Scopus İndeksli Yayınlar Koleksiyonu

Permanent URI for this collectionhttps://gcris.yasar.edu.tr/handle/123456789/11290

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Citation - WoS: 17
Citation - Scopus: 19
A Novel Procedure for the AHP Method for the Site Selection of Solar PV Farms
(Wiley-Hindawi, 2024) Abdullah Demir; A. Ersin Dinçer; Kutay Yılmaz; Yilmaz, Kutay; Demir, Abdullah; Dincer, A. Ersin
This study proposes a novel approach to enhance the analytic hierarchy process (AHP) for the selection of suitable sites for solar photovoltaic (PV) farms. This approach is particularly beneficial when it is possible to establish a predefined objective relation in the final weights of the AHP method. The methodology focuses on achieving this predefined relation introducing a systematic revision of the constants of related constraints. In this study the costs of constructing a unit transmission line and road in the Kayseri Province are objectively related and the initial constant matrix of the AHP method is iteratively revised until the relation of the final weights converges to the predefined one. The suitability of solar PV farm locations is classified into five classes revealing approximately 28% (40-100% of suitability) of the province as favorably suitable and designating about 67% as restricted zones. The findings reveal notable distinctions between the revised weights and those derived from the conventional AHP method. The disparity in weights for various constraints varies from 13.5% to 7.2%. Consequently the alterations in the area of suitability regions range from 3.4% to 50%. The revision of AHP weights results in a reduction in higher-suitability areas coupled with a significant expansion in the region exhibiting lower suitability. Notably the extent of change in the suitability map increases when the difference in ratios between two criteria obtained from the AHP and the predefined objective relation is high. The proposed method demonstrates its applicability in regions like Kayseri where an objective relation between criteria can be established. Given the inherent subjectivity of the AHP method the proposed procedure becomes essential to attain more objective weights. Since the methodology objectively adjusts weights based on known ratios it increases the accuracy and reliability of site selection studies. © 2024 Elsevier B.V. All rights reserved.
A sustainable decision-making framework to evaluate land and seaside disposal options for tunnel spoil: A case study of Trabzon
(Science Press, 2025) A. Ersin Dinçer; Abdullah Demir; Şevki Ozturk; Kutay Yılmaz
Sustainable urbanization is essential for developing cities. To ensure the success of planned construction projects designers must prioritize sustainability by lowering emissions and reducing costs. Tunnel projects are common worldwide but disposing of the excavated material presents a significant challenge due to unsuitable geographic conditions. While coastal cities with mountainous terrains have historically used spoil for sea filling this study offers alternative landside options to promote sustainability. By using a conventional analytical hierarchy process (AHP) method for multi-criteria decision-making (MCDM) the study evaluates land use sustainability slope and drainage lines as constraints for the AHP method. The transportation-related greenhouse gas (GHG) emissions are also considered to reduce environmental damage. Particle swarm optimization is used to determine the minimum transportation distance from the excavation zone to the dumpsite. As a sub-criteria of land use the seaside is also considered a dumpsite compared with other options on the land side. The spatial analysis results of the case study show that suitable landside sites are available for the Trabzon tunneling project. Although coastal areas in Trabzon have been used for spoil dumping for filling purposes in the past landside deposition is a viable alternative. The suitability ranks of land and coastal filling options are relatively similar and selecting the seaside as the dumpsite for the Trabzon tunneling project reduces CO2 emissions. By adopting sustainable practices we can realize a better future for our cities and the environment. © 2025 Elsevier B.V. All rights reserved.
Citation - WoS: 18
Citation - Scopus: 20
Effect of urbanization on surface runoff and performance of green roofs and permeable pavement for mitigating urban floods
(Springer Science and Business Media B.V., 2024) Şevki Ozturk; Kutay Yılmaz; A. Ersin Dinçer; Volkan Kalpakcı; Yilmaz, Kutay; Dincer, A. Ersin; Ozturk, Sevki; Kalpakci, Volkan
Floods are increasingly becoming a significant concern due to climate change global warming and excessive urbanization. The Intergovernmental Panel on Climate Change (IPCC) has projected that global warming will continue to contribute to more frequent and severe floods and hydrological extremes. In response to these challenges nature-based solutions (NBSs) have gained recognition as effective approaches to mitigate the adverse impacts of floods by focusing on ecosystem conservation restoration and sustainable utilization of natural resources. This study examines a flood that occurred in the Erkilet District of Kayseri Türkiye on September 22 2022 as a result of intense rainfall. It involves a thorough on-site investigation to assess the hydraulic hydrologic and geotechnical attributes of the study area. The findings from the field study indicate that the primary cause of the flood is attributed to excessive urbanization. To further analyze the impact of urbanization a hydraulic model is developed considering both the physical and topographical conditions of the study area for both the year 2006 and 2022. The simulation results reveal that the extent of inundation area and water depth has increased significantly due to the excessive urbanization that occurred within a 16-year period. Additionally the effectiveness of green roofs and permeable pavements as NBSs to mitigate urban flooding is explored. The implementation of green roofs and permeable pavements shows promising results reducing the adverse effects of urban floods by 3% to 8% depending on their specific locations and configurations. However the results suggest that NBSs alone cannot fully prevent floods so they should complement gray infrastructure. The novelty of the study lies in its ability to demonstrate the impact of urbanization and the effectiveness of nature-based solutions in mitigating flood extent based. © 2024 Elsevier B.V. All rights reserved.
Enhanced Objectivity of AHP for More Reliable Solar Farm Site Selection
(John Wiley and Sons Ltd, 2025) A. Ersin Dinçer; Abdullah Demir; Kutay Yılmaz
The analytic hierarchy process (AHP) is a popular decision-making method for reliable decisions in different areas of study. Although the conventional AHP method mathematically ensures the consistency of results the reliability of these results depends on the expert manifests. While AHP was originally proposed for subjectively relatable criteria there may also be additional objectively relatable criteria or a consensus about the final relation of some couple of criteria. To address these objective relations and/or consensuses this study proposes the analytic hierarchy process with optimized hierarchy (AHP-OH). This method enhances the reliability of results by satisfying objective relations and/or consensuses about relations between criteria. The AHP-OH methodology was applied to select optimal photovoltaic (PV) farm locations in Konya Province Turkey a region characterized by diverse terrain and solar radiation levels. The study incorporated geographic information systems to analyze criteria such as solar radiation rate land use slope proximity to roads and transmission lines and restricted areas. Results demonstrated that 2.56% of Konya's terrain is highly (80%–100%) suitable and 19.34% of it has moderately high (60%–80%) suitability for PV farm development with five highly suitable regions identified. Notably the locations of existing PV farms aligned closely with the identified suitable zones validating the efficacy of the AHP-OH approach. This research underscores the importance of objectivity of decision-making methods and proposes AHP-OH to enhance the objectivity of the conventional AHP method. By providing a systematic and objective framework for spatial decision support systems AHP-OH offers significant advancements for policymakers and developers in the renewable energy sector. Future applications of this methodology can extend to other regions and renewable energy sources contributing to global efforts in sustainable energy development. © 2025 Elsevier B.V. All rights reserved.
Citation - WoS: 18
Citation - Scopus: 20
Multi-objective turbine allocation on a wind farm site
(Elsevier Ltd, 2024) A. Ersin Dinçer; Abdullah Demir; Kutay Yılmaz; Yılmaz, K.; Demir, A.; Dinçer, A.E.
The Multi-Objective Turbine Allocation (MOTA) method is introduced as a novel approach for wind farm layout optimization and site selection. By incorporating Geographic Information System (GIS) tools and the Analytical Hierarchy Process (AHP) the MOTA method offers a comprehensive solution to balance energy production cost factors and environmental impacts. In this study the MOTA method is applied to Gökçeada Türkiye for wind farm development. Results show that the MOTA method effectively proposes the optimum wind farm layout by selecting the best site for each turbine. The sequential turbine allocation approach integration of multiple objectives and use of GIS tools and AHP are the key capabilities and novelties of the MOTA method. The method allows for flexible investment decisions considering technical and economic aspects. The outcomes from the Gökçeada case study highlight the effectiveness of the MOTA method in maximizing energy production while considering cost factors and environmental impacts. The results indicate that for the selected objective functions the optimal net profit is attained with the installation of 155 turbines on Gökçeada. The MOTA method presents a practical and efficient solution for wind farm development contributing to sustainable and efficient renewable energy generation. © 2024 Elsevier B.V. All rights reserved.
Wind farm site selection using GIS-based multicriteria analysis with Life cycle assessment integration
(Springer Science and Business Media Deutschland GmbH, 2024) Abdullah Demir; A. Ersin Dinçer; Cihan Çiftçi; Sedat Gulcimen; Niǧmet Uzal; Kutay Yılmaz
The sustainability of wind power plants depends on the selection of suitable installation locations which should consider not only economic and technical factors including manufacturing and raw materials but also issues pertaining to the environment. In the present study a novel methodology is proposed to determine the suitable locations for wind turbine farms by analyzing from the environmental perspective. In the methodology the life cycle assessment (LCA) of wind turbines is incorporated into the decision process. The criteria are ranked using analytical hierarchy process (AHP). The study area is chosen as the western region of Türkiye. The obtained suitability map reveals that wind speed is not the sole criterion for selecting a site for wind turbine farms, other factors such as bird migration paths distance from urban areas and land use are also crucial. The results also reveal that constructing wind power plants in the vicinity of İzmir Çanakkale Istanbul and Balıkesir in Türkiye can lead to a reduction in emissions. İzmir and its surrounding area show the best environmental performance with the lowest CO2 per kilowatt-hour (7.14 g CO2 eq/kWh) to install a wind turbine due to its proximity to the harbor and steel factory across the study area. Çanakkale and the northwest region of Türkiye despite having high wind speeds are less environmentally favorable than İzmir Balıkesir and Istanbul. The findings of LCA reveal that the nacelle and rotor components of the wind turbine contribute significantly (43–97%) to the environmental impact categories studied while the tower component (0–36%) also has an impact. © 2024 Elsevier B.V. All rights reserved.

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