Ocean Current Turbine for islands and small communities

由于浮式水轮机可以安装在海面以下，因此与其他安装在海面上的海洋能源装置（如浮式风力涡轮机和波浪能发电机）相比，它可以以非常轻的重量建造，并且由于其重量轻而成为降低建造成本的有前途的概念之一。提出了一种对转式水轮机和双水轮机的浮式水轮机概念。为了研究这些概念的性能，开发了仿真代码，并通过模型实验进行了验证。结果表明，这两种概念都有实现的可能性，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.