- #1
Saladsamurai
- 3,009
- 7
I am just confused as to how to evaluate the term sa=specific entropy of air
I have reduced an entropy balance to the following:
[tex]\sigma=\dot{m_{a3}}(s_{a3}+\omega_3s_{v3})-\dot{m_{a2}}(s_{a2}+\omega_2s_{v2})-\dot{m_{a1}}(s_{a1}+\omega_1s_{v1})[/tex]
I know how to evaluate sv and how to evaluate entropy differences but the air has three terms, so how can evaluate it?
Here's a schematic.
I have reduced an entropy balance to the following:
[tex]\sigma=\dot{m_{a3}}(s_{a3}+\omega_3s_{v3})-\dot{m_{a2}}(s_{a2}+\omega_2s_{v2})-\dot{m_{a1}}(s_{a1}+\omega_1s_{v1})[/tex]
I know how to evaluate sv and how to evaluate entropy differences but the air has three terms, so how can evaluate it?
Here's a schematic.