WOLFRAM SYSTEM MODELER
dDewEntropy_dPressureDerivative of vapor specific entropy in two-phase region w.r.t. pressure | use setState_phX function for input |
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Wolfram Language
In[1]:=
SystemModel["Modelica.Media.R134a.R134a_ph.dDewEntropy_dPressure"]
Out[1]:=
Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
This function calculates the derivative of vapor entropy of R134a with regard to the state variable p (absolute pressure). The non-derivative function is dewEntropy.
Restrictions
It is only valid in the two-phase region (i.e., ptriple ≤ p ≤ pcrit ).
Syntax
dsvdp = dDewEntropy_dPressure(sat)
Inputs (1)
| sat |
Type: SaturationProperties Description: Saturation properties | pressure is used for interpolation |
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Outputs (1)
| dsvdp |
Type: Real Description: Derivative of vapor specific entropy in two-phase region w.r.t. pressure |
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