Ocean Current Turbine for islands and small communities

由于浮式涡轮机可以安装在海面以下，与安装在海面上的其他海洋能源设备如浮式风力机和波浪发电机相比，它的重量很轻，是一种很有希望的概念，因为它的重量减少了建造成本。提出了一种对转涡轮概念和一对双涡轮概念作为浮动型。为了考察这些概念的性能，开发了模拟程序，并通过模型实验进行了验证。结果表明，这两种方案都具有实现低成本发电的可能性。

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.