The sign convention is different in the UK to the US isn't it? So if I follow this and just invert the signs I should be sound? Also just to check... point 2 just before the reheat shouldn't fall into the two phase (latent heat) section should it? I think that's where I'm going wrong because I'm using S1=S2=x2sfg+sf and then h2=(1-x2)hf+x2hg to get h2... should I just take hg from the steam tables at P2 for h2 instead since we want to avoid droplets forming in the turbines?
Great lecture, but for T4, I can't find a value in a table (the value of S is to low) Are you looking to find T4 at Superheated or Saturated H2O Table?
+Mechanical 121 isn't reheat between states 2 and 3? Other videos may have more explanation. Might look for other videos at engineering.utsa.edu/~rmanteufel/
Even though i'm in a superior university , we don't have this quality of teaching things, I really appreciate you're efforts
Dude, excellent video! Right to the point. I really struggle with Thermodynamics
Fantastic job teaching this material! Thank you very much!
why qc= h4 - h3 instead of h4 - h5
I think he made a mistake there
This helps SO MUCH, thank you!
It is a very good lecture :) thank you very much.
thank you for the video
The sign convention is different in the UK to the US isn't it? So if I follow this and just invert the signs I should be sound? Also just to check... point 2 just before the reheat shouldn't fall into the two phase (latent heat) section should it? I think that's where I'm going wrong because I'm using S1=S2=x2sfg+sf and then h2=(1-x2)hf+x2hg to get h2... should I just take hg from the steam tables at P2 for h2 instead since we want to avoid droplets forming in the turbines?
+Zachary Sylvester Ahh nvm the second part of my question... I should finish the vid before i comment lol.
What to do if P2 is missing?
what is optimize pressure
qc shud be h5 minus h4????
Qc= h5-h4. that it should be
@@masterkaiser2589 qc= h4-h5 is correct.
Great lecture, but for T4, I can't find a value in a table (the value of S is to low) Are you looking to find T4 at Superheated or Saturated H2O Table?
+Randall Manteufel thank you much! you really helped with my homework btw
how to find T(temperature) at point 2,4 & 5
T2 = T(P2,S2=S1), isentropic expansion through first turbine
T4 = T(P4=P5, S4=S3), isentropic expansion through second turbine
T5 = Tsat(P5)
Randall Manteufel thanks :)
in our discussion Qsg=(h1+h3)-(h6+h2)
our instructor included the heat or enthalpy from the T1
well never mind it was corrected the end
This discussion is reheat. Not superheat.
you didn't discuss reheat :(
+Mechanical 121 isn't reheat between states 2 and 3? Other videos may have more explanation. Might look for other videos at engineering.utsa.edu/~rmanteufel/