Studies on small-sized efficient rotating machine for tidal power generation

潮汐和海流发电有效地使我们能够提供一种涡轮机直径相对较小的可再生能源，因为海水密度是大气的800多倍。本研究以潮汐能和海洋动力系统为重点，从海洋、船舶/港口、铁路/桥梁、电子机械和能源材料等方面进行研究。然后，设计了沿海、岛屿和内海的运行试验，以获得适合的能量回收系统。设计并组装了一个小型样机，该样机是新颖、紧凑、高效的旋转机械概念的重要组成部分。

Tidal and ocean current power generation effectively enable us to supply a kind of renewable energy with relatively small turbine diameter in compared to wind turbine thanks to sea water density which is more than 800 times of that for atmosphere. In the present study, one focuses on tidal and ocean power system together with the viewpoints on ocean, ship/port, railway/bridge, electronics and machinery, and energy materials. Then, operation tests are designed for coastal, islands and inland sea to obtain a suitable energy recovery system. A small-sized demonstrator, which is composed of a vital part of novel, compact and efficient rotating machine concepts, was designed and assembled together.