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Numerical calculation of energy and exergy flows of a turboshaft engine for power generation and helicopter applications
(Pergamon-Elsevier Science LTD, 2016)Fuel efficiency of aircraft and helicopter becomes greater concern in recent years caused by rising fuel costs and as well as environmental impact of aviation emissions. Modern helicopters, however, highly complex systems ... -
Operating Temperatures of the Solar Cells Used in the Concentrator System With Radiating Plates
(Turkish Soc Thermal Sciences Technology, 2016)A solar cell concentrator system is offered to satisfy the energy requirement of the satellites orbited around the Earth. The solar cells coupled to the system are exposed to sunlight concentrated 124 times with a Cassegrain ... -
Operatingtemperaturesofthesolarcellsused Intheconcentrator System with Radiating Plates
(2016)Dünya çevresinde yörüngede dönen uyduların enerji ihtiyacını karşılamak için bir yoğunlaşmalı güneş hücresi sistemi önerilmiştir. Cassegrain tipi bir yansıtıcı kullanılarak 124 defa yoğunlaştırılan güneş ışığı sistemde yer ... -
Optlimisatlion of runway orlientatilons for three-runway configurations
(Royal Aeronautical Soc, 2016)Determination of runway orientation is a prime factor affecting the layout of airport facilities. This paper presents a new computer model called TORO (Tool for Optimum Runway Orientation) which is developed with an approach ... -
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 ... -
Performance Evaluation of an Experimental Turbojet Engine
(Walter De Gruyter GMBH, 2017)An exergy analysis is presented including design parameters and performance assessment, by identifying the losses and efficiency of a gas turbine engine. The aim of this paper is to determine the performance of a small ... -
A qualitative study on the exploration of challenges to the implementation of the Safety Management System in aircraft maintenance organizations in Turkey
(Elsevier Sci LTD, 2015)Safety management has recently started using a paradigm that 'sees the world as it is' rather than 'prescribing how it should be'. The Safety Management System (SMS), a product of this paradigm shift, has fairly new and ... -
Reducing Operational Fuel Costs of Airlines: A Model for Monitoring and Managing Fuel Consumption Using Unified Modeling Language
(2018)The economical balance of airline operators is fragile because of their presence in a highly competitive environment and high fixed and variable costs. The ability of airline companies to cope with high competition by ... -
Rotor Balancing with Turbine Blade Assembly Using Ant Colony Optimization for Aero-Engine Applications
(Walter de Gruyter GmbH, 2017)The purpose of this paper is to present a novel turbine balancing using Ant Colony Optimization method. Results are compared against well known optimization methods available at open literature. With the new approach, ... -
Sensor Faults Diagnosis in Aircraft Lateral Flight Control Using Model Based Approaches
(2015)Bu çalışmada, algılayıcı arızası tespiti ve ayrımı ele alınmaktadır. Havacılık gibi yüksek emniyet gerektiren kontrol sistemlerinde arıza tespiti ve ayrımı teknikleri kullanılmaktadır. Böyle sistemlerde, arızalar istenmeyen ... -
Seramik Sağlık Gereçlerinin Sinterleme Sıcaklığının Fiziksel Özelliklere ve Tahribatsız Muayane Yöntemine Etkisi
(2016)Bu çalışmada, inşaat malzemeleri içinde sınıflandırılan seramik sağlık gereçlerinin, sıcaklığa bağlı olarak fiziksel özelliklerinin ve ultrasonik hızlarının değişiminin incelenmesi hedeflenmiştir. Bu amaçla, laboratuvar ... -
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. ... -
A study of challenges to the success of the safety management system in aircraft maintenance organizations in Turkey
(Elsevier Science BV, 2015)The ICAO is an international regulatory authority put in place, in addition to current prescriptive regulatory approaches based on regulatory compliance that use reactive tools, performance based approaches that focus on, ... -
Sustainability assessment of PW6000 turbofan engine: an exergetic approach
(Inderscience Enterprises LTD, 2014)In this paper, theory, methodology and example application are developed and shown for a PW6000 high-bypass turbofan engine in terms of exergo-sustainable perspective. To obtain exergetic sustainability indicators, first, ... -
Sustainability Metrics of a Small Scale Turbojet Engine
(Walter De Gruyter GMBH, 2018)Over the last decade, sustainable energy consumption has attracted the attention of scientists and researchers. The current paper presents sustainability indicators of a small scale turbojet engine, operated on micro-aerial ... -
Thermo-Efficiencies of a Tubular Combustor under Different Inlet Conditions
(Walter de Gruyter GmbH, 2018)Exergy efficiencies of the gas turbine become an important issue in recent years and by the way conducted studies regarding to this subject shows that the highest exergy destruction is observed in the combustor and afterburner ... -
UAV path planning using segmented cellular evolutionary algorithm
(Inderscience Enterprises LTD, 2016)Path planning is one of the most important issues for sustainable development of unmanned aerial vehicles (UAVs). The aim of the path planning is to provide the shortest and safest route. In this study, an algorithm has ... -
Unsteady compressible flow simulation around low-aspect-ratio rectangular flat wings
(Professional Engineering Publishing LTD, 2011)Unsteady compressible flow solutions around a sharp-edged rectangular flat wing of an aspect ratio of 1.0 are obtained using a parallel Reynolds-averaged Navier-Stokes algorithm. The simulated cases are obtained for Mach ... -
Using emission index to determine energy efficiency and environmental parameters of a turbofan engine at various flight phases
(Inderscience Enterprises LTD, 2016)In this study, an unordinary methodology for energy efficiency calculation of a turbofan engine is introduced. Emission indexes of the engine are used to find out energy efficiency and novel parameters for environmental ... -
Using some performance parameters to predict exhaust gas emissions of a turboprop engine: adaptive neuro-fuzzy method
(Inderscience Enterprises LTD, 2016)This paper presents an exhaust gas emissions prediction model for a turboprop engine depending on some performance parameters. Within this context, experimentally collected emissions data is used to develop a model in the ...