Pressure as a renewable source of energy

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  • #1
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I am designing a machine to produce electricity , using pressure as a source of energy.
So my question is simple, is there any machine or device that are used to produce electricity from pressure?
 

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  • #2
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Yes, google piezoelectrics.
 
  • #3
Vanadium 50
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Note that anything that leaves the pressure unchanged will not produce electricity.
 
  • #4
SteamKing
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Central station steam plants use lots of pressure to make electricity, though not directly of course.
 
  • #5
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Yes, google piezoelectrics.
I know about piezoelectrics , they are not considered as power generators though, i am talking about a generator , to generate electricity on a bigger scale, like solar or wind
 
  • #6
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Central station steam plants use lots of pressure to make electricity, though not directly of course.

doesn't a steam plant need a source of energy to produce steam ?
 
  • #7
SteamKing
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doesn't a steam plant need a source of energy to produce steam ?
They sure do. But pressure doesn't exist by itself, in a vacuum, so to speak.
 
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  • #8
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Pressure by itself cannot be used to power anything. For that you need 2 regions of different pressure.
 
  • #9
russ_watters
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Hydroelectric dams (usually) also utilize the pressure energy of pressurized water to produce energy. Are we detecting a pattern yet?
 
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  • #10
russ_watters
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Pressure by itself cannot be used to power anything. For that you need 2 regions of different pressure.
And something flowing between them.
 
  • #11
SteamKing
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It's like saying, I'm gonna use me some high temperature to make an electric generator.
 
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  • #12
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Ok , thanks for your help
 

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