Kurum Yazarı "Karakoç, Tahir Hikmet" WoS İndeksli Yayınlar Koleksiyonu İçin Listeleme
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Mathematical modeling of heat recovery from a rotary kiln
Sögüt, M. Ziya; Oktay, Zuhal; Karakoç, Tahir Hikmet (Pergamon-Elsevier Science LTD, 2010)In this study, heat recovery from rotary kiln was examined for a cement plant in Turkey. At first, an exergy analysis was carried out on the operational data of the plant. Results indicated the presence of 217.31 GJ of ... -
Obstacle detection and collision avoidance using indoor quadrocopter
Kıyak, Emre; Gol, Gökhan; Karakoç, Tahir Hikmet (Inderscience Enterprises LTD, 2017)In this paper, autonomous control of the rotary-wing unmanned aerial vehicle (UAV) is provided by avoiding obstacles indoor area. There are many GPS-based studies on controlling of quadrocopter in the outdoor area in ... -
A Parametric Study of a Piston-Prop Aircraft Engine Using Exergy and Exergoeconomic Analysis Methods
Altuntaş, Önder; Karakoç, Tahir Hikmet; Hepbaşlı, Arif (Taylor & Francis Inc, 2015)In this study, exergetic and exergoeconomic analysis methods are applied to a four-cylinder, spark ignition (SI), naturally aspirated and air-cooled piston-prop aircraft engine in the cruise phase of flight operations. The ... -
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 ... -
Performance Evaluation of an Experimental Turbojet Engine
Ekici, Selçuk; Şöhret, Yasin; Çoban, Kahraman; Altuntaş, Önder; Karakoç, Tahir Hikmet (Walter De Gruyter GMBH, 2017)An exergy analysis is presented including design parameters and performance assessment, by identifying the losses and efficiency of a gas turbine engine. The aim of this paper is to determine the performance of a small ... -
Refrigeration inventory based on CO2 emissions and exergetic performance for supermarket applications
Sögüt, M. Ziya; Yalçın, Enver; Karakoç, Tahir Hikmet (Elsevier Science Sa, 2012)In this study, first energy and exergy analysis for supermarket cooling applications having high refrigerant capacity are examined and next, based on these analyses and different gases used. CO2 emission effect caused by ... -
Simulation-based dynamic model and speed controller design of a small-scale turbojet engine
Yazar, Işıl; Kıyak, Emre; Çalışkan, Fikret; Karakoç, Tahir Hikmet (Emerald Group Publishing LTD, 2018)Purpose This paper aims to present a nonlinear mathematical model of a small-scale turbojet aeroengine and also a speed controller design that is conducted for the constructed nonlinear mathematical model. Design/methodo ... -
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, ... -
Sustainability Metrics of a Small Scale Turbojet Engine
Ekici, Selçuk; Şöhret, Yasin; Çoban, Kahraman; Altuntaş, Önder; Karakoç, Tahir Hikmet (Walter De Gruyter GMBH, 2018)Over the last decade, sustainable energy consumption has attracted the attention of scientists and researchers. The current paper presents sustainability indicators of a small scale turbojet engine, operated on micro-aerial ... -
Sustainable carbon management in corporate governance: A case study
Sögüt, M. Ziya; Yalçın, Enver; Karakoç, Tahir Hikmet (Elsevier Science BV, 2019)Institutional structures having leader roles in sustainable development must make regular and sustainable situation analyses to improve management strategies and particularly energy resources when environmental strategies ... -
Thermoeconomic Analysis of Farine Mill in Dry Type Cement Production
Sögüt, M. Ziya; Oktay, Zuhal; Karakoç, Tahir Hikmet; Yörü, Yılmaz (Turkish Soc Thermal Sciences Technology, 2010)Thermoeconomics is the cost analysis based on the cost and exergy calculations which are used to determine the potential of unproductiveness in all of the thermal systems. This approach is also defined as 'exergy cost' and ... -
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 ... -
Using exergy for performance evaluation of a conceptual ramjet engine burning hydrogen fuel
Şöhret, Yasin; Ekici, Selçuk; Karakoç, Tahir Hikmet (Pergamon-Elsevier Science LTD, 2018)Ramjet engines are widely-used devices in the defence industry and have military applications. These engine types, preferred in many fields, are known to act according to the laws of thermodynamics. For this reason, exergy ... -
Using some performance parameters to predict exhaust gas emissions of a turboprop engine: adaptive neuro-fuzzy method
Şöhret, Yasin; Yazar, Işıl; Karakoç, Tahir Hikmet (Inderscience Enterprises LTD, 2016)This paper presents an exhaust gas emissions prediction model for a turboprop engine depending on some performance parameters. Within this context, experimentally collected emissions data is used to develop a model in the ...