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Ripepi, D. (author)In the last century, the indiscriminate use of fossil energy to power the industrial revolution and technological progress of humankind, has led to the depletion of limited natural resources and, most importantly, the emission and accumulation of alarming levels of pollutants and greenhouse gases (GHG) in the atmosphere. One of the major...doctoral thesis 2023
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Moultos, O. (author), Tsimpanogiannis, Ioannis N. (author)Available data from experiments and molecular simulations for the intra-diffusivities of H (Formula presented.) and O (Formula presented.) in H (Formula presented.) O, and for the self-diffusivity of pure H (Formula presented.) O (at pressure and temperature conditions in which the solvent is in the vapour phase) are compared against...journal article 2023
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Middelkoop, Sanne (author)This paper describes a real-time energy management system developed for a solar park in the Netherlands using an alkaline electrolyser. The optimization problem is split into a two-step optimization, taking into account the specifications of the electrolyser and allowing the electrolyser to respond to changes in the imbalance market. The first...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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Mertens, Emily (author)Global warming is a topic of major concern the last decade and for reason the IMO adopted a strategy to reduce the emissions of greenhouse gasses of vessels. In order to meet the IMO requirements ships propulsion systems need to become more sustainable. An option to reduce emission is the implementation of fuel cells running on hydrogen together...master thesis 2022
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Juncker, Jesse (author)The maritime sector plays an important role in energy transition because offshore vessels are used for building offshore renewables but also have high emissions. The European Union (EU) has determined that from 2025 the maritime sector must pay per ton of CO2 emission. Heerema Marine Contractors (HMC) is an essential player in the maritime...master thesis 2022
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Grolleman, Sven (author)At the moment, Tata Steel emits 12.6 Mt CO2 per year while producing 7.2 Mt steel per year. To reduce these emissions, Tata Steel has decided to replace the blast furnaces with direct reduced iron (DRI) plants in combination with reducing electrical furnaces. The DRI plants will first operate with a 100% natural gas feed. Whenever green hydrogen...master thesis 2022
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Iakovou, Iakovos (author)New vessels need to remain fuel flexible in order to handle the uncertainties of the future regarding the available alternative fuels aiming to lower their environmental impact. On the other hand, it is even more challenging for existing vessels that are not fuel flexible to successfully improve their carbon impact. The current study examines...master thesis 2022
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Raju, Darshan (author)The energy transition from fossil fuels to renewable energy sources is crucial for climate resilience. In particular, hydrogen combustion in gas turbine combustors is expected to play an essential role in the energy transition. Hence, a fuel-flexible gas turbine combustor operating with a wide range of natural gas and hydrogen fuels is necessary...master thesis 2022
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BACHRAS, SERAFEIM (author)Hydrogen is expected to be a significant force in this transition. Hydrogen can be produced using technologies that do not emit CO2 or other greenhouse gasses (“green H2”). Hydrogen can be transported in big quantities and long distances unlike electricity and can play the role of a clean fuel. The emerging hydrogen economy, which will be...master thesis 2022
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Suy, Xander (author)Urgent action is needed to decrease maritime emissions. The renewable wind energy sector must also decrease its life cycle greenhouse gas (GHG) emissions. Total GHG emissions from offshore wind turbines are approximately 120% more compared to onshore wind turbines. Moreover, it is estimated that Walk to Work (W2W) vessels are responsible for 3.3...master thesis 2022
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de Vries, Volkmar (author)Shipping is, and will continue to be, the most important transportation method around the globe. A vital part of the logistic chain, it is also one of the main contributors to the worldwide CO2 emissions. Current propulsion technologies all rely on the same classic diesel driven technology, as diesel is widely available and has a high energy...master thesis 2022
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van der Goes, Barrie (author)The Hydrogen Heating Studies project in the Green Village at the TU Delft researches the safe application of hydrogen to heat buildings. This study aims to evaluate hydrogen sensor technologies for residential safety, including the determination of the sensor location inside a standard (Dutch) metering cabinet that achieves the fastest response...master thesis 2022
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Hermans, Ewoud (author)In order to reach the climate goals the use of fossil fuels needs to decrease and green solution need to provide the energy of the future. Wind and solar will probably supply a large fraction of our electrical power need in the future. Because of the nature of these sources the demand for electrical power will not always be balanced with the...master thesis 2022
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Boons, Bart (author)To anticipate for future demand of sustainable liquid fuels, Zero Emission Fuels B.V. develops a solar powered micro plant which produces methanol from water and carbon dioxide captured from outside air. An intermediate step in this process is the electrolysis of water to create hydrogen which reacts with carbon dioxide to methanol. This study...master thesis 2022
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Kuiper, Joël (author)Hydrogen offers opportunities to develop a sustainable energy system and is essential to support the EU’s commitment to reaching carbon neutrality by 2050. Hydrogen is a solution for heavy transport sectors that struggle to reduce emissions by direct electrification, such as the Dutch inland waterway transport (IWT) sector. However, the lack of...master thesis 2022
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Scalability analysis of radical technologies to various aircraft class: Part 2: Sensitivity AnalysisBonnin, V.O. (author), Hoogreef, M.F.M. (author)This study aims at providing a landscape of opportunities and limitations for hybrid-electric aircraft (HEA) and hydrogen-powered aircraft by investigating several technological combinations applied to three aircraft classes: Regional (REG), Short-Medium Range (SMR) and Large Passenger Aircraft (LPA). The preliminary sizing of HEA using...conference paper 2022
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Farajzadeh, R. (author), Lomans, Bartholomeus Petrus (author), Hajibeygi, H. (author), Bruining, J. (author)This paper presents an assessment of the life-cycle exergetic efficiency and CO2 footprint of the underground biomethanation process. The subsurface formation, hosting microorganisms required for the reaction, is utilized to convert CO2 and green (produced from renewable energy) hydrogen to the so-called "green"or synthetic methane. The net...journal article 2022
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Kos, Johan (author), Posada Duque, J.A. (author), Peerlings, Bram (author), ben Salah, Nora (author), Lim, Nanette (author), Lammen, Wim (author), Stepchuk, I. (author), van der Sman, Elisabeth (author), Palmeros Parada, M.D.M. (author)This paper investigates green hydrogen and bio-based sustainable aviation fuels, including their production technology and feedstock, in combination with Clean Sky 2 propulsion technologies and novel hydrogen-powered propulsion technologies. The impact that these alternative aviation fuels and propulsion technologies can have on greenhouse...conference paper 2022
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Oudejans, Daphne (author), Offidani, M. (author), Constantinou, Achilleas (author), Albonetti, Stefania (author), Dimitratos, Nikolaos (author), Bansode, Atul (author)The interest in and need for carbon-free fuels that do not rely on fossil fuels are constantly growing from both environmental and energetic perspectives. Green hydrogen production is at the core of the transition away from conventional fuels. Along with popularly investigated pathways for hydrogen production, thermochemical water splitting...review 2022