Filmmaker and inventor fascinated by Physics

[pouliotjf]

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Hi, my question is about electricity, hydrostatic pressure, potential energy and friction. Using an electrically powered compressor (such as compressors used to fill diving bottles) if I fill a tank of volume 10 cubic meters to a pressure of 100psi, 1. what is the potential energy stored in that tank? 2. If I use that stored pressure to power an actuator that will in turn power an alternator (or electrical turbine), how much energy have I lost it in the process?
Thanks

 

[berkeman]

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