PO.EoS.Envelope.PR Function

Description:

Phase envelope using Peng-Robinson EoS. Output: 'bubble_T', 'bubble_P', 'dew_T', 'dew_P' (arrays), or 'cricondenbar_P/T', 'cricondentherm_P/T', 'critical_P/T' (scalars).

Excel Function Syntax:

=PO.EoS.Envelope.PR(zi, props, output, kij, nPoints)

Parameters:

Parameter	Description
zi	Mole fractions (N×1 range, must sum to 1.0).
props	Component properties (N×4 range: Tc, Pc, omega, Mw).
output	'bubble_T', 'bubble_P', 'dew_T', 'dew_P', 'cricondenbar_P', 'cricondenbar_T', 'cricondentherm_P', 'cricondentherm_T', 'critical_P', 'critical_T'.
kij	Binary interaction parameter matrix (N×N). Omit in formula for default zeros.
nPoints	Number of points per curve.