- #1
kandelabr
- 113
- 0
Hello,
I am looking for a real gas equation of state for air, if possible a MATLAB script. I am working on pressures up to 500 bar and to 500°C.
The thing is that I not only need a p-v-T relation, I also need to calculate work done by compressed air and heat that is involved in warming/cooling at these pressures and temperatures.
I know the TEST apps, but I need the equations (or tables) so I can write my own MATLAB script.
I also found the document that is attached to this post (I downloaded it for free two days ago, but now I can't find the link o.0 ), but I don't understand a thing. Why Helmholz free energy? And about the equation for Cp/R on page 6, why not simply Cp? Is R constant or not? Why?
Thanks,
kandelabr
I am looking for a real gas equation of state for air, if possible a MATLAB script. I am working on pressures up to 500 bar and to 500°C.
The thing is that I not only need a p-v-T relation, I also need to calculate work done by compressed air and heat that is involved in warming/cooling at these pressures and temperatures.
I know the TEST apps, but I need the equations (or tables) so I can write my own MATLAB script.
I also found the document that is attached to this post (I downloaded it for free two days ago, but now I can't find the link o.0 ), but I don't understand a thing. Why Helmholz free energy? And about the equation for Cp/R on page 6, why not simply Cp? Is R constant or not? Why?
Thanks,
kandelabr