C256 – Gas Density Computation PTZ
Description
This calculates either the line or standard density depending on the option selected.
References
Kelton calculation reference C256
FLOCALC calculation reference F065
KIMS calculation reference K205
Options
Solve for
- Line density
- Standard density
Select option based on which density you wish to calculate.
Calculate
- Relative density
Allows user to calculate the output density as a relative density.
Calculate from
- Standard density
- Relative density
- Molecular weight
- Line density
Select option based on the data you wish to enter.
Constants
Molar gas constant – R = 8.314621 Jmol-1K-1
Calculation
The calculation uses the following pressure, temperature and compressibility relationships to calculate line or standard density.
| Where | ||
|---|---|---|
| M | = | Molelcular weight |
| P | = | Pressure |
| Pb | = | Pressure at base conditions |
| T | = | Temperature |
| Tb | = | Temperature at base conditions |
| Z | = | Compressibility factor |
| Zb | = | Compressibility factor at base conditions |