reference specific enthalpy
Hi all, Which is the physical interpretation of reference specific enthalpy in the definition of the specific heat capacity? Thank you in advance
Re: reference specific enthalpy
It's just the base enthalpy level for the material. i.e. h = h_ref at T=T_ref, p=p_ref.
For a constant cp gas:
h - h_ref = cp*(T-T_ref)
For a single material the value of h_ref does not really matter. If you have combustion or phase change then it matters. eg, if you have water evaporating into steam then the h_ref values have to differ at a given T/P by h_fg.
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