functiondBubbleEntropy_dPressure
Derivative of liquid specific entropy in two-phase region w.r.t pressure | use setState_phX function for input
Extends from Modelica.Icons.Function (Icon for functions).
Information
This function calculates the derivative of liquid entropy of R134a with regard to the state variable p (absolute pressure). The non-derivative function is bubbleEntropy.
Restrictions
It is only valid in the two-phase region (i.e., ptriple ≤ p ≤ pcrit ).
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| SaturationProperties | sat | saturation properties | pressure is used for interpolation |
Outputs
| Type | Name | Default | Description |
|---|---|---|---|
| Real | dsldp | derivative of liquid specific entropy in two-phase region w.r.t pressure |