Gas Purge Calculator

Formula

The formula to calculate the Gas Purge (GP) is:

\[ GP = \frac{-4}{\log\left(\frac{Pa}{Ph}\right)} \]

Where:

Gas Purge: The number of purge cycles needed to achieve a desired level of purity in a system.
Significance: Used in various industrial processes to ensure the removal of unwanted gases or contaminants.

Let's say the atmospheric or vent pressure (Pa) is 101325 Pa and the absolute pressure used for the purge (Ph) is 50000 Pa. Using the formula:

\[ GP = \frac{-4}{\log\left(\frac{101325}{50000}\right)} \approx -5.66 \]

So, the gas purge (GP) is approximately -5.66 purge cycles.