T_Triple
T_Triple is a function that returns the triple point temperature of the specified fluid. The returned value depends on the unit setting made in the Unit System dialog. The fluid may be a fluid name or a string variable.
The triple point provides an estimate of the melting temperature, since the pressure dependence of the solid-liquid phase transition is small. The enthalpy change upon melting is provided for most of the substances in the data base with function ENTHALPY_FUSION.
Example:
$UnitSystem SI K
$VarINfo T_t units=K
T_t=T_triple(R134a)
{Solution:
T_t=168.9 [K]
}