Difference between revisions of "Hydroelectric power 2014"

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== [[User:NL-Jelmer]] ==
 
== [[User:NL-Jelmer]] ==
 
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A dam is built to trap water, usually in a valley where there is an existing lake.                                            Water is allowed to flow through tunnels in the dam, to turn turbines(which look a little like an ammonite shell: a wheel with bucket-shaped blades around the rim.  Water "blows" them round, and they drive generators in hydro-electric power stations).                                                                                                                                  Notice that the dam is much thicker at the bottom then the top, because the water pressure increases how deeper you go down.                                                                                                              Hydroelectric power stations can produce a great deal of power very cheaply.
  
 
==Comment of Ms. Doolaard==
 
==Comment of Ms. Doolaard==
 
Where is your contribution?
 
Where is your contribution?

Revision as of 09:41, 30 September 2014


User:ES-Pablo

Comment of Ms. Doolaard

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User:ES-Pedro

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User:ES-Vanessa

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User:NL-Sander

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User:NL-Olivier

Comment of Ms. Doolaard

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intoduction: Our group is going to talk about hydroelectic power. Hydroelectricity means getting energy from flowing or falling water. We´re going to give some main information like: - how it works -

Comment of Ms. Doolaard

Where is your contribution?

User:NL-Jelmer

A dam is built to trap water, usually in a valley where there is an existing lake. Water is allowed to flow through tunnels in the dam, to turn turbines(which look a little like an ammonite shell: a wheel with bucket-shaped blades around the rim. Water "blows" them round, and they drive generators in hydro-electric power stations). Notice that the dam is much thicker at the bottom then the top, because the water pressure increases how deeper you go down. Hydroelectric power stations can produce a great deal of power very cheaply.

Comment of Ms. Doolaard

Where is your contribution?