WOLFRAM SYSTEM MODELER
dewEntropySpecific entropy of vapor phase w.r.t. saturation pressure | use setSat_p function for input |
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Wolfram Language
In[1]:=
SystemModel["Modelica.Media.R134a.R134a_ph.dewEntropy"]
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Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
This function calculates the vapor phase entropy of R134a from the state variable p (absolute pressure). It is modelled by cubic splines which are fitted with non-equidistant grid points derived from the fundamental equation of state of Tillner-Roth and Baehr (1994) and the Maxwell criteria.
Restrictions
It is only valid in the two-phase region (i.e., ptriple ≤ p ≤ pcrit ).
Syntax
sv = dewEntropy(sat)
Inputs (1)
| sat |
Type: SaturationProperties Description: Saturation property record |
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Outputs (1)
| sv |
Type: SpecificEntropy (J/(kg⋅K)) Description: Dew curve specific entropy |
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