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Institutional Repository [SANDBOX]
Technical University of Crete
Technical University of Crete
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| URI: | http://purl.tuc.gr/dl/dias/97867774-3B3B-4702-A771-DECC1DAC5FD9 | ||
| Year | 2024 | ||
| Type of Item | Diploma Work | ||
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| Bibliographic Citation | Konstantinos Stefanakis, "Design optimization of desalination systems with wave energy", Diploma Work, School of Electrical and Computer Engineering, Technical University of Crete, Chania, Greece, 2024 https://doi.org/10.26233/heallink.tuc.100512 | ||
| Appears in Collections |
Nowadays, the water supply of small and large settlements is becoming more and more demanding. Providing drinking water is not an easy task. Thus, ways are being sought to cover the drinking water needs of each population. Coastal areas have an advantage over inland areas due to the direct access they have to water, which, by utilizing appropriate desalination units, are able to exploit. But apart from the opportunity of water supply, sea water gives the possibility of its further utilization. The waves on the surface of the water caused by various weather conditions, carry energy which can be converted into electrical energy using suitable wave energy converters.The purpose of this thesis is to optimize the design of desalination units, which operate with wave energy. For the optimization, the PSO (Particle Swarm Optimization) algorithm was used, in terms of operating costs (for autonomous and grid-connected systems) and the profit of selling excess electrical energy derived from the wave conversion (for grid-connected systems). The optimization was performed in three classes of systems, while four different types of wave energy converters (WECs) were used. The first category is the conventional systems that are electrified exclusively from the power supply network. Conventional desalination systems were used not only as a measure of performance comparison, but also for the comparison of operating costs between them and the systems that utilize wave energy. The second system class is the fully autonomous systems powered exclusively by wave energy. The third and final category is the grid-connected systems, which combine power from the electric grid with power obtained from wave energy. The objective is to find the optimal quantity combination of the various elements that synthesize the system, satisfying both the optimization goals, and the potable water needs for a twenty-year period.
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