Yazar "Arat, Hüseyin Turan" seçeneğine göre listele

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    Design, modelling and evaluation of a hybrid fuel cell military locomotive for ammunition/personnel deployment
    (Elsevier Ltd, 2024) Başar, Mustafa Tunahan; Baltacioğlu, Mustafa Kaan; Arat, Hüseyin Turan
    Hybrid electric and fuel cell propulsion systems have become increasingly prevalent in locomotive and rail applications over the last decade. In this simulation-based study, a hybrid locomotive (powered by a fuel cell and battery) was modeled and analyzed using the AVL Cruise M software for potential military applications. A scenario was designed where a hybrid fuel cell locomotive was utilized to transport military ammunition and personnel over a 607.4 km route between Istanbul and Ankara. Key battery parameters such as state of charge (SOC), energy, and power, as well as fuel cell parameters including energy output, efficiency, and hydrogen consumption, were simulated under specified conditions. The analysis revealed that the military locomotive powered by a hybrid fuel cell propulsion system achieved a hydrogen consumption rate of 8.02 kg per 100 km during the journey. Notably, significant variations in hydrogen consumption were observed in scenarios involving short distances with rapid accelerations compared to stable long distance road conditions. Furthermore, the study highlighted both the performance implications of the hybrid fuel cell locomotive and the strategic advantages of rail transportation in the military sector. © 2024 Hydrogen Energy Publications LLC
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    EFFECTS OF SOCIAL MEDIA PLATFORMS ABOUT ATTENDANCE TO WHEC 2022 CONFERENCE
    (International Association for Hydrogen Energy, IAHE, 2022) İskenderoğlu, Feride Cansu; Baltacıoğlu, Mustafa Kaan; Arat, Hüseyin Turan
    In recent years, it has become very important to examine the positive or negative factors affecting participation in Scientific Conferences and to determine the right strategies. In this study, it is aimed not only at academic research focusing on the motivating and hindering factors in the literature, but also to expand the existing academic knowledge in terms of social media platforms, together with the data obtained from the social media platforms of the WHEC2022 conference. In addition to new and established factors affecting conference attendance, an interactive management and organizational strategies are proposed. An increase of 3.2% was observed in the WHEC2022 conference participation with the social media strategy used. Research findings are important for conference administrators in addressing the higher-importance social media strategies that affect conference attendance and the factors that affect them. © 2022 Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2. All rights reserved.
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    Electric vehicles and future of transport sector
    (CRC Press, 2022) Arat, Hüseyin Turan; Baltacioglu, Mustafa Kaan; Conker, Caglar
    Humankind lives in this last century where their habits and technology requirements have rapidly changed and evolved. The increasing unbalanced population and energy necessity have pushed researchers and technology-oriented argument owners into searching for different and more efficient energy sources. It has also updated its direction with the "electricity" option in the change of transportation technologies, which is the main cause of depleting oil resources and increasing emissions. For the last 50 years, vehicles used in transportation sectors (land, air, marine) adapted themselves either to hybrid or pure electrical power systems. Especially in the last 20 years, with an increasing trend and social favorable, the values and effects of "electric vehicles" (EV) have increased positively and have taken their place in the sector. In this book section, among the topics that the authors promised their readers, the state of the art and short history of EV technology, reasons for its emergence and development, advantages and disadvantages, technologies that evolved in its development process, and preliminary information about supply-demand situations and costs are given. In more detail, EV types, components, structures, topologies, hybrid EVs; battery EVs; fuel cell EVs differences and comparisons; battery and material technologies; energy efficiency; charging and filling stations/capabilities; control strategies, and reachable market data issues were covered. The last chapter of this book section, where recent works are mentioned in detail, is devoted to ideas about the future predictions of EVs in technology, environmental, and sociological terms. Since it is believed to be much more sustainable than oil and its derivatives with limited resources of electrical energy obtained in different ways and "near limitless", EVs will continue to use both in terms of performance, efficiency, and supply-demand trends over the next decades. Besides, transportation vehicles (ships, planes) that need "huge power" with the further development of materials and battery technology will tend to be electrified. As a result; in the energy family, EVs will be talked about more in the next century and will be the main subject in engineering life in terms of many types of research and products. © 2023 selection and editorial matter, Muhammad Asif. All rights reserved.
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    ENERGY PERSPECTIVE AND ANALYSES OF SEAWATER ELECTROLYZER FOR SEA VEHICLE
    (International Association for Hydrogen Energy, IAHE, 2022) Sürer, Meryem Gizem; Arat, Hüseyin Turan
    In this study, a prototype marine vehicle is designed to produce hydrogen from sea water and convert it into electricity and use it as an auxiliary power in the main propulsion, and it is provided to look at this design from an energy perspective. In the designed marine vehicle, the main propulsion power was provided by a diesel generator. In this study, first of all, the requirements were determined, a conceptual design was made, and necessary evaluations were made from the energy perspective. In this study, high-weight hydrogen storage difficulties will be avoided by providing hydrogen production at any time, and costs will decrease in the long run. In addition, it will make great contributions to zero carbon dioxide studies. © 2022 Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2. All rights reserved.
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    Investigation of instantaneous temperature variations in hydrogen PEM fuel cell stack under cold climate conditions
    (Elsevier Ltd, 2024) Arat, Hüseyin Turan; Albayrak Çeper, Bilge
    In recent years, the producing energy through alternative ways, increasing its diversity, decarbonization and green deal's themes have been working hard by all stakeholders for the protection of our world and environment. When the manufacturing and powering an engineering application has utilized, it should be fulfilling the essential environmental and working conditions in accordance with its purpose. These conditions are among the newly studied topics for hydrogen and fuel cell applications, which have recently become popular in the energy sector. In this study, how a modeled PEM fuel cell is instantaneously affected at minus degrees (0, −5, −10,-11,-12,-13,-14,-15) is examined in “AVL Cruise M″ simulation platform. The momentary detailed evaluation under the extreme cold conditions for PEMFC has revealed the time-dependent changes of parameters such as energy, heat flow, voltage and wall temperature. Consequently, it has been observed that fuel cell temperatures, especially at −13, −14 and −15°; affect the total operation efficiency negatively and reduce the voltage value almost by 19%. Also, the future recommendations mentioned that how can be minimizing these negative effects. © 2024 Hydrogen Energy Publications LLC
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    WHAT IS THE KEY ROLE OF HYDROGEN ENERGY IN METAVERSE
    (International Association for Hydrogen Energy, IAHE, 2022) İskenderoğlu, Feride Cansu; Arat, Hüseyin Turan; Baltacıoğlu, Mustafa Kaan
    With the increase in digitalization, the demand for energy is increasing day by day. Web 3 version, IoT technologies, social media platforms, rapidly increasing online worlds with online games and the popularization of crypto technologies make people dependent on energy. One of the most important problems of crypto and metaverse technology is the insatiable use of electricity. The current research uses a PEM fuel cell system as a renewable energy source to meet the electricity demand required for crypto mining. The required amount of hydrogen and equipment for the fuel cell system are explained. © 2022 Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2. All rights reserved.