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Van de Putte, Valentine (author)This thesis project has set out to investigate the response in fore-aft direction of a monopile wind foundation supporting an NREL 5MW turbine, offshore the coast of Taiwan, which is affected by weak to strong earthquake ground motion in combination with normal sea state conditions. The soil at the location of the monopile is layered, with sand...master thesis 2018
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Nuus, Nynke (author)When sea or lake ice interacts with concrete offshore structures in Arctic regions, the frictional forces between the ice and the structure cause abrasion of the concrete surface of the structure. This may endanger the structural integrity when the steel reinforcement gets exposed and experiences corrosion, and must therefore be taken into...master thesis 2018
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Maliepaard, Mans (author)The offshore wind market experiences large growth over the last decade. There is a clear trend to installation in deeper waters and to larger wind turbines, to maximize the energy output. The majority of offshore windmills use a monopile foundation, which due to the current trends are getting larger. Seaway Heavy Lifting (SHL) is a company that...master thesis 2018
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Wevers, Toon (author)In this research the hydrodynamic stability of a ballast filled mattress under waves is investigated. There is checked if this can be applied as scour protection around a suction bucket jacket: an offshore wind turbine foundation that uses a vacuum to suck itself in position. A ballast filled mattress is a mattress made from polyester with so...master thesis 2018
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Scheltes, Martijn (author)In the 25 years of existence, the offshore wind market has developed on many aspects. Among others, the dimension of the turbines increased by a factor 15 and the distance to shore increased by a factor of 50. The developments of the offshore wind farms increase the requirements for the installation vessels and as a consequence the present day...master thesis 2018
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van der Beek, Tom (author)The offshore wind industry is rapidly growing, and so is the competition in this market. Normally, offshore installation companies receive a subsidy for building offshore wind farms, but due to multiple companies bidding to install for lower and lower subsidies, the point where wind farms are installed without subsidy has been reached. Therefore...master thesis 2018
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Haaker, Joeri (author)With the shift towards a more sustainable energy society, the increase in the electricity produced by renewable energy sources is steadily rising. However the cost of renewable energy sources still remains high compared to the traditional fossil fuel based energy sources. With the total worldwide energy demand also rising, combining renewable...master thesis 2018
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Arntz, Ben (author)To meet the demand for renewable energy sources, large numbers of offshore windfarms are planned to be constructed in the near future. The majority of the foundations for these offshore wind turbines are large-diameter monopiles. The driving of monopiles into the seabed is conventionally done using a hydraulic hammer, this process is commonly...master thesis 2018
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Walgaard, Bart (author)Motion compensation for personnel transfer has greatly reduced costs and increased accessibility for offshore assets operation and maintenance. Solutions exist using hexapods or gangways that make a stiff connection by clamping to a customized offshore structure. State of the art gangways allow for a stepless workflow and have a rubber tip which...master thesis 2017
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Sarig, Alon (author)The Dutch west Caribbean company is a modest proposal. The company was created as an architectural response to an ongoing geopolitical and geoeconomic process (the development of the offshore economy). A process, whereby not only unusual goods such as artworks, battles of wine and stolen antiquities (that were in times past, part of the...master thesis 2017
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Boumzaouad, Mohamed (author)During offshore installations in harsh sea conditions, the involved gangway system must satisfy rigorous requirements in terms of safety and accuracy. The forces resulting from the vessel motion have an extensive effect on the overall gangway structure and its lifetime. Moreover, vessel motion handicaps the operator during fine positioning of...master thesis 2017
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de Vilder, Lucas (author)To combat global warming a transition towards renewable energy sources (RES) is essential. Although RES have much lower life-cycle emissions, they do not offer a continuous and fully predictable output like their fossil-fuelled counterparts. Energy storage is paramount in order to include the growing share of these intermittent sources into the...master thesis 2017
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Mendoza Espinosa, Jorge (author)Jacket support structures are a preferred solution for offshore wind turbines in deeper waters. Extensive knowledge exists in relation to its construction technique as well as its crucial components, but due to considerable cost pressure, continued optimization is essential for the future competitiveness of the concept in the offshore wind...master thesis 2017
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Fuentes Casillas, Jorge (author)One of the most important aspects to consider when a PV system will be mounted, is the PV panel’s orientation in order to receive the highest amount of solar radiation and thus produce as much energy as possible. This is achieved by tilting the solar panel to an optimal angle (which depends of the location’s latitude) or by tracking systems...master thesis 2017
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Dominguez Ollero, Rocio (author)The oil and gas industry is seeking to improve safety on its current operations procedures (Choudarki, 2012). From all oil and gas operations, Topside Installation Processes (TIP) are the only offshore activity that counters one of the golden safety rules, “do not stand or walk under suspended loads” (Peuscher & Groeneweg, 2012). As a...master thesis 2017
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Thuijs, Jeroen (author)With a changing market for offshore crew transfer systems the current Ampelmann systems are vulnerable for competitors. One of the downsides of the current system is its influence on the ship due to the system mass. A lightweight re-design of the current steel gangway using composites could start an overall weight decrease. A composite gangway...master thesis 2017
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Boersma, Paul (author)During operations on offshore platforms, lifting of objects (i.e. containers) brings with it dropped object risks. In the occurrence of a dropped object event, production is temporarily interrupted, resulting in unintended costs. Chicago Bridge & Iron Company (CB&I), a leading engineering company in the design of offshore topside...master thesis 2017
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- Kool, F.W. (author) master thesis 2016
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Louis, O. (author)A significant reduction in the levelized cost of electricity is necessary for offshore wind farms to become a competitive energy source. Amongst other methods, overall project cost reduction can be achieved by optimized support structure design. An upcoming trend is the use of `XL monopiles', which provide a cost effective foundation solution...master thesis 2015
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De Groote, P.F.N. (author)The purpose of this thesis is to estimate the required forces for a hydraulic decommissioning cutting tool. The reason for this thesis topic is because of clear regulations and demand according offshore decommissioning. Abandoned offshore structures require to be decommissioned after their lifespan. The low oil prices these days and the pressure...master thesis 2015