Oil linear enthalpy¶
The linear oil enthalpy model relates the enthalpy with temperature only, using the oil specific heat capacity. An example is given below:
EOS OIL
DENSITY CONSTANT 734.29d0 !kg/m3
ENTHALPY LINEAR_TEMP 1.d3 !c oil [J/kg/°C]
VISCOSITY CONSTANT 0.987d-3 !
END
The mathematical expression of the model is represented below:
\[h_{\mbox{oil}} =c_{\mbox{oil}} T,\]
where:
\[\begin{split}\begin{split}
&h_{\mbox{oil}} &= \mbox{oil Enthalpy [J]}\\
&c_{\mbox{oil}} &= \mbox{oil specific heat capacity [J/kg/°C]}\\
&T &= \mbox{temperature [°C]}
\end{split}\end{split}\]
Units cannot be specified, therefore the oil specific heat must be entered in the units prescribed above.