Energy Yield Assessment from Ocean Currents in the Insular Shelf of Cozumel Island
Energy Yield Assessment from Ocean Currents in the Insular Shelf of Cozumel Island
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DOI：
10.3390/jmse7050147
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发表时间：
2019-05-01
影响因子：
2.9
通讯作者：
Carrillo, Laura
中科院分区：
文献类型：
--
作者：
Carlos Alcerreca-Huerta, Juan;Encarnacion, Job Immanuel;Carrillo, Laura
海洋可再生能源是一种有前途的创新替代能源，可满足不断增长的人口的能源需求，同时减少化石燃料的消耗。大多数技术进步和能源产量评估都侧重于促进流速高于2.0 m/s（-1）的潮汐流动能的利用。然而，由于洋流几乎连续和单向的季节性流动，最近对洋流的缓慢流动进行了探索。在这项研究中，尤卡坦当前的潜力进行了分析，在近岸网站在墨西哥加勒比海的科苏梅尔岛的岛架。使用船上安装的声学多普勒海流剖面仪进行了实地测量，以分析流速的空间分布，沿着电导率-温度-深度剖面以及水深和水位的数据收集。确定了向北流动的速度，在科苏梅尔海峡的海峡结束之前，速度逐渐增加，记录的平均速度为0.88-1.04 m s（-1）。采用叶素动量理论对水平轴涡轮机的功率输送进行了估算。据估计，可向科苏梅尔岛提供近3.2兆瓦的电力，约占其电力消耗的10%。
Marine renewables represent a promising and innovative alternative source for satisfying the energy demands of growing populations while reducing the consumption of fossil fuels. Most technological advancements and energy yield assessments have focused on promoting the use of kinetic energy from tidal streams with flow velocities higher than 2.0 m s(-1). However, slower-moving flows from ocean currents are recently explored due to their nearly continuous and unidirectional seasonal flows. In this study, the potential of the Yucatan Current was analysed at nearshore sites over the insular shelf of Cozumel Island in the Mexican Caribbean. Field measurements were undertaken using a vessel-mounted Acoustic Doppler Current Profiler (ADCP) to analyse the spatial distribution of flow velocities, along with Conductivity-temperature-depth (CTD) profiles as well as data gathering of bathymetry and water elevations. Northward directed flow velocities were identified, with increasing velocities just before the end of the strait of the Cozumel Channel, where average velocities in the region of 0.88-1.04 m s(-1) were recorded. An estimation of power delivery using horizontal axis turbines was undertaken with Blade Element Momentum theory. It was estimated that nearly 3.2 MW could be supplied to Cozumel Island, amounting to about 10% of its electricity consumption.