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den Tonkelaar, Bram (author)To keep the global warming of the Earth to a minimum, the greenhouse gas emissions need to be reduced. Van Oord aims to be carbon neutral by 2050; therefore, Van Oord is exploring alternative fuels. Ammonia is a promising option to use as a fuel due to the forty times lower well-to-wake emissions than MGO when it is produced with green energy....master thesis 2023
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van Pelt, Koen (author)<br/>master thesis 2023
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Dijkstra, Jesse (author)Cutter suction dredgers (CSD) are highly vulnerable to large wave loading due to their stiff, spud-based mooring. Many mitigations targeted at reducing the resulting stresses on the spud and other critical operating components have been proposed in recent years, most notably by adding a level of flexibility to the connection between the pontoon...master thesis 2023
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Ursem, Youri (author)To fulfil the ever-increasing need for wind energy, European offshore wind farm sites are selected in deeper waters with seabed conditions which can consist of hard consolidated sediments or even rock. The deeper sites require the use of floating wind turbine foundations that are moored off to anchor piles in the seabed. For rock seabed sites,...master thesis 2022
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Mes, Willemijn (author)Due to urbanization, improved living standards and electrification, approximately five times more raw minerals are necessary in 2050 compared to 2018. In deep oceans, the seafloor contains these minerals in the form of polymetallic nodules. Nodules are about the size of golf balls that grow throughout the ocean at depths between 3500 m and 6000...master thesis 2022
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- Roelofsen, Floris (author) master thesis 2022
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Hageman, Evelien (author)Over 5000 offshore wind turbine generators have been installed in the past decades. 80% of these wind turbines have a monopile foundation. Monopiles are hollow steel tubular piles with a diameter of up to 10m. The first phase of the monopile installation consists of the self-weight penetration into the seabed due to the mass of the monopile....master thesis 2022
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Doorn, Floris (author)In recent decades, a significant amount of the research into deep sea polymetallic nodule mining has been conducted on the collecting vehicle and the riser system accommodating transport from the seabed to the mining support vessel. <br/>The topside operation, however, is less commonly described in the literature. This part of the operation...master thesis 2022
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Wijmans, Yannick (author)Recently, deep-sea mining has acquired renewed interest from commercial companies due to a rise in the demand of minerals and metals. Deep-sea mining is focussed on different minerals and rare earth elements found in the oceans that are increasingly used in the manufacturing of goods and products related to renewable energy. In order to collect...master thesis 2021
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Huang, Ziyang (author)To meet energy demand towards a low-carbon future, the global market demand is growing for metals such as cobalt and nickel which are major elements in batteries. Polymetallic nodules, which are formed on abyssal plains at depths ranging from 4 to 6 kilometres and are distributed in high abundance on the top of the seabed, contains several times...master thesis 2021
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de Jong, bart (author)Growing populations, high-technology applications and the energy transition raise the demand for rare earth elements. As a secure supply in the future is all but certain, opportunities arise for deep-sea mining. Polymetallic nodules<br/>that are located on the vast, sediment-covered ocean floors, are one of the more promising deep-sea mineral...master thesis 2021
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Enthoven, dolf (author)Due to the increased demand for materials like cobalt and nickel, there is an interest to mine polymetallic nodules from the deep-sea. These nodules are abundantly distributed along the abyssal plains, e.g., the Clarion Clipperton Zone (CCZ) in the North East Pacific. These nodules lay spread on top of a seabed consisting of very fine clayey...master thesis 2021
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Broeren, Margo (author)Deep sea mining is an upcoming industry that comes with many unknowns. One of these uncertainties is the interaction between the deep sea mining collector and the seabed. Allseas collaborates with DeepGreen Metals to collect nodules in the Clarion Clipperton Zone (CCZ) in the Pacific Ocean. The CCZ seabed consists of a very soft cohesive soil....master thesis 2021
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Bedón Vásquez, Andrea (author)Turbidity currents are common in the waters around the world. They can be caused by earthquakes, collapsing slopes or other geological disturbances. However, turbidity currents can also be caused by deep sea mining activities. Deep sea mining is done with special mining vehicles. There are three main operations within this mining vehicle:...master thesis 2020
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Blankenaar, Britt (author)The rising demand for minerals and metals and the depletion of land-based resources has created a renewed interest in the extraction of resources from the deep ocean, i.g., deep sea mining. This research focuses on the mining of manganese nodules, these are potato-shaped objects, 5-10cm in size, composed of metals half buried in the seafloor. A...master thesis 2020
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Osejo Rodriguez, Jorge (author)Over recent years, there has been an increase in demands for rare and precious minerals worldwide. Mostly this is due to the rise of the world’s population and the drive towards a green energy transition and low carbon economy. Prices are rapidly increasing, and there is an identifiable risk of an increasing supply shortage of raw materials,...master thesis 2019
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Bekkers, Rick (author)In a world where the awareness of global warming and climate change increases, the shift towards sustainable energy is essential. In the upcoming years, an increasing number of offshore wind farms is expected. Over the past years, all the 'best spots' are taken and the new locations in tougher soil conditions or even rock have to be overcome....master thesis 2018
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Althuis, K.Y. (author)An underwater slope can collapse by liquefaction, wedge failure or breaching. Breaching is the most unknown process and has a low predictability. Dredge mining is strongly influenced by the breaching process. If breaching can be accurately predicted, the efficiency of the dredging production can be maximised.It is the objective to know what...master thesis 2016
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Peene, L.S. (author)This paper addresses the development and validation of a transient computational model describing the transport of drilled cuttings in vertical wellbores. The model can be used for evaluation of hole cleaning performance. The model accounts for the time-dependent effect of mud gelling (thixotropy). The model is validated with measurements from a...master thesis 2016