碩士 / 國立臺灣大學 / 工程科學及海洋工程學研究所 / 101 / In order to harvest Kuroshio Current energy, anchoring and mooring technology of floating marine current turbines is one of the key challenges. A floating marine current turbine needs to float stably at a proper depth for generating power steady, and also needs to go up to the surface for maintenance, or even to go down deeper to avoid the influence of waves caused by Typhon. Therefore, in addition to rotor and nacelle for harvesting energy, it may look similar to an underwater vehicle with a fuselage for offering static buoyancy, wing and control surfaces for offering dynamic lift. Besides, it is connected by a wire or rope to the anchor, which is fixed at the seabed.
In the present study, the tension forces of the mooring line for a marine current turbine floating in a steady current of constant speed is investigated. CFD software ANSYS-FLUENT is adopted to calculate the hydrodynamic forces of the turbine, and Finite Element Model is applied to simulate the mooring line. The force equilibrium equations of the whole system including the turbine and mooring line are solved by a program of MATLAB. The rated power of the simulated turbine with counter rotating twin rotors at current speed of 1.5 m/s is about 0.5 MW. Steel wire and polyester rope are investigated as the mooring line in the present study.
| Identifer | oai:union.ndltd.org:TW/101NTU05345026 |
| Date | January 2013 |
| Creators | Sheng-Hsiang Huang, 黃聖翔 |
| Contributors | 邱逢琛 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 61 |
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