Yazar "0000-0003-4809-2461" için Araştırma Çıktıları | TR-Dizin | WoS | Scopus | PubMed listeleme
-
Life Cycle Assessment and Cumulative Energy Demand Analyses of a Photovoltaic/Thermal System with MWCNT/Water and GNP/Water Nanofluids
Karaca Dolgun, Gülşah; Koşan, Meltem; Kayfeci, Muhammet; Georgiev, Aleksandar G.; Keçebaş, Ali (MDPI, 2023)The global climate crisis has led society toward cleaner energy sources. Another reason is the limited reserves of fossil energy resources. Efforts to increase the efficiency of photovoltaic modules (PVs) have gained ... -
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 ... -
Modeling and Assessment of the Thermo-Hydraulic Performance for a Fish Gill Patterned Plate Heat Exchanger in Biomimetic Approach
Gürel, Barış; Keçebaş, Ali; Akkaya, Volkan Ramazan; Göltaş, Merve; Güler, Onur Vahip; Kurtuluş, Karani (Taylor and Francis Ltd., 2022)Increasing the surface area of the plate heat exchangers (PHEs) has recently been one of the focuses of the industry. Improved surface shapes provide greater heat transfer and also become an important key point in energy ... -
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 Assessment of a Novel Solar and Biomass-Based Multi-Generation System Equipped with Nanofluid-Based Compound Parabolic Collectors
İbrahim, Alla Ali; Kayfeci, Muhammet; Georgiev, Aleksandar G.; Karaca Dolgun, Gülşah; Keçebaş, Ali (MDPI, 2022)The current paper proposes a novel multi-generation system, integrated with compound parabolic collectors and a biomass combustor. In addition to analyzing the comprehensive system in a steady state, the feasibility of ... -
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 ... -
Thermo-hydraulic efficiency of lung-inspired compact plate heat exchangers made using additive manufacturing techniques with steel, aluminum and titanium powders
Güler, Onur Vahip; Gürel, Barış; Aryanfar, Yashar; Castellanos, Humberto Garcia; Göltaş, Merve; Keçebaş, Ali; Akkaya, Volkan Ramazan (Elsevier Ltd, 2024)The selection of material for compact plate heat exchangers (CPHEs) is of increasing importance due to global economic and supply constraints. Additionally, the influence of material selection on the thermo-hydraulic ... -
Thermo-hydraulic performance improvement with nanofluids of a fish-gill-inspired plate heat exchanger
Göltaş, merve; Gürel, Barış; Keçebaş, Ali; Akkaya, Volkan Ramazan; Güler, Onur Vahip; Kurtuluş, Karani; Yağız Gürbüz, Emine (PERGAMON, 2022)The plate heat exchanger (PHE) is an important component for parameters such as size, weight, high temperature and high pressure in many nanotechnological applications. Improving the thermo-hydraulic performance of PHEs ... -
Thermodynamic evaluation of a geothermal power plant for advanced exergy analysis
Keçebaş, Ali; Gökgedik, Harun (Pergamon-Elsevier Science Ltd, 2015)As a result of decreasing fossil fuel resources and their adverse impacts on the environment, interest in renewable energy resources, particularly geothermal energy, has been revived. Finding approaches that are more ... -
Thermodynamic performance evaluation of a heat pump system with textile based solar air heater for heating process
Ural, Tolga; Keçebaş, Ali; Güler, Onur Vahip (Elsevier Ltd, 2021)In this study, a newly system is designed and tested which integrates air-to-water heat pump and solar air collector having fabric absorber for the shortcoming of frost depositing on the evaporator in heating condition. ...