Kurum Yazarı "Karakoç, Tahir Hikmet" WoS İndeksli Yayınlar Koleksiyonu İçin Listeleme
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Determination of optimum insulation thickness for building's walls with respect to different insulation materials: a case study of International Hasan Polatkan Airport terminal
Akyüz, Mehmet Kadri; Altuntaş, Önder; Söğüt, Mehmet Ziya; Karakoç, Tahir Hikmet; Kurama, Semra (Inderscience Enterprises LTD, 2018)The systems in which energy is most intensely used in airport terminal buildings are HVAC systems. More efficient heating and cooling systems and the performance of the building envelope can provide significant reductions ... -
Dynamic energy and exergy analyses of an industrial cogeneration system
Yoru, Yılmaz; Karakoç, Tahir Hikmet; Hepbaşlı, Arif (Wiley, 2010)The study deals with the energetic and exergetic analyses of a cogeneration (combined heat and power, CHP) system installed in a ceramic factory, located in Izmir, Turkey. This system has three gas turbines with a total ... -
The effects of hydrogen fuel usage on the exergetic performance of a turbojet engine
Balli, Özgür; Şöhret, Yasin; Karakoç, Tahir Hikmet (Pergamon-Elsevier Science LTD, 2018)In this study, the hydrogen fuel effect on the exergetic performance of a turbojet engine used in a military trainer aircraft is investigated. For the first step, the performance assessments of the exergetic performance ... -
Energetic and exergetic performance assessment of a turboprop engine at various loads
Aydın, Hakan; Turan, Önder; Midilli, Adnan; Karakoç, Tahir Hikmet (Inderscience Enterprises LTD, 2013)It is necessary to understand the mechanisms that have enabled improvements of performance parameters such as thermodynamics efficiencies, thrust or power, specific fuel consumption and specific power in aero engines, thus ... -
Energy, exergy analysis, and sustainability assessment of different engine powers for helicopter engines
Yıldırım, Elif; Altuntaş, Önder; Mahir, Necati; Karakoç, Tahir Hikmet (Taylor & Francis Inc, 2017)The rapid decrease of energy resources has accelerated studies on energy efficiency. Energy efficiency refers to the effective use of energy, in other words, completing a specific task to the required standard by using ... -
Enterprise Risk Management Perspective
Yılmaz, Ayşe Küçük; Karakoç, Tahir Hikmet (Springer, 2010)… -
An environment-friendly engine selection methodology for aerial vehicles
Şöhret, Yasin; Kincay, Olcay; Karakoç, Tahir Hikmet (Taylor & Francis Inc, 2018)Emitted exhaust gases from aircraft are an issue of concern from an environmental perspective. Many research studies have been conducted aiming to reduce aircraft emissions in the hope of preventing any further increase ... -
Examination of performance indicators' effects based on propulsion parameters in a turboprop engine
Yalçın, Enver; Sögüt, M. Ziya; Karakoç, Tahir Hikmet (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 ... -
Exergetic analysis of an aircraft turbofan engine
Turgut, Enis Turhan; Karakoç, Tahir Hikmet; Hepbaşlı, Arif (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, ... -
Exergetic and Energetic Response Surfaces for Small Turbojet Engine
Turan, Önder; Karakoç, Tahir Hikmet (Trans Tech Publications LTD, 2012)Exergy analysis permits meaningful efficiencies to be evaluated for a system or process, and the sources, causes and locations of thermodynamic losses to be determined. This study presents exergetic modeling of a small ... -
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 and exergoeconomic assessment of a small-scale turbojet fuelled with biodiesel
Çoban, Kahraman; Şöhret, Yasin; Colpan, C. Özgür; Karakoç, Tahir Hikmet (Pergamon-Elsevier Science LTD, 2017)Exergetic performance and exergoeconomic analyses of a small-scale turbojet engine fuelled with either conventional aviation fuel or biofuel are conducted; and the performance and cost flow of the engine are assessed. The ... -
Exergetic Destruction Effects Of Operating Conditions On The Turbojet Engine Components
Karakoç, Tahir Hikmet; Turan, Önder (Trans Tech Publications LTD, 2012)The minimization of exergy destruction brings the design as closely as permissible to the theoretical limit. This study presents exergy destruction analysis of a turbojet engine for different flight Mach number and altitudes. ... -
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, ... -
Exergetic sustainability improvement potentials of a hydrogen fuelled turbofan engine UAV by heating its fuel with exhaust gasses
Kaya, Nevzet; Turan, Önder; Midilli, Adnan; Karakoç, Tahir Hikmet (Pergamon-Elsevier Science LTD, 2016)Exergetic sustainability parameters such as, exergy efficiency, waste exergy ratio, environmental effect factor and exergetic sustainability index were investigated for an UAV having a turbofan engine for the case its ... -
Exergetic Sustainability Indicators as a Tool in Commercial Aircraft: A Case Study for a Turbofan Engine
Aydın, Hakan; Turan, Önder; Karakoç, Tahir Hikmet; Midilli, Adnan (Taylor & Francis Inc, 2015)This paper focuses on the exergetic sustainability indicators of a medium-range commercial aircraft engine for constant reference environment and ground running conditions. First, a detailed exergy analysis of turbofan ... -
Exergetic, Exergoeconomic and Sustainability Assessments of Piston-Prop Aircraft Engines
Altuntaş, Önder; Karakoç, Tahir Hikmet; Hepbaşlı, Arif (Turkish Soc Thermal Sciences Technology, 2012)In this study, the exergetic, exergoeconomic, and sustainability aspects of piston-prop aircraft engines are comprehensively reviewed. These analysis and assessment tools are applied to a four-cylinder, spark ignition, ... -
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 ...