PO.SF.CH.Gas.Pwh Function

Description:

Required upstream pressure for sonic gas flow, [psia].

Excel Function Syntax:

=PO.SF.CH.Gas.Pwh(Qg, d_choke, SG_gas, T, Cd, k)

Parameters:

Parameter	Description
Qg	Gas flow rate, [Mscf/d].
d_choke	Choke diameter, [inches].
SG_gas	Gas specific gravity (air=1).
T	Upstream temperature, [degF].
Cd	Discharge coefficient.
k	Specific heat ratio (Cp/Cv).