The specific heat value varies with temperature and pressure. High pressure or temperature values lead to higher specific heat value. However, there are three ways to answer your question.

First: Use interpolation to evaluate enthalpy from the steam table then calculate specific heat.

Second: Use specialized software to evaluate thermodynamic properties.

Third: Kindly read the manuscript titled “Expressions for Thermophysical Properties Of Superheated Steam”.

Well, in general, these condition can be found in area represented by:

Hot mineral water which can be divided according to its exit from the earth surface to:

1 Hot spring water: It is the water that comes out of cracks and rocks.

2 - Hot water in area of structural faults(Geysers), the water that goes out along Faults and fractures.

3 Water of hot seam areas: Water that comes out of contact areas of rocks and strata whose lithological properties vary.

4 Hot water or bending: the water passing from the layers that are exposed to the folding factors.

5 hot muds: the warm water and clays accompanying the flow of the clay and coming from the bottom as juvenile origin.

Sincerely

Sorry Sir Bayan Hussien , but I could not understand your reply. I am interested in finding Specific Heat at Constant Pressure Value for Superheated Steam of pure water (boiling). Is your reply related to this term?

Specific heat is defined as cp=dh/dT at constant pressure. You can take any steam table, and use finite differences:

cp(T, p) = [ h(T+dT/2, p) - h(T-dT/2, p) ]/dT

Thank you Sir

You can Use EES or Refprop software. However you need know that the CP assumption for steam is not allowable in all the ranges. In addition you can sometimes your thermodynamic properties.

The specific heat value varies with temperature and pressure. High pressure or temperature values lead to higher specific heat value. However, there are three ways to answer your question.

First: Use interpolation to evaluate enthalpy from the steam table then calculate specific heat.

Second: Use specialized software to evaluate thermodynamic properties.

Third: Kindly read the manuscript titled “Expressions for Thermophysical Properties Of Superheated Steam”.

You can try an specific software to graph this information. I use EES and verify with coolprop tool for matlab. Also, the help tool of these programs usually have an available explanation containing bibligraphic references

I suggest you define a particular equation of states(EOS) and then use the ASPEN HYSYS software to make different variations to attain your cP value.

You can use a software/library like:

Refprop.

EES.

Coolprop.

The last one is free to use: http://www.coolprop.org