This converts a gas mass flow rate to observed, standard or normal volume flow rate as well as energy flow rate.
Kelton calculation reference C261
- Volume flow rate
- Standard volume flow rate
- Normal volume flow rate
- Energy flow rate
This allows selection of what type of flow rate mass flow rate is to be converted to.
- Volume based
- Mass based
This option allows the user to enter either a volume or mass based calorific value when calculating energy flow rate.
- Volume correction factor
This option allows the user to select whether to calculate a volumetric type flow rate using the equivalent gas density or by using a volume correction factor.
Volume Correction Factor
- User entered
This option allows the user to enter a volume correction factor or have it calculated using PTZ inputs.
- User entered
- Input as relative density
This option allows the user to select whether to enter standard density or enter a relative density, which will then be used to calculate standard density.
Volume Flow Rate
The volume flow rate is calculated by:
If the density is calculated it is done by:
If the volume correction factor is calculated it is done by:
|P||=||Pressure at line conditions|
|Pb||=||Pressure at base conditions|
|T||=||Temperature at line conditions|
|Tb||=||Temperature at base conditions|
|Z||=||Compressibility at line conditions|
|Zb||=||Compressibility at base conditions|
|ρ||=||Density at line conditions|
|ρb||=||Density at base conditions|
|Qm||=||Mass flow rate|
Energy Flow Rate
The energy flow rate is calculated by:
If volumetric calorific value is applied:
If mass based calorific value is applied: