Yazar "Keçebaş, Ali" için listeleme
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Advanced exergo-environmental analyses and assessments of a real district heating system with geothermal energy
Yürüsoy, Muhammet; Keçebaş, Ali (Pergamon-Elsevier Science Ltd, 2017)This study is related to an environmental impact assessment of a district heating system with geothermal (DHS/G). For a real application, the Afyon DHS/G was selected. An advanced exergo-environmental analysis was used as ... -
Advanced exergoeconomic analysis with using modified productive structure analysis: An application for a real gas turbine cycle
Uysal, Cüneyt; Keçebaş, Ali (Elsevier, 2021)In this study, advanced exergoeconomic analysis is performed for a gas turbine cycle located in Inchon/ South Korea. In addition, an approach combining advanced exergy analysis with modified productive structure analysis ... -
Advanced Exergoeconomic Assessment of CO2 Emissions, Geo-Fluid and Electricity in Dual Loop Geothermal Power Plant
Güler, Onur Vahip; Gürbüz, Emine Yağız; Georgiev, Aleksandar G.; Keçebaş, Ali (MDPI, 2023)Binary geothermal power plants (GPPs) are mostly encountered in geothermal fields with medium and low temperatures. The design and operation of dual binary GPPs can be difficult due to the geothermal fluid properties. This ... -
Artificial Bee Colony-Based GMPPT for Non-homogeneous Operating Conditions in a Bifacial CPVT System
Demircan, Cihan; Keçebaş, Ali; Bayrakci, Hilmi Cenk (Springer International Publishing Ag, 2020)Photovoltaic (PV) modules directly convert the solar energy into electricity with electrical efficiency in 10-20%. The rest of the incident solar radiation reflects from front surface and converts into thermal energy which ... -
Artificial neural network-based optimization of geothermal power plants
Çetin, Gürcan; Özkaraca, Osman; Keçebaş, Ali (Elsevier, 2022)In the world, due to limited energy resources, low efficiency of renewable energies, complex and costly energy conversion technology, and environmental pollution, human beings are trying to develop and improve innovative ... -
Assessment of Total Operating Costs for a Geothermal District Heating System
Gökgedik, Harun; İncili, Veysel; Arat, Halit; Keçebaş, Ali (Springer Int Publishing Ag, 2015)District heating system (DHS), especially geothermal, is an important class of heating, ventilating, and air conditioning systems. This is due to the fact that in many countries and regions of the world, they have been ... -
Bina Isıtılmasında Havalı Güneş Kolektörü Destekli Isı Pompası Kullanımı
Güler, Onur Vahip; Ural, Tolga; Keçebaş, Ali (2020)Bu çalışmada, son yıllarda nüfus artışı ve teknolojinin yaygınlaşması ile birlikte birincil enerji tüketiminin artması yenilenebilir enerji kaynaklarına olan ilgiyi arttırmıştır. Bunlar arasında güneş enerji kaynaklı ... -
Binary geothermal power plant
Başoğul, Yusuf; Güler, Onur Vahip; Keçebaş, Ali (Elsevier, 2022)In this chapter, information about the binary cycle in geothermal power plants (GPPs) is given. Binary GPPs are thermodynamically closest to a fossil-sourced thermal power plant or nuclear power plant. In the binary GPP, ... -
COMPARATIVE THERMAL AND FLOW ANALYSES OF TWO DIFFERENT PLATE PATTERNS FOR A COMPACT PLATE HEAT EXCHANGER
Gürel, Barış; Keçebaş, Ali; Akkaya, Volkan Ramazan; Göltaş, Merve; Kurtuluş, Karani; Güler, Onur Vahip (Knowledge Center on Organic Rankine Cycle Technology (KCORC), 2022)It is known that the most significant difference of plate heat exchangers (PHEs) from other heat exchangers (HEs) is their heat transfer efficiency. The thinness of the plates separating the two fluids compared to the other ... -
Comparative thermodynamic evaluation of a geothermal power plant by using the advanced exergy and artificial bee colony methods
Özkaraca, Osman; Keçebaş, Ali; Demircan, Cihan (Pergamon-Elsevier Science Ltd, 2018)In this study, the thermodynamic performance of a binary geothermal power plant (GPP) is comparatively evaluated using the exergy analysis and optimization method. Thus, in addition to routes to improve the thermodynamic ... -
Comprehensive analysis of lightning strike activity on the power line for grid connected solar power plant
Demirel, Emre; Karaca Dolgun, Gülşah; Keçebaş, Ali (Elsevier Ltd, 2022)Transmission lines of the grid-connected solar power plants are affected by lightning strikes. According to the data taken from the malfunction report of the solar power plant located in the Aegean Region of Turkey, the ... -
Comprehensive transient analysis on control system in a photovoltaic power plant under lightning strike
Demirel, Emre; Karaca Dolgun, Gülşah; Keçebaş, Ali (Elsevier, 2022)Solar power plants are installed in high and open places to receive high solar radiation. However, this leaves them vulnerable to lightning strike. Lightning strike affects power plants in two ways, directly and indirectly. ... -
Conventional and advanced exergoeconomic analyses of geothermal district heating systems
Keçebaş, Ali; Hepbaşlı, Arif (Elsevier Science Sa, 2014)The present study deals with analyzing, assessing and comparing conventional and advanced exergoeconomic analyses to identify the direction and potential for energy savings of a geothermal district heating system in future ... -
Design and experimental analysis of a parallel-flow photovoltaic-thermal air collector with finned latent heat thermal energy storage unit
Yağız Gürbüz, Emine; Şahinkesen, İstemihan; Tuncer, Azim Doğuş; Keçebaş, Ali (Elsevier Ltd, 2023)In this work, it is aimed to improve the performance of a photovoltaic-thermal (PVT) air collector using finned latent heat thermal energy storage unit. In this regard, four different types of parallel-flow PVT (PPVT) ... -
Determination of optimum insulation thickness in pipe for exergetic life cycle assessment
Keçebaş, Ali (Pergamon-Elsevier Science Ltd, 2015)The energy saving and the environmental impacts' reduction in the world building sector have gained great importance. Therefore, great efforts have been invested to create energy-saving green buildings. To do so, one of ... -
The development of empirical models for estimating global solar radiation on horizontal surface: A case study
Bayrakçı, Hilmi Cenk; Demircan, Cihan; Keçebaş, Ali (Pergamon-Elsevier Science Ltd, 2018)This paper presents a comparison between empirical models in the literature and the development of new models for estimating global solar radiation on the horizontal surface in the city of Mugla/Turkey. The necessary ... -
Development of PID based control strategy in maximum exergy efficiency of a geothermal power plant
Çetin, Gürcan; Özkaraca, Osman; Keçebaş, Ali (Elsevier, 2021)The control strategy insures the efficiency, increased production and safety in new and complicated energy conversion systems. To this end, a thermodynamic model that simulates a real geothermal power plant is developed, ... -
An economic comparison and evaluation of two geothermal district heating systems for advanced exergoeconomic analysis
Keçebaş, Pınar; Gökgedik, Harun; Alkan, Mehmet Ali; Keçebaş, Ali (Pergamon-Elsevier Science Ltd, 2014)This paper refers to an economic comparison and evaluation of two geothermal district heating systems (GDHSs) under same reference state condition and mechanic/economic parameters by using an advanced exergoeconomic analysis. ... -
Educational and consciousness-raising movements for renewable energy in Turkey
Keçebaş, Ali; Alkan, Mehmet Ali (Sila Science, 2009)Turkey has some difficulties in meeting its energy need due to rapid industrialization and population growth. It is necessary to educate and raise the consciousness level of the future generations to use the renewable ... -
The effect of temperature distribution on parabolic triangular-based CPVT system performances: Electrical and thermal perspectives
Demircan, Cihan; Bayrakçı, Hilmi Cenk; Keçebaş, Ali; Calise, Francesco; Vicidomini, Maria (Elsevier Ltd, 2023)The performance of photovoltaic (PV) and photovoltaic-thermal (PVT) systems is affected by environmental parameters and working conditions such as, partial shading, refrigerant and operating temperature. This study focuses ...
