Wave energy converter – breakwater system for low wave energy shorelines

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dc.contributor.authorMustapa, Muhammad Adli
dc.date.accessioned2024-11-28T00:32:39Z
dc.date.available2024-11-28T00:32:39Z
dc.date.issued2018
dc.descriptionThesis (Ph.D (Mechanical Engineering))
dc.description.abstractOne form of renewable energy source is ocean waves. Among the concepts being explored is the integration of wave energy converter (WEC) and breakwater. The present work develops the concept further for energy extraction and wave dissipation in regions with low wave energy. In this study, the multi-stage overtopping concept was chosen as a suitable concept. In order to enhance the performance of this new integration device, studies related to overtopping and breakwater front design, and reflector application was conducted using both numerical and experimental approach. The numerical study was carried out using Flow-3D CFD software and experimental works were carried out using Port and Harbour Facility in National Hydraulic Research Institute Malaysia (NAHRIM). The results are presented in the form of mean overtopping discharge, total energy potential and device efficiency. The results from overtopping front design study show that the most optimum overtopping ramp design in low sea-states (significant wave height of 1.25 meter) are the Convex and SSG design while V-shape design is better at wave heights greater than 1.25 meter. The second study conducted on breakwater front design shows Design 5 with dual run-up concept has the ability to improve overtopping amount on the reservoir with highest device efficiency recorded at 9.9 percent. Further study with reflector application was carried out to further improve the run-up level produced by Design 5, designated Design 6. The final results show the maximum device efficiency for the new Design 6 is 40.3 percent. Even at a smaller wave height of 0.75 meter, Design 6 is still able to produce an overtopping event at the reservoirs as it recorded 9.88 kW of total energy potential, compare to 0.19 kW as recorded using non-reflector application. The additional self-protection ability using the reflector cut application helps to protect the overtopping ramp from massive wave impact. The final application of Design 6 in Mersing is expected to produce 37.27 MWh/year of the annual energy output
dc.description.sponsorshipFaculty of Mechanical Engineering
dc.identifier.urihttps://openscience.utm.my/handle/123456789/1367
dc.language.isoen
dc.publisherUniversiti Teknologi Malaysia
dc.subjectRenewable energy sources
dc.subjectOcean wave power
dc.subjectOcean energy resources
dc.subjectPower resources
dc.titleWave energy converter – breakwater system for low wave energy shorelines
dc.typeThesis
dc.typeDataset
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