https://reference.wolfram.com/system-modeler/libraries/Modelica/Modelica.Media.Air.MoistAir.saturationPressure_der.html
Modelica: Media.Air.MoistAir.saturationPressure_der - System Modeler Documentation
Derivative function for 'saturationPressure'
media airsystem modelermodelicaderdocumentation