Yazar "Karakoç, Tahir Hikmet" için listeleme
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Advanced energy technologies in aviation
Karakoç, Tahir Hikmet; Özerdem, M. Barış; Söğüt, Mehmet Ziya (Pergamon-Elsevier Science LTD, 2017)… -
Advanced exergoenvironmental assessment of a building from the primary energy transformation to the environment
Açıkkalp, Emin; Hepbaşlı, Arif; Yucer, Cem Tahsin; Karakoç, Tahir Hikmet (Elsevier Science Sa, 2015)Buildings are of great importance in terms of consumption of energy all over the world. Building sector has a significant influence over the total natural resource consumption and is significant contributors of greenhouse ... -
Advanced exergy analysis of an aircraft gas turbine engine: Splitting exergy destructions into parts
Şöhret, Yasin; Acikkalp, Emin; Hepbaşlı, Arif; Karakoç, Tahir Hikmet (Pergamon-Elsevier Science LTD, 2015)Advanced exergy analysis of an aircraft gas turbine engine is presented in this paper. In this framework, the main exergy parameters of the engine components are introduced while the exergy destruction rates within the ... -
Advanced life cycle integrated exergoeconomic analysis of building heating systems: An application and proposing new indices
Açıkkalp, Emin; Hepbaşlı, Arif; Yucer, Cem Tahsin; Karakoç, Tahir Hikmet (Elsevier Sci LTD, 2018)Advanced exergy-based analysis and assessment tools have been considered very useful tools for detecting the interactions among components of energy-conversion systems and the real potential for improving each component ... -
Advanced low exergoeconomic (ALEXERGO) assessment of a building along with its heating system at various stages
Açıkkalp, Emin; Yucer, Cem Tahsin; Hepbaşlı, Arif; Karakoç, Tahir Hikmet (Elsevier Science Sa, 2015)The present study deals with evaluating the performance of a building heating system along with its main components using advanced low exergoeconomic analysis method. This method combines advanced exergoeconomic with low ... -
Advanced low exergy (ADLOWEX) modeling and analysis of a building from the primary energy transformation to the environment
Açıkkalp, Emin; Yucer, Cem Tahsin; Hepbaşlı, Arif; Karakoç, Tahir Hikmet (Elsevier Science Sa, 2014)The main objective of the present study is to model, analyze and assess a building heating system along with its main components through advanced low exergy method. This method is shortly called ADLOWEX and combines advanced ... -
Advantages and future of electric propulsion in UAVs
Yıldız, M.; Karakoç, Tahir Hikmet (Springer International Publishing, 2017)[No abstract available] -
Aircraft fuel system energy and exergy analysis under hot day conditions
Yilanli, Muhammet; Altuntaş, Önder; Acikkalp, Emin; Karakoç, Tahir Hikmet (Inderscience Enterprises LTD, 2018)In this paper, energy and exergy analysis of the fuel system is performed to investigate the variation of flow and heat energies of fuel. Thermal balance, formed by many different components of aircraft systems by means ... -
ANFIS-based comparative exhaust gases emissions prediction model of a military aircraft engine
Yazar, Işıl; Şöhret, Yasin; Karakoç, Tahir Hikmet (Inderscience Enterprises LTD, 2017)In this paper, comparison of estimation methods for exhaust gaseous emissions developed for a military aircraft engine via adaptive neuro-fuzzy inference system (ANFIS) structure is introduced. For system identification ... -
Application of Artificial Neural Network (ANN) method to exergy analysis of thermodynamic systems
Yoru, Yılmaz; Karakoç, Tahir Hikmet; Hepbaşlı, Arif (IEEE Computer Soc, 2009)Exergy is a way to sustainable development and may be defined as the maximum theoretical useful work, while exergy analysis identifies the sources, the magnitude and the causes of thermodynamic inefficiencies within each ... -
Application of thermodynamic laws on a military helicopter engine
Çoban, Kahraman; Colpan, C. Özgür; Karakoç, Tahir Hikmet (Pergamon-Elsevier Science LTD, 2017)By definition, a turboshaft engine is simply a gas turbine used to deliver shaft power such as to a helicopter rotor. This paper presents the energetic and exergetic analyses of a turboshaft engine which is used for military ... -
Ardyanmalı ve ayrık akışlı turbofanlarda fan basınç oranı ve bypass oranıyla toplam verimin değişiminin incelenmesi
Turan, Önder; Karakoç, Tahir Hikmet (2009)Toplam verim, itki sistemi ön tasarımda önemli bir parametredir ve motordan elde edilen itki gücünün motora verilen ısıl enerjiye oranı olarak tanımlanır. Bu çalışmada, ayrık akışlı ve ardyanmalı turbofan motorlarda fan ... -
Assessment of degradation effects for an aircraft engine considering exergy analysis
Sögüt, M. Ziya; Yalçın, Enver; Karakoç, Tahir Hikmet (Pergamon-Elsevier Science LTD, 2017)Despite the improvements in engine technology, the combustion processes and wear occurred in engine components affect performance adversely. The turbine and compressor fouling, degradation mechanisms such as erosion, ... -
Assessment of thermodynamic and environmental performances in subcooling process for different refrigerants
Altuntaş, Önder; Sögüt, M. Ziya; Yalçın, Enver; Karakoç, Tahir Hikmet (Inderscience Enterprises LTD, 2017)Subcooling application in cooling processes leads to increasing of cooling performance and energy efficiency within defined limits. This study examines subcooling effects of refrigerants on the coefficient of performance ... -
Assessment of thermodynamic performance and exergetic sustainability of turboprop engine using mixture of kerosene and methanol
Ekici, Selçuk; Altuntaş, Önder; Acikkalp, Emin; Sögüt, M. Ziya; Karakoç, Tahir Hikmet (Inderscience Enterprises LTD, 2016)In this study, first and second laws of thermodynamics were performed in the turboprop and is analysed and discussed with the mathematical model of sustainability performance of a turboprop engine using a mixture of ... -
Calculation of HC, CO and NOx from civil aviation in Turkey in 2012
Ekici, Selçuk; Yalın, Görkem; Altuntaş, Önder; Karakoç, Tahir Hikmet (Inderscience Enterprises LTD, 2013)To meet the growing demand for air transport, airline companies doubled their aircraft numbers in Turkey, where civil aviation activities have shown great development in recent years. This increase in aircraft numbers ... -
Carbon Foot Print of a Passanger Aircraft Engine at Landing and Take-Off Cycle
Şöhret, Yasin; Karakoç, Tahir Hikmet (Springer Int Publishing Ag, 2016)… -
Combustion efficiency analysis and key emission parameters of a turboprop engine at various loads
Şöhret, Yasin; Kincay, Olcay; Karakoç, Tahir Hikmet (Elsevier Sci LTD, 2015)In this study, combustion efficiency of a military type turboprop engine is determined at various loads with the aid of emission data. Also, emission data collected from the engine run at various loads by experimental ... -
Comparison of auxiliary power unit (APU) and ground power unit (GPU) with life cycle analysis in ground operations: A case study for domestic flight in turkey
Altuntaş, Önder; Ekici, S.; Yalın, G.; Karakoç, Tahir Hikmet (Trans Tech Publications Ltd, 2014)In this study, the Auxiliary Power Unit (APU) and the Ground Power Unit (GPU) that are required meet the energy demand in ground operations of aircraft were compared in terms of their damages -human health (disability ...
