PO.SF.CH.Gas.Size.SI
Description
Required choke diameter for sonic gas flow, [cm] (SI units).
Formula
=LAMBDA(Qg, P_up, SG_gas, T, Cd, k, LET(
Qg_Mscfd, PO.UnitConverter(Qg, "sm3/d", "Mscf/d"),
P_up_psi, PO.UnitConverter(P_up, "kPa", "psi"),
T_degF, PO.UnitConverter(T, "degC", "degF"),
result_in, PO.SF.CH.Gas.Size(Qg_Mscfd, P_up_psi, SG_gas, T_degF, Cd, k),
PO.UnitConverter(result_in, "in", "cm")))Parameters
| Parameter | Unit | Description |
|---|---|---|
Qg |
sm3/d | Gas flow rate, [sm3/d] |
P_up |
kPa | Upstream pressure, [kPa] |
SG_gas |
- | Gas specific gravity (air=1) |
T |
degC | Upstream temperature, [degC] |
Cd |
- | Discharge coefficient |
k |
- | Specific heat ratio (Cp/Cv) |
Examples
| Invocation | Expected |
|---|---|
=PO.SF.CH.Gas.Size.SI(28317, 6895, 0.65, 37.78, 0.85, 1.3) |
0.56058596 |