PO.SF.CH.Gas.Pwh.SI
Description
Required upstream pressure for sonic gas flow, [kPa] (SI units).
Formula
=LAMBDA(Qg, d_choke, SG_gas, T, Cd, k, LET(
Qg_Mscfd, PO.UnitConverter(Qg, "sm3/d", "Mscf/d"),
d_choke_in, PO.UnitConverter(d_choke, "cm", "in"),
T_degF, PO.UnitConverter(T, "degC", "degF"),
result_psi, PO.SF.CH.Gas.Pwh(Qg_Mscfd, d_choke_in, SG_gas, T_degF, Cd, k),
PO.UnitConverter(result_psi, "psi", "kPa")))Parameters
| Parameter | Unit | Description |
|---|---|---|
Qg |
sm3/d | Gas flow rate, [sm3/d] |
d_choke |
cm | Choke diameter, [cm] |
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.Pwh.SI(28317, 1.27, 0.65, 37.78, 0.85, 1.3) |
1343.4183 |