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Hoogerdijk, Tom (author)Hydrogen is seen as a potential energy carrier for the next generation of aircraft that will be more climate-friendly than the previous generation of kerosene-powered aircraft. Two types of hydrogen-based propulsion systems are currently foreseen for such aircraft: hydrogen combustion and hydrogen fuel cell. In addition to producing useful...master thesis 2023
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Scoccimarro, Antonio (author)Hydrogen fuel cells are set to play an important role in decarbonizing the aviation sector. They operate at higher efficiencies than turbine engines, but their low operating temperature requires a dedicated thermal management system. The added drag, weight and parasitic power of such a system has a high impact on aircraft performance and its...master thesis 2023
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Zupanič, Miha (author)This research project investigated the potential benefits of using hybrid hydrogen fuel-cell powertrains in commuter aircraft certified under the EASA CS-23 category to reduce the aviation industry's environmental impact. The study used an in-house aircraft design synthesis software to model conventional and fuel cell aircraft, including a...master thesis 2023
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Hirs Alvarez, Aldo (author)Currently, the energy transition is a topic for discussion and many organizations are taking measures to reduce the effects of climate change. Armed forces are exempt of these new regulations on the grounds of national security, but some have already started taking steps to reduce the amount of harmful emissions. Due to the high efficiency and...master thesis 2023
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van Veldhuizen, B.N. (author), van Biert, L. (author), Amladi, A. (author), Woudstra, T. (author), Visser, K. (author), Aravind, P.V. (author)An increasing demand in the marine industry to reduce emissions led to investigations into more efficient power conversion using fuels with sustainable production pathways. Solid Oxide Fuel Cells (SOFCs) are under consideration for long-range shipping, because of its high efficiency, low pollutant emissions, and fuel flexibility. SOFC systems...journal article 2023
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Bhadra, A. (author), Haverkort, J.W. (author)Microfluidic fuel cells, electrolyzers, and redox flow batteries utilize laminar flow channels to provide reactants, remove products and avoid their crossover. These devices often also employ porous flow-through electrodes as they offer a high surface area for the reaction and excellent mass transfer. The geometrical features of these...journal article 2023
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Kapetanović, M. (author), Nunez, Alfredo (author), van Oort, N. (author), Goverde, R.M.P. (author)Hydrogen fuel cell multiple unit vehicles are acquiring a central role in the transition process towards carbon neutral trains operation in non-electrified regional railway networks. In addition to their primary role as a transport mean, these vehicles offer significant potential for applications in innovative concepts such as smart grids....journal article 2023
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van Veldhuizen, B.N. (author), Zera, E. (author), van Biert, L. (author), Modena, S. (author), Visser, K. (author), Aravind, P.V. (author)Solid Oxide Fuel Cell (SOFC) systems have the potential to reduce emissions from seagoing vessels. However, it is unknown whether ship motions influence the system's operation. In this research, a 1.5 kW SOFC module is operated on an inclination platform that emulates ship motions, to evaluate the influence of static and dynamic inclinations...journal article 2023
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Li, L. (author), Lukszo, Z. (author), Schmitz, J.E.J. (author)Hydrogen is becoming increasingly popular as a clean, secure, and affordable energy source for the future. This study develops an approach for designing a PV–battery–electrolyzer–fuel cell energy system that utilizes hydrogen as a long-term storage medium and battery as a short-term storage medium. The system is designed to supply load demand...journal article 2023
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Kapetanović, M. (author), Nunez, Alfredo (author), van Oort, N. (author), Goverde, R.M.P. (author)Hydrogen fuel cell multiple unit vehicles are acquiring a central role in the transition process towards carbon neutral trains operation in non-electrified regional railway networks. In addition to their primary role as a transport mean, these vehicles offer significant potential for applications in innovative concepts such as smart grids....abstract 2023
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Li, Wenhuai (author), Li, Mengran (author), Guo, Y. (author), Hu, Zhiwei (author), Zhou, Chuan (author), Brand, Helen E.A. (author), Peterson, Vanessa K. (author), Pao, Chih Wen (author), Chen, Chien Te (author)Oxygen-ion conducting perovskite oxides are important functional materials for solid oxide fuel cells and oxygen-permeable membranes operating at high temperatures (>500 °C). Co-doped perovskites have recently shown their potential to boost oxygen-related kinetics, but challenges remain in understanding the underlying mechanisms. This...journal article 2023
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Das Sadiq, Kabir (author), Aravind, P.V. (author), Woudstra, T. (author), Jaiganesh, N. (author), Ajith kumar, R. (author)The performance of a 30-kW gasifier–SOFC–GT system was evaluated using thermodynamic calculations. Nickel/Gadolinia Doped Ceria (Ni/GDC) anodes were utilized for Solid Oxide Fuel Cells (SOFCs). These systems can achieve high electrical efficiencies of above 50%. The goal of the study is to evaluate trends in system efficiency when carbon...journal article 2023
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Abdelhakim, Ahmed (author), Soeiro, Thiago B. (author), Stecca, M. (author), Canales, Francisco (author)Compact and efficient power converter solutions are seen to be the backbone of future transportation systems in order to cope with the ongoing transition toward greener systems. Such systems usually comprise a main load section, in which one or more propulsion or traction motors are connected, in addition to an auxiliary load, which might...journal article 2023
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Garcia Gonzalez, Pedro (author)Solid Oxide Fuel Cell (SOFC) systems for aviation applications have been considered for their use as APUs or powertrains, as standalone systems or in combination with gas turbines, and both fueled by reformed Jet-A or by hydrogen. Most existing studies focus on powertrain performance modelling. In this work, traditional tube-and-wing regional...master thesis 2022
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Malhotra, Dhruv (author)The issue of climate change has fostered the innovation of new technology in an attempt to curb the rising emissions, with the energy sector being one of the biggest contributors of carbon emissions. Renewable Energy has shown promise in reducing the emissions by up to 32 %. However the problem of intermittency of<br/>renewable energy sources is...master thesis 2022
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de Boer, Pim (author)This work describes the benefits of exploiting cold hydrogen in a 2 MW liquid hydrogen-electric powertrain. Hydrogen is stored in a liquid state in the aircraft at its boiling point of 20 K (at 1 bar). Fuel cells require an input temperature of at least zero degrees Celsius to operate. The heating process can either be done by drawing current...master thesis 2022
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Zuidgeest, Sven (author)The current global fleet is still dependent on conventional fuels as energy source to transport goods to various places in the world. These conventional fuels, such as MGO or HFO, emit large amounts of greenhouse gasses and other pollutant emissions. Regulation concerning these emissions becomes stricter every day, therefore institutions and...master thesis 2022
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Karagiorgis, Savvas (author)A major transition became necessary for the maritime industry to meet the IMO’s targets for mitigating the carbon footprint of the sector by at least 50% by 2050. One of the promising methods to lower the emissions is the ship's hybridization. An enormous increase in pilot and demonstration projects for that purpose is being observed. This...master thesis 2022
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Sterk, Reinout (author)Due to more stringent greenhouse gas (GHG) emission regulations in the maritime industry, solutions are being sought to decrease the GHG emissions of crew transfer vessels used in offshore wind farms. Multiple alternative fuels and power generating systems can be used to decrease these emissions. In this research, a comparative study is...master thesis 2022
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Cinek, Yavuz (author)The energy transition is one of the major challenges of the 21st century, impacting the way energy is generated, conserved and consumed. Energy generation becomes more and more decentralised, intermittency and fluctuations suddenly are becoming topics of interest within day-to-day life and energy system operators are facing many new obstacles...master thesis 2022