Hydro power

當位於高處的水(具有位能) 往低處流時產生位能差,此時裝設在水道低處的水輪機因水流的動
The water flow from high potential  to low potential can make the generator roll,then produce
electricity.

能推動葉片而轉動,進而帶動發電機轉動發電.


通常水庫下方的發電場都有抽蓄式,除了白天尖峰時水庫放水發電外,夜間則利用過多的電力把
At day,it produce electricity.At night, it uses  leftover power to bring water back to the reservoir,then use it at day.

水抽上水庫,以利白天尖峰時刻發電用.

能量大約轉換過程:位能->動能->機械能->磁能->電能
The energy transformation process:potential->Kinetic->mechanical->magnetic->electricity.

影片介紹:http://home.clara.net/darvill/altenerg/hydro.htm