Yazar "0000-0003-4809-2461" için WoS İndeksli Yayınlar Koleksiyonu listeleme
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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 ... -
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. ... -
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) ... -
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 ... -
Energy and exergy analyses of a coal-fired micro-CHP system coupled engine as a domestic solution
Keçebaş, Ali; İncili, Veysel; Karaca Dolgun, Gülşah; Ural, Tolga (Elsevier Ltd, 2023)In this study, a coal-fired stoker boiler and a beta-type rhombic-drive Stirling engine were manufactured and tested. The performance of the coal boiler with a Stirling engine has been investigated experimentally for the ... -
Enhancing the performance of an unglazed solar air collector using mesh tubes and Fe3O4 nano-enhanced absorber coating
Gürbüz, Emine Yağız; Şahinkesen, İstemihan; Kusun, Barış; Tuncer, Azim Doğuş; Keçebaş, Ali; Gürbüz, Emine Yağız (Elsevier Ltd, 2023)In the current article, it is intended to improve the performance of an unglazed solar air collector using mesh tubes as extended heat transfer surfaces and nano-enhanced black paint as a thermal conductivity booster of ... -
Enhancing the thermal performance of diffusion absorption refrigeration system by using magnesium aluminate spinel oxide compound nanoparticles: an experimental investigation
Sözen, Adnan; Keçebaş, Ali; Yağız Gürbüz, Emine (Springer Science and Business Media Deutschland GmbH, 2021)This article aims to enhance the efficiency of Diffusion Absorption Refrigeration (DAR) systems which operate at low efficiency. This study experimentally investigates the effect of passive heat transfer enhancement by ... -
Environmental impact assessment of a real geothermal driven power plant with two-stage ORC using enhanced exergo-environmental analysis
Gürbüz Yağız, Emine; Güler, Onur Vahip; Keçebaş, Ali (PERGAMON-ELSEVIER SCIENCE LTD, 2022)Geothermal driven power plants (GPPs) with two-stage ORC are mostly used in low-temperature geothermal fields around the World. The environmental impacts of these GPPs create a gap in the literature. In this study, enhanced ... -
Exergy and thermoeconomic analyses of the diffusion absorption refrigeration system with various nanoparticles and their different ratios as work fluid
Yağız Gürbüz, Emine; Keçebaş, Ali; Sözen, Adnan (PERGAMON-ELSEVIER SCIENCE LTD, 2022)The fact that diffusion absorption refrigeration (DAR) systems can also work with low power plants has increased the interest in these cooling systems again. The DAR systems are mostly analyzed using energy analysis. ... -
Experimental Evaluation of a Photovoltaic/Thermal Air Heater with Metal Mesh-Integrated Thermal Energy Storage System
Tuncer, Azim Doğuş; Gürbüz, Emine Yağız; Keçebaş, Ali; Georgiev, Aleksandar G. (MDPI, 2023)he objective of this study is to improve the performance of a hybrid photovoltaic/thermal (PV/T) air heater incorporating a thermal energy storage system (TESS) that uses paraffin and has metallic mesh layers. In the ... -
Experimental Investigation of a Concentrating Bifacial Photovoltaic/Thermal Heat Pump System with a Triangular Trough
Karaca Dolgun, Gülşah; Güler, Onur Vahip; Georgiev, Aleksandar G.; Keçebaş, Ali (MDPI, 2023)The heat absorbed by the heat transfer fluid for cooling a concentrated photovoltaic thermal (CPVT) solar collector can be used for purposes such as residential heating and cooking. Because of the combined production of ... -
Improvement of thermo-hydraulic performance with plate surface geometry for a compact plate heat exchanger manufactured by additive manufacturing
Göltaş, Merve; Gürel, Barış; Keçebaş, Ali; Akkaya, Volkan Ramazan; Güler, Onur Vahip (PERGAMON-ELSEVIER SCIENCE LTD, 2022)Today, compact PHEs produced by additive manufacturing method have emerged when high heat transfer and low-pressure drop are required from PHEs under high temperature and pressure operating conditions. This has resulted ... -
Life cycle cost assessment for thermal insulation of above-ground spherical container with different capacities in hot fluid storage processes
Karaca Dolgun, Gülşah; Keçebaş, Ali; Ertürk, Mustafa; Daşdemir, Ali (Elsevier Ltd, 2023)Due to environmental and economic reasons, thermal energy saving has gained more importance especially in industry. This study is concerned with the application of insulation to improve thermal energy storage in spherical ... -
Optimal insulation of underground spherical tanks for seasonal thermal energy storage applications
Karaca Dolgun, Gülşah; Keçebaş, Ali; Ertürk, Mustafa; Daşdemir, Ali (ELSEVIER, 2023)The literature deals specifically with compressed gas characteristics, solar radiation, storage volume and heat load fluctuation in aboveground storage and thermal energy storage (TES) applications. To prevent their negative ... -
Optimization of thermodynamic performance with simulated annealing algorithm: A geothermal power plant
Çetin, Gürcan; Keçebaş, Ali (Elsevier Ltd, 2021)Binary geothermal power plants (GPP) always attract researchers’ attention as they are renewable-energy operated, low-temperature, high-performance, environmentally-friendly, and baseload power plants. In addition, they ... -
Performance analysis of a textile based solar assisted air source heat pump with the energy and exergy methodology
Ural, Tolga; Karaca Dolgun, Gülşah; Güler, Onur Vahip; Keçebaş, Ali (Elsevier Ltd, 2021)Solar air collectors are integrated into the air source heat pump in order to increase the performance of the heat pump in cold climate regions. The evaporator air is heated by solar air collectors. In this study, two ... -
Performance evaluation of novel photovoltaic and Stirling assisted hybrid micro combined heat and power system
İncili, Veysel; Karaca Dolgun, Gülşah; Georgiev, Aleksandar; Keçebaş, Ali; Çetin, Numan Sabit (PERGAMON-ELSEVIER SCIENCE LTD, 2022)Since both heat and electricity are produced in the cogeneration system, residential heating can be done independently from the grid. Stirling engine is proposed to use for rural areas where electricity cannot reach. It ... -
Prediction of the effect of insulation thickness and emission on heating energy requirements of cities in the future
Ertürk, Mustafa; Keçebaş, Ali (Elsevier Ltd, 2021)This study predicts the effect of insulation thickness on residential- and population-sourced energy demands and emission amounts in the future with a new method. Attempts are made to determine the future population increase ...