Concept information
Preferred term
Definition
- 由流下的水推动涡轮机产生能量。因水力的高能量转换率,故成为最重要的再生能源。有两种型式的水力电厂:a)利用丰沛的河水发电的电厂;b)储存式电厂(水库电厂),进流水水量可经由水库的调节控制。大部分是利用高度差,如高山溪流。水库电厂通常是有土壤或水泥建造的水坝。虽然水力发电的环境相容性高,但仍有一些问题:a)改变地下水水位,并将河岸填充碎石;b)水坝溃决的危险;c)对土地空间的需求大;d)缩小但也部分增加了休閒地区。世上的水力发电有限,但世上对能源的需求却不断上升,造成水力发电的分配量将会降低。
Broader concept
- primary energy (en)
- renewable energy (en)
- 水电
Belongs to group
Belongs to array
- ENERGY (en)
- gemet:groupCollection (gemet)
- gemet:superGroupCollection (gemet)
- HUMAN ACTIVITIES AND PRODUCTS, EFFECTS ON THE ENVIRONMENT (en)
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