Yazar "Turan, Önder" için WoS İndeksli Yayınlar Koleksiyonu listeleme
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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 ... -
Exergy-based sustainability analysis of a low-bypass turbofan engine: A case study for JT8D
Turan, Önder; Aydın, Hakan (Elsevier Science BV, 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 ... -
Green hydrogen and fuel cell systems
Karakoç, Tahir Hikmet; Midilli, Adnan; Turan, Önder (Wiley-Blackwell, 2013)… -
IGECVI-special issue-Energy and exergy modeling of advance energy systems
Karakoç, Tahir Hikmet; Midilli, Adnan; Turan, Önder (Pergamon-Elsevier Science LTD, 2012)… -
Investigating the Effect of Turbine Inlet Temperature on the Exergetic Improvement Potential of a Small Turbojet Engine
Turan, Önder; Hepbaşlı, Arif; Karakoç, Tahir Hikmet (IEEE, 2017)This paper analyzes and evaluates exergetic improvement rate (IPex) of the components of a small turbojet engine with various turbine inlet temperatures. The engine consists of an inlet, starter generator, a centrifugal ... -
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 ... -
On-design exergy analysis of a combustor for a turbojet engine: a parametric study
Topal, Ahmet; Turan, Önder (Emerald Group Publishing LTD, 2017)Purpose - The purpose of this study is to perform an exergy analysis of a turbojet engine combustor at different cycle parameters. Design/methodology/approach - Base cycle parameters have been defined for the engine, and ... -
Parametric study of exergetic sustainability performances of a high altitude long endurance unmanned air vehicle using hydrogen fuel
Kaya, Nevzet; Turan, Önder; Karakoç, Tahir Hikmet; Midilli, Adnan (Pergamon-Elsevier Science LTD, 2016)Exergetic sustainability performances such as, exergy efficiency, waste exergy ratio, environmental effect factor and exergetic sustainability index of a HALE UAV were investigated parametrically. The UAV and its high ... -
Sustainability Assessment of a Turboprop Engine: Exergy-Based Method
Şöhret, Yasin; Sögüt, M. Ziya; Turan, Önder; Karakoç, Tahir Hikmet (Springer International Publishing Ag, 2017)Sustainable energy utilization is a necessary to reduce environmental impact and combat global warming in twenty-first century. For this purpose, sustainability parameters of a turboprop engine are presented with exergetic ... -
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, ... -
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 ...