Component 37: Simple Mixer

Specifications

Line connections
1	Main flow inlet
2	Main flow outlet
3	Auxiliary flow inlet

General User Input Values Physics Used Displays Example

General

With component 37 the main flow 1 and the auxiliary flow 3 are mixed together. The assumption is that there is no throttling of the pressure of the main flow within the component. This means that the pressure of the auxiliary flow is the same as the pressure of the main flow. It is taken from the main flow. So just the enthalpy and the flow rate have to be defined in the auxiliary flow.

Component 3 is a similar component, but it includes throttling i.e. the pressure of the auxiliary flow must be higher than the pressure of the main flow.

FSPECX allows defining on which pins a composition is to be specified. However, this flag can only be used if the material equations are integrated into the equation system.

(Model option -->Simulation --> Iteration, Level of integration of material equations).

User Input Values

FSPECX

Flag for Handling - Material-equation

Like in Parent Profile (Sub Profile option only)

Expression

=0:   Any given
=1:   Pins 1 and (2 or 3) given
=2:   Pins 2 and (1 or 3) given
=3:   Pins 3 and (1 or 2) given
=12: Pins 1 and 2 given
=13: Pins 1 and 3 given
=23: Pins 2 and 3 given

Physics Used

Equations

All cases

M2= M1 + M3

P2 = P1

H2*M2 = H1*M1 + H3*M3

T2 = f(P2,H2)

if line 2 delivers wet steam, then

X2 = f(P2,H2)

Q2 = Q1 + Q3

NCV2 = (NCV1*M1 + NCV3*M3) / M2

Component Displays

Display Option 1

Display Option 2

Example

Click here >> Component 37 Demo << to load an example.