Tide Energy 李嘉麒

What is tide energy？ The regular change of the gravity The regular transformation of the seawater level Potential energy + Kinetic energy Tide energy

advantages Renewable and clean regularity abundant

The situation in china Geographically uneven distribution The east China sea has the largest coastal tidal range, followed by the south China sea and bohai sea Qiantang river owns the richest estuarine tide energy(河口潮汐能), followed by the estuary of the Yangtze river. The following are the estuaries of Zhujiang, Jinjiang and Minjiang In terms of area, tide energy is mainly distributed along the east coast of China

How tidal power turns to electricity The water flows into the reservoir when the water level rises The water comes out during the ebb The generator converts the potential energy and kinetic energy of water into electricity

Tidal power energy station 1 单库单向型 2 单库双向型 3 双库连续发电型

1.单库单向型 feature only one reservoir and only works during the ebb advantage simple device and low investment disadvantage low utilization of tidal power and discontinuity of power generation

2.单库双向型 feature it can work during the flood and ebb tide advantage high utilization disadvantage high investment

涨潮

退潮

3.双库单向型 feature two reservoirs advantage generate continuously disadvantage high investment and small water level range

（a） When the seawater level is between the level of high level reservoir and low level reservoir, two gates are all closed. （b）When the seawater level is higher than the level of high level reservoir, open the intake gate and close the other.

（c）This process is the same as the first one . （d）When the seawater level is lower than the level of the low level reservoir, close the intake gate and open the other.

世界主要潮汐电站

Tidal power station, Wenling, Zhejiang

Rance tidal power station, France

Tidal power station in Annapolis, Canada

Thank you！