Kurum Yazarı "Turan, Önder" Makale Koleksiyonu İçin Listeleme
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Component-based exergetic measures of an experimental turboprop/turboshaft engine for propeller aircrafts and helicopters
Aydın, Hakan; Turan, Önder; Karakoç, Tahir Hikmet; Midilli, Adnan (Inderscience Enterprises LTD, 2012)In this paper, component-based exergetic assessment is presented for an experimental turboprop/turboshaft engine, including comparisons and exergetic performance such as their efficiencies, improvement potentials, exergy ... -
Dynamic modeling of exergy efficiency of turboprop engine components using hybrid genetic algorithm-artificial neural networks
Baklacıoğlu, Tolga; Turan, Önder; Aydın, Hakan (Pergamon-Elsevier Science LTD, 2015)Genetic algorithm is utilized to design the optimum initial value of parameters and topology of the artificial neural network which is trained by applying the improved backpropagation algorithm using momentum factor so as ... -
Effect of reference altitudes for a turbofan engine with the aid of specific-exergy based method
Turan, Önder (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 ... -
Energetic and exergetic efficiency modeling of a cargo aircraft by a topology improving neuro-evolution algorithm
Baklacıoğlu, Tolga; Aydın, Hakan; Turan, Önder (Pergamon-Elsevier Science LTD, 2016)An aircraft is a complex system that requires methodologies for an efficient thermodynamic design process. So, it is important to gain a deeper understanding of energy and exergy use throughout an aircraft. The aim of this ... -
Energy and exergy (ENEX) analyses of a MD-80 aircraft
Turan, Önder (International Journal of Mechanical Engineering and Robotics Research, 2016)The growth in demand for air transport is a problem for the global and local environment. There are, moreover, fundamental conflicts with sustainable development objectives. Sustainability demands a sustainable supply of ... -
Entropy Generation Calculation of a Turbofan Engine: A Case of CFM56-7B
Çılgın, Mehmet Emin; Turan, Önder (Walter De Gruyter GMBH, 2018)Entropy generation and energy efficiency of turbofan engines become greater concern in recent years caused by rises fuel costs and as well as environmental impact of aviation emissions. This study describes calculation of ... -
Environmental impact assessment of a turboprop engine with the aid of exergy
Atılgan, Ramazan; Turan, Önder; Altuntaş, Önder; Aydın, Hakan; Synylo, Kateryna (Pergamon-Elsevier Science LTD, 2013)To develop approaches that effectively reduce engine environmental effect of aircrafts, it is necessary to understand the mechanisms that have enabled improvements in thermodynamic efficiency of aircraft engines. In the ... -
Exergetic and exergo-economic analysis of a turboprop engine: a case study for CT7-9C
Aydın, Hakan; Turan, Önder; Midilli, Adnan; Karakoç, Tahir Hikmet (Inderscience Enterprises LTD, 2012)The turboprop engine has played an important role in short haul commuter and military transport aircraft where high speed is not critical. It may provide the aviation sector with one of the most significant means of achieving ... -
Exergetic sustainability assessment of a HALE UAV using dodecene fuel
Kaya, Nevzet; Turan, Önder; Midilli, Adnan; Karakoç, Tahir Hikmet (Inderscience Enterprises LTD, 2016)Exergetic sustainability performances of a high altitude long endurance (HALE) unmanned aerial vehicle (UAV), having a single turbofan engine and using dodecene as its fuel were investigated all along its flight profile, ... -
Exergo-sustainability indicators of a turboprop aircraft for the phases of a flight
Aydın, Hakan; Turan, Önder; Karakoç, Tahir Hikmet; Midilli, Adnan (Pergamon-Elsevier Science LTD, 2013)One of the key challenges for sustainable aviation is to reduce global and local environmental impacts. The scope of this study is analysed and discussed in detail for better understanding of sustainability performances ... -
Exergy analysis of an air-blasted combustor: an application for atmospheric test rig condition
Topal, Ahmet; Turan, Önder; Uslu, Sıtkı; Sögüt, M. Ziya (Inderscience Enterprises LTD, 2016)Combustion of fuel finds its importance in heating, power production and transportation. The main objective of this study is to assess the performance of an air-blasted combustor using the exergy at different combustor ... -
An exergy way to quantify sustainability metrics for a high bypass turbofan engine
Turan, Önder (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 ... -
Numerical calculation of energy and exergy flows of a turboshaft engine for power generation and helicopter applications
Turan, Önder; Aydın, Hakan (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 ... -
Rotor Balancing with Turbine Blade Assembly Using Ant Colony Optimization for Aero-Engine Applications
Piskin, A.; Aktaş, H. E.; Topal, Ahmet; Turan, Önder; Baklacıloğlu, T. (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, ... -
Sustainability assessment of PW6000 turbofan engine: an exergetic approach
Aydın, Hakan; Turan, Önder; Karakoç, Tahir Hikmet; Midilli, Adnan (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, ... -
Thermo-Efficiencies of a Tubular Combustor under Different Inlet Conditions
Topal, Ahmet; Turan, Önder (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
Gezer, Ahmet; Turan, Önder; Baklacıoğlu, Tolga (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 ... -
Using emission index to determine energy efficiency and environmental parameters of a turbofan engine at various flight phases
Şöhret, Yasin; Karakoç, Tahir Hikmet; Turan, Önder (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 ...