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Civil Engineering with Sustainability Sustainable Infrastructure Development Assignment title: Offshore wind farm design and energy system integration Weighting: 30% Main objectives of the assignment To gain experience in the initial engineering design of an offshore wind farm, considering aspects of power generation, wind loading, and monopile foundation design. To apply your knowledge of energy supply and demand in a practical context by integrating a new offshore wind farm into an existing energy system. To critically reflect on the UK’s existing electricity generation mix and trends, and apply your knowledge of energy systems to discuss the pathway towards a net zero carbon UK energy sector by 2050. Summary of the assignment Several sites are being considered for a new 800 MW offshore wind farm (OWF) in the North Sea off the coast of England (see Appendix A). The wind farm will employ Siemens SWT-3.6-120 wind turbines (3.6 MW, 120 m rotor diameter) (Figure 1). Depending on the site, the mean water depth is between 10 and 25 m. The soil at all sites is predominantly London clay with sands and gravels in the upper layers. You are tasked with completing a two-stage preliminary appraisal for ONE of the possible sites, as explained below. STAGE 1 Figure 1 A Siemens SWT-3.6-120 wind turbine You will follow a design process (covered in the week 20 lecture and the appended PDF) to obtain initial monopile foundation dimensions based on a maximum load assumed to occur at the rated wind speed ( 𝑣𝑣 𝑅𝑅 ) when a 50-year Extreme Operating Gust (EOG) hits the rotor. STAGE 2 You will assess the role of the new offshore wind farm in decarbonising a hypothetical power generation mix serving a set number of homes. Under the existing mix, these homes are supplied by the base load from a 2 GW nuclear power plant with supply and demand otherwise being Last updated on 08/02/2021 by LH Page | 1
balanced by combined cycle gas turbine (CCGT) power plants. There are no other forms of power generation and energy storage is not considered at this stage of the project. Stage 1 instructions Your site location can be determined from Table 2 in Appendix B and is indicated in Figure 3 in Appendix A, which is a bathymetric map of the North Sea. With reference to the simplified design procedure (“ CE3606 - Assignment Stage 1 Design Procedure.pdf ” on Blackboard), you should

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