This function calculates the Kelvin temperature of R134a from the state variables p (absolute pressure) and h (specific enthalpy). The temperature is modelled by the fundamental equation of state of Tillner-Roth and Baehr (1994).
function temperature_ph extends Modelica.Icons.Function; input AbsolutePressure p "pressure"; input SpecificEnthalpy h "specific enthalpy"; input Integer phase = 0 "2 for two-phase, 1 for one-phase, 0 if not known"; output Temperature T "temperature"; end temperature_ph;