Approximations for the enthalpy of compressed water

Reference no: EM13257803

The properties of compressed liquids are commonly approximated by the equation, written here for specific volume, v(T ,P ) = vf (T ) Enthalpy (h = u + Pv) is one property where this approximation can lead to significant errors because pressure appears explicitly in its definition. Two possible approximations for the enthalpy of compressed water are h(T ,P ) = hf(T ) h(T,P) =hf (T ) vf (T ) [ P- Psat (T )] The latter is a more accurate approximation than the former. Calculate h at 20C and 100 bar using these two approximations and compare your answers.

Reference no: EM13257803

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