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KILIÇ, OSMAN

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Author: DURSUN, ERKAN × Has files: false ×

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    Modeling of hydrogen production with a stand-alone renewable hybrid power system
    (PERGAMON-ELSEVIER SCIENCE LTD, 2012) DURSUN, ERKAN; Dursun, Erkan; Acarkan, Bora; Kilic, Osman
    Hydrocarbon resources adequately meet today's energy demands. Due to the environmental impacts, renewable energy sources are high in the agenda. As an energy carrier, hydrogen is considered one of the most promising fuels for its high energy density as compared to hydrocarbon fuels. Therefore, hydrogen has a significant and future use as a sustainable energy system. Conventional methods of hydrogen extraction require heat or electrical energy. The main source of hydrogen is water, but hydrogen extraction from water requires electrical energy. Electricity produced from renewable energy sources has a potential for hydrogen production systems. In this study, an electrolyzer using the electrical energy from the renewable energy system is used to describe a model, which is based on fundamental thermodynamics and empirical electrochemical relationships. In this study, hydrogen production capacity of a stand-alone renewable hybrid power system is evaluated. Results of the proposed model are calculated and compared with experimental data. The MATLAB/Simscape (R) model is applied to a stand-alone photovoltaic-wind power system sited in Istanbul, Turkey. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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    A mobile renewable house using PV/wind/fuel cell hybrid power system
    (PERGAMON-ELSEVIER SCIENCE LTD, 2011) DURSUN, ERKAN; Eroglu, Mehmed; Dursun, Erkan; Seuencan, Suat; Song, Junseok; Yazici, Suha; Kilic, Osman
    A photovoltaic/wind/fuel cell hybrid power system for stand-alone applications is proposed and demonstrated with a mobile house. This concept shows that different renewable sources can be used simultaneously to power off-grid applications. The presented mobile house can produce sufficient power to cover the peak load. Photovoltaic and wind energy are used as primary sources and a fuel cell as backup power for the system. The power budgeting of the system is designed based on the local data of solar radiation and wind availability. Further research will focus on the development of the data acquisition system and the implementation of automatic controls for power management. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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    Comparative evaluation of different power management strategies of a stand-alone PV/Wind/PEMFC hybrid power system
    (ELSEVIER SCI LTD, 2012) DURSUN, ERKAN; Dursun, Erkan; Kilic, Osman
    This study presents different power management strategies of a stand-alone hybrid power system. The system consists of three power generation systems, photovoltaic (PV) panels, a wind turbine and a proton exchange membrane fuel cell (PEMFC). PV and wind turbine is the main supply for the system, and the fuel cell performs as a backup power source. Therefore, continuous energy supply needs energy storing devices. In this proposed hybrid system, gel batteries are used. The state of charge (SOC), charge-discharge currents are affecting the battery energy efficiency. In this study, the battery energy efficiency is evaluated with three different power management strategies. The control algorithm is using Matlab-Simulink (R). (C) 2011 Elsevier Ltd. All rights reserved.