Natural gas flow is not always comparable if measured at different pressures and temperatures. Therefore, in industrial applications, correction is often used so that consumption is expressed in common reference conditions.
Actual and standard volume
Actual volume depends on the pressure and temperature of the gas at the measuring point. The standard or corrected volume refers to defined reference conditions.
Why correction is needed
Without correction, two equal volume readings can correspond to a different quantity of gas if the pressure and temperature conditions differ.
Pressure and temperature correction
A volume corrector uses pressure and temperature measurements and applies the appropriate calculations to convert the reading to reference conditions.
Compressibility
In more precise calculations, the compressibility factor of the gas is also taken into account. The correct method depends on the application and measurement requirements.
Practical value
The correctly corrected flow is important for energy monitoring, burner comparison, specific consumption calculation, and performance auditing.
