Yazar "Karakoç, Tahir Hikmet" için 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 ... -
Concurrent Aircraft Routing and Maintenance Scheduling Using Goal Programming
Orhan, İlkay Erdoğan; Kapanoğlu, Muzaffer; Karakoç, Tahir Hikmet (Gazi University, Fac Engineering Architecture, 2012)An effective competition at the civil aviation sector could be possible by an effective fleet management. One of two important functions of the fleet management is to define the aircraft routes and plan the aircraft ... -
Customised application of exergy analysis method to PW120A turboprop engine for performance evaluation
Şöhret, Yasin; Sögüt, M. Ziya; Karakoç, Tahir Hikmet; Turan, Önder (Inderscience Enterprises LTD, 2016)In this paper, first and second laws of thermodynamics are applied on a turboprop engine of a regional aircraft. Performance parameters of the engine are assessed under take-off conditions and maximum power settings. Energy ... -
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 ... -
Döner fırın,soğutma ve yakıt sistemleri arasında otomasyon çalışmaları Çitosan Çorum Çimento Sanayiinde bir uygulama
ÇİTOSAN Çorum Çimento Sanayii 'nde tanı otomasyona hazırlık amacıyla veri analizi yapılmış ve fırın çalışmasını kontrol eden bilgisayar programı hazırlanmıştır. Bu programla, girilen işletme verileri ve hesaplanan parametreler ... -
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 ... -
The effects of the lead ($PbCl _2$) on mitotic cell division of Anatolian Black Pine (Pinus nigra ssp. pallasiana)
In this study, the effects of lead ($PbCl _2$) one of the significant environmental pollutant, on mitotic divisions of Anatolian Black pine was investigated. Different concentrations (300μM, 500μM and ... -
Energetic and exergetic analysis of building cogeneration systems
This study deals with types of micro cogeneration (or micro combined heat and power, MCHP) systems and reviews energetic and exergetic analysis of MCHP systems, which are also called building cogeneration systems. These ... -
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 and exergy efficiencies of a real CHP integrated ceramic factory
Yoru, Yılmaz; Karakoç, Tahir Hikmet; Hepbaşlı, Arif (Brazilian Society of Mechanical Sciences and Engineering, 2009)This study investigates the energy and exergy efficiency results of a cogeneration system in a ceramic factory based on the results of energy and exergy analysis. The considered ceramic factory located in Izmir, Turkey has ... -
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 ... -
Environmental assessment of a micro turbojet engine with the aid of exergy
Çoban, K.; Şöhret, Yasin; Colpan, C. Özgür; Karakoç, Tahir Hikmet (American Institute of Aeronautics and Astronautics Inc, AIAA, 2016)Environmental impact of the aviation industry has been an important issue in last decade. In order to decrease the environmental effect and to improve the efficiency of aero engines, one needs to understand the performance ... -
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 a vertical ground-source heat pump system with wall heating/cooling
Akbulut, U.; AcikgÖz, O.; Kincay, O.; Karakoç, Tahir Hikmet (Springer International Publishing, 2014)The present study deals with an exergetic analysis and assessment of a Vertical Ground-Source Heat Pump System (VGSHP) combined with a Wall Heating System (WHCS) in a building. This study is an experimental investigation ... -
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, ...