dBubbleEntropy_dPressure

Derivative of liquid specific entropy in two-phase region w.r.t. pressure | use setState_phX function for input

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

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 ).

Syntax

dsldp = dBubbleEntropy_dPressure(sat)

Inputs (1)

sat

Type: SaturationProperties

Description: Saturation properties | pressure is used for interpolation

Outputs (1)

dsldp

Type: Real

Description: Derivative of liquid specific entropy in two-phase region w.r.t. pressure