WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7150

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  • Article
    Citation - Scopus: 1
    Transforming Crete's Sustainable Energy Landscape: a Modular Energy Island Approach
    (Wiley, 2025) Mendez-Morales, Mariela; Karipoglu, Fatih; Ivankovic, Marin; Lukic, Tamara; Rebelo, Carlos
    The present paper investigates the conceptual design of a floating offshore renewable energy system-an energy island-developed to provide a sustainable long-term solution to support and expedite the transition toward renewable energy sources (RESs) as a case study in Crete Island, Greece. The optimal site selection in Crete's coastal waters was detected by carefully evaluating the potential for wind, solar, and wave energy alongside environmental and social considerations. Later, the current electricity demand was analyzed, leading to the identification of suitable technologies for renewable energy harvesting and the conceptualization of a floating structure. The findings of this research emphasize the viability of integrating diverse energy sources as a pivotal step for Crete Island to advance toward energy independence and environmental sustainability. Crete's abundant wind and solar resources underscore its capacity to host innovative projects, warranting further exploration into energy surplus storage and export.
  • Conference Object
    Renewable Energy Powered Artificial Mixing of the Reservoirs
    (IAHR-Int Assoc Hydro-Environment Engineering Research, 2023) Hazar, Oguz; Elci, Sebnem
    Reservoirs are essential and critical infrastructures and require proper management practices to improve water quality. Thermal stratification observed in the reservoirs impairs the water quality affecting the algae population and the solubility of heavy metals from sediment particles. Artificial mixing methods are widely used to improve water quality in thermally stratified eutrophic lakes and reservoirs. Air diffuser systems, water pumps, and water jets are commonly applied for aeration and mixing purposes. Although these methods proved to be effective in the literature, aeration and pumping equipment consume a great amount of electricity and require complementary infrastructures and facilities resulting in high costs. The presented study focuses on aeration of the water column powered by renewable energy. A Savonius turbine is implemented to an artificial mixing setup tested in the laboratory. The shaft of the turbine is directly connected to the pump so that the motion is transferred to the pump shaft eliminating the need for the production/storage of the electricity. The effectiveness of the wind turbine on destratification of the water column is investigated based on various wind conditions. In the experiments, static and dynamic torque values are monitored using a modified design of a rope brake dynamometer composed of a highly precise torque sensor, pulleys, and, a platform for connecting this torque measurement system to the wind turbine. The system is further evaluated for its destratification efficiency of the water column through the experiments.