to inefficient utilization ... -
Sivil Pilot Adayları İçin Seçim Kriterlerinin Belirlenmesi
(2016)Havacılık sektörü için pilotlar veya hava trafik kontrolörleri gibi operatörlerin seçimi önemlidir. Pilot eğitiminin maliyetinin yüksek olmasından dolayı, okulu bırakma ve başarısızlıklar organizasyon için büyük bir kayıptır. ... -
Energy and Entropy Analyses of an Experimental Turbojet Engine For Target Drone Application
(2016)This study investigates energy and entropy analyses of an experimental turbojet engine build in Anadolu University Faculty of Aeronautics and Astronautics Test-Cell Laboratory. Law of motions and Brayton thermodynamic cycle ... -
Examination of performance indicators' effects based on propulsion parameters in a turboprop engine
(Inderscience Enterprises LTD, 2016)In this study, propulsion indicators and their effects have been described by reference to the actual data of a turboprop engine. Then, the effects of these indicators on exergetic and environmental performance efficiencies ... -
Tuning of controller for an aircraft flight control system based on particle swarm optimization
(Emerald Group Publishing LTD, 2016)Purpose - This study aims to present a method for the conceptual design and simulation of an aircraft flight control system. Design/methodology/approach - The design methodology is based on particle swarm optimization ...
