ValveY_factor Method

Calculates the expansion factor Y, which accounts for the change in gas density as it flows through the valve restriction (per ANSI/ISA-75.01.01).

Definition

Namespace: DWSIM.UnitOperations.UnitOperations
Assembly: DWSIM.UnitOperations (in DWSIM.UnitOperations.dll) Version: 10.0.0.0

C#Request Example

public double Y_factor(
	double x,
	double k,
	double xT
)

VBRequest Example

Public Function Y_factor ( 
	x As Double,
	k As Double,
	xT As Double
) As Double

Parameters

x Double: Pressure differential ratio (P1 − P2) / P1.
k Double: Ratio of specific heats (Cp/Cv) of the gas.
xT Double: Pressure differential ratio factor at choked flow for the valve style.

Return Value

Double
The dimensionless expansion factor Y (1 at no pressure drop, decreasing toward choke).

See Also

Reference

DWSIM.UnitOperations.UnitOperations Namespace