- #1
Evanish
- 120
- 10
I was reading this article about different types of energy storage, and it gave this formula for compressed air.
Joules = P0V0ln(P/P0)
Where
P0 = Atmospheric pressure 105 Pa
V0 = Volume of air to be compressed in m3.
P = Pressure in tank when compressed in Pa.
Note: This formula is for Isothermal storage.
The reason for this post is because I want to make sure I'm understanding this formula correctly, and because I want to know if this formula is valid at all pressures. I'm guessing it's based on the ideal gas law, and at some pressure it starts to break down, but I don't know if that's true or at what pressures it becomes an issue. I don't know that much about this topic so I decided to ask here. Thanks.
Joules = P0V0ln(P/P0)
Where
P0 = Atmospheric pressure 105 Pa
V0 = Volume of air to be compressed in m3.
P = Pressure in tank when compressed in Pa.
Note: This formula is for Isothermal storage.
The reason for this post is because I want to make sure I'm understanding this formula correctly, and because I want to know if this formula is valid at all pressures. I'm guessing it's based on the ideal gas law, and at some pressure it starts to break down, but I don't know if that's true or at what pressures it becomes an issue. I don't know that much about this topic so I decided to ask here. Thanks.
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