How can I calculate the volume of leaked gas in a leak testing project?

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To calculate the volume of nitrogen leaking through the valve, use the ideal gas law, which relates pressure, volume, and temperature. Given that Side B has a fixed volume of 100 ft³ and reaches a pressure of 4 psi after one hour, you can determine the amount of gas that has entered from Side A. Assuming a constant temperature, the change in pressure can be used to find the volume of gas that leaked. The initial pressure of Side A is 4000 psi, which is significantly higher than Side B's final pressure, indicating a substantial leak. This method allows for an accurate estimation of the gas volume involved in the leak testing project.
OffshoreEng
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Hi,
I am working on a leak testing project in which i have a leaking valve and I am trying to determine the volume of nitrogen leaking through the valve.

Side A (upstream of valve) starts at 4000psi with an unknown volume. Side B (downstream of valve) starts at 0psi with a pressure contained volume of 100ft^3. After 1 hour, Side B now has 4psi. How can I calculate the volume of air that leaked through the valve from Side A to Side B?

I have attached a visual for a better understanding.

Thank you for your help.
 

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You've got a fixed volume with a certain pressure inside. By making a reasonable assumption about the temperature of the gas inside, you can use the ideal gas law to calculate the mass of air (nitrogen?) which has leaked into Side B.
 

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