Ocean Current Turbine for islands and small communities

由于漂浮式海流涡轮机可以安装在海面下，因此与安装在海面上的其它海洋能源装置（例如漂浮式风力涡轮机和波浪发电机）相比，可以以非常轻的重量来构造该漂浮式海流涡轮机，并且由于其重量，该漂浮式海流涡轮机是降低建造成本的有前景的概念之一。提出了对转涡轮机和双涡轮机概念作为浮动型。为了研究这些概念的性能，已经开发了一个仿真代码，并通过模型实验进行了验证。这两个概念都有可能实现，并产生低成本的电力。

Since the floating type current turbine can be installed beneath the sea surface, it is possible to construct it in very light weight compared with other marine energy devices installed on the sea surface such as floating wind turbines and wave power generators, and it is one of promising concepts for reducing the construction cost because of its weight. A contra-rotating turbine concept and a twin turbine concept are proposed as the floating type. In order to investigate the performance of these concepts, a simulation code has been developed, and it is validated by model experiments. It is concluded that both two concepts have possibility to be realized and produce low cost electricity.