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Investigation of Ocean Current Power Around the Linshanbi
|Authors: ||Chuang, Hsiang-Yen|
|Contributors: ||NTOU:Department of Harbor and River Engineering|
Ocean Energy;Current Power;Generation Potential
|Issue Date: ||2017-05-24T08:40:26Z
|Abstract: ||台灣四面環海，海洋能源的開發及利用倡議不斷。台灣約99%的電力能源仰賴進口，在環保、乾淨與安全取得電力能源前提下，依台灣的地理環境，海潮流能是繼太陽能及風能外，綠能發展的選擇之一。海流發電的開發及利用，主要係先評估該能源可資利用的發電潛能價值為何。根據經濟部工業技術研究院評估台灣周圍近岸海域海流能蘊藏，於台灣北部海域因有強流集中現象，為具海流發電效益的場域之一。緣此，本研究根據麟山鼻海域潮汐、波浪及海流等現場觀測成果，將現場實測資料提供做為數值模式率定參數，進一步模擬麟山鼻海域流場分佈特性，並提出優勢海流發電設置場域。根據本研究水動力模式計算結果顯示，於麟山鼻外海等深線-20 ~ -50 m海域海流最大流速可達2.27 m/s，平均流速介於1.62 ~0.94m/s間，主要流向則為東北-西南向，並以海流發電潛能計算公式將流速轉換成海流發電潛能，發現在座標(E°121.47274,N°25.30460; E°121.49665,N°25.32438)圍成的矩形海域範圍(約5.3 km2)較具發電效益。|
Taiwan is surrounded by the sea and has been continually advocating developing and utilizing ocean power. Approximately 99% of Taiwan’s electrical power depends on imports. Under the premise of obtaining electrical power in a manner that is environmentally friendly, clean, and safe for Taiwan’s environment, ocean current power is a green energy alternative to solar and wind power. Developing and utilizing ocean current power requires first assessing its potential and value. According to the Industrial Technology Research Institute’s simulation of the near-coast ocean areas around Taiwan, the strong currents concentrated in Taiwan’s northern ocean areas would be beneficial for generating ocean current power. Therefore, this study conducted observations of tides, waves, and ocean currents in the ocean area near Linshanbi. The field measurement data provided the calibration parameters for a Numerical module, further simulating the flow-field distribution characteristics of the ocean area near Linshanbi, from which an advantageous position and orientation were proposed for establishing an ocean-current power station. The results of a hydrodynamic model revealed that the maximal flow rate in the isobaths at -20 ~ -50 m depths off the Linshanbi coast is approximately 2.27 m/s, with a mean flow rate of 1.62-0.94 m/s in a principally northeast–southwest direction. Furthermore, the field observation data were compared to the model calculation results, and a formula was employed to convert the flow rate into ocean-current power generation potential. The generation potential was concentrated among the coordinates (E°121.47274,N°25.30460) and coordinates (E°121.49665,N°25.32438) with 5.3-km2 rectangular area.
|Appears in Collections:||[河海工程學系] 博碩士論文|
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