[Stormy]

Good day everyone,
I am trying run a simple cross flow heat exchanger using N2 fluid.
The temperatures range is 90 - 300 [K].
I have two streams, H@10 MPa and L@0.1 MPa.
I using temperature depended properties, i got from NIST site.

My question is regarding energy equation being solved by fluent.

As I understands it Enthalpy is calculated using h=cp*T releation.
The L stream N2 acts much like ideal gas, when H stream not.
It means h from NIST tables and cp*T are not behaves the same, h closely linear with T, cp not at all.

Should i modify my cp data, to fit: h - h.ref = cp* (T - T.ref ) ?