1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Maximum work delivered by a turbine

  1. Dec 2, 2015 #1


    User Avatar

    Hi everyone :
    I have a question: how to calculate the maximum work delivered by a turbine. Steam input T and pressure are given plus the outlet pressure only. Using Peng-Robinson equation of state. Adiabatic process.

    I tried to find outlet temperature by trial and error using Peng-Robinson EOS until delta S (S2-S1)=0, (S is entropy) . but delta S never approached 0 . its final value was around 21 j/mole.K . I used it though to calculate delta H (H2-H1) because delta H = work . (H is the enthalpy)... but the answer was wrong very wrong >> I used MATLAB for my calculations . I'm sure of the equations and everything . So is there another way to calculate the work?
    and any one knows why delta S didn't even approach 0 !!

    Thanks in advance :) ..
  2. jcsd
  3. Dec 2, 2015 #2
    Show us what you did to find the conditions at which ΔS=0.

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted