Quote:
Originally Posted by Xist
Is there an equation for the power required to reach a certain amount of pressure? I would not expect it to be linear.
|
If you define enough of the context yes.
Pressure is a type of force... PV=nRT (ideal gas law)
Energy is the force acting over a distance.
Power is the rate of energy flow per unit time.
While not 100% linear in the real world ... under most conditions materials that work similar to the ideal gas law , are fairly linear.
Either way , the point remains the same = their calculations are incorrect.
Each step is less than 100% efficient ... compressing , storing , de-compressing, etc... the best one can hope for it as has been posted about the source of the energy you are consuming (solar, etc.) ... free to me isn't free , but I don't have to pay for it.