- #1
Carbon273
- 17
- 4
For a throttling valve C.V analysis, I am wondering why is it known that temperature remains the same for ideal gases. I understand that using the energy balance equation, I end up with h1=h2. Pretty simple so far. By breaking down enthalpy into its components u1+P1v1 = u2+P2v2 I realized that we have an equation set with 1 DOF. If I were to increase internal energy from inlet to outlet, a corresponding decrease in flow energy would occur and vice versa. If I were to increase flow energy, It would lead into a decrease of internal energy, which is usually accompanied by a decrease in temperature (measured by the joule thomson coeeficient) from my understanding. However, it is known that for ideal gases, temperature remains the same as it is constrained (or is a function according my textbook) by enthalpy h=h(T). The book did not seem go into much detail so here I am.
Thanks in advance.
Thanks in advance.