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!

Work input/output in adiabatic process

  1. Jan 4, 2012 #1
    I have to find the max cycle pressure, max temp, work input and output for an engine.

    I have been given the initial air pressure, temp and the volume of the cylinder.

    Fuel is added at 2.5MJ/kg

    For the air i have Cv, the index (1.4) and an R value of 287 J/kg K (not sure about this value)

    I calculated the max pressure using PV^1.4 = const.
    For max temp i used PV/T = const.

    1) Not sure if I have used the correct method for calculating the pressure and temp

    2)Not sure how to calculate the Work input/output. Is the W=PV equation correct?


    Would this equation work W=(P2*V2 - P1*V1)/n(1.4)-1
     
    Last edited: Jan 4, 2012
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted



Similar Discussions: Work input/output in adiabatic process
  1. Output Work (Replies: 3)

Loading...