Searched for: contributor%3A%22Metrikine%252C%255C+A.%255C+%255C%2528mentor%255C%2529%22
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Milan, Giovanni (author)In the Groningen province, situated in the northern part of the Netherlands, a large natural gas field was discovered in 1959 and in 1964 the gas extraction started. Due to the gas extraction in the Groningen area, undesired induced earthquakes are generated. The strongest earthquake registered to date was in 2012, 3.6 of the Richter scale. Not...master thesis 2017
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Norbruis, Joris (author)A global focus on the shift to renewable energy has introduced international targets for sustainable energy production, which have strongly increased the interest in offshore wind turbines (OWT’s). In order to make offshore wind energy even more competitive, the levelised cost of energy for this industry has to be brought down. One of the OWT...master thesis 2017
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Knoppe, Kristel (author)Offshore assets experience wave forcings on a daily basis. Whilst the assets are designed with an airgap to protect the deck from these impacts, environments are prone to change, leaving the airgap to be insufficient. <br/><br/>Wave-in-deck (WID) is the phenomenon of waves hitting the deck despite of the airgap. The forcing exerted on the deck...master thesis 2017
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Graat, Stefan (author)With a rapidly growing population and subsequent technological developments, an increase in demand of rare-earth metals evolves. Land-based deposits seem to be insufficient and shortage impends within the coming decades. Mineral resources from the deep ocean are considered as a possible complement. These minerals occur in various forms. One of...master thesis 2017
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SOULIOTIS, MARINOS (author)In the race for cost reduction in the offshore wind industry, support structure optimization leading to weight reduction plays a prominent role. The fatigue limit state is often the driving consideration for support structure design. Monitoring the monopile loads can offer an accurate knowledge of its consumed and remaining fatigue lifetime,...master thesis 2017
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Ravndal, Bjarte (author)The Bristol Channel has one of the largest tidal ranges in the world, with a mean tide of nearly 10.5 m at Avonmouth, and speculations on how to harness this energy date back well over a century. One method is tidal range by the use of tidal lagoons, which operates on principles akin to hydropower. The lagoon is essentially an enclosed reservoir...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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Karras, Dimitris (author)When damage assessment is needed for an operating pipeline due to impact with an accidentally dropped object, DNV standards treat this case with conservatism and thus fail to give a realistic estimation. Usually, damage is measured as the dent deformation that the pipeline will experience. Depending on the size of the dent, leakage, rupture or...master thesis 2017
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Dumans, Max (author)Boskalis subsidiary Dockwise is the global market leader in heavy marine transport. Their fleet of over 20 semi-Submersible Heavy Transport Vessels (SHTV) is capable to carry the heaviest and largest structures. Until today the load or discharge operation of a floating body has only been performed in sheltered waters. Here, the influences of the...master thesis 2017
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Rapis, Pantelis (author)The monopile is the prevailing foundation concept applied in offshore wind farms, mainly due to construction of offshore wind farms in relatively shallow water. The monopile can provide a technically and financially feasible solution in shallow water environment due to its’ ability to support the wind generator ensuring at the same time the...master thesis 2017
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Kiskiras, Konstantinos (author)Jumbo is a heavy lift, shipping, offshore transportation and installation contractor. Jumbo is an experienced company in ocean transportation for more than 45 years. Since 2003, building on their heavy lift capability, Jumbo is rapidly getting involved in the offshore installation market.<br/><br/>Jumbo normally uses dynamic positioning systems...master thesis 2017
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Rhomberg, Matthieu (author)Optimization of structures in a domain with large uncertainties is rather difficult. This also applies for the offshore wind energy sector. For current offshore wind energy development locations with monopile-based support structures the fatigue limit state is the driving design criteria. These analyses are connected with long time domain...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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Zhu, Rui (author)With the depletion of traditional energy sources, development of renewable energy is turning into a necessity. Besides wind energy and solar energy, another alternative renewable energy is biomass. Seaweed is seen as one of the most promising marine plants that can produce the biomass needed to partly satisfy of our future energy requirements....master thesis 2017
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Kallias Ntroumpis, Dimitris (author)Tideway is a marine solutions provider for the offshore oil & gas and renewables and among other activities specialized in subsea power cable installation. To optimize the installation of power cables in high currents a better understanding of the dynamic behavior of the cables is needed. During installation of subsea power cables in high...master thesis 2017
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de Waal, Wouter (author)A large amount of offshore Oil & Gas platforms including ones located in the North Sea are reaching the end of their life-cycle. While there is already proven technology to remove topsides, the exact methodology to remove support structures is yet to be established. Especially, when it concerns large and heavy support elements of Gravity...master thesis 2017
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Anderson, M.C. (author)In the 26 years since the first offshore wind farm was installed in Vindeby, Denmark, the offshore wind industry has undergone remarkable growth. Recently, this growth has accelerated, advancing farms rapidly into deeper water and utilizing larger turbines. As offshore wind farm developers continue to look towards heavier, higher capacity...master thesis 2017
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Rivera Arreba, Irene (author)Floating wind turbines (FWTs) are proposed as a method to harness the significant wind energy resource in deep water. International research efforts have led to the development of coupled numerical global analysis tools for FWTs in order to understand their behavior under wind and wave actions. The hydrodynamic models in such tools are typically...master thesis 2017
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Jacobs, Peter (author)With the conversion of a heavy transport vessel into a crane vessel, Boskalis aims to strengthen its position in the offshore wind and decommissioning markets. The BOKALIFT 1, as the crane vessel will be named, is equipped with a 3,000 tonne crane and a class-2 Dynamic Positioning system. In order to utilise its exceptional large and strong deck...master thesis 2017
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Gao, Wen (author)Heerema Marine Contractors is building the world’s largest semi-submersible crane vessel ‘Sleipnir’. During the design phase of this vessel, model tests were performed to evaluate the hydrodynamic properties. In the model test, a significant roll motion at a period of 40s was found. Because this response is not within the range of first order...master thesis 2017
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