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Diesel cycle

  1. Apr 23, 2012 #1
    1. The problem statement, all variables and given/known data
    given:
    diesel cycle,
    P1V1 P2V2 P3V3 P4V4 - all known
    T1 = 20°c
    specific heat capacity constant pressure = 1000j/kgk
    specific gas constant = 287j/kgk
    compression index = 1.4

    2. Relevant equations
    heres where i am stuck!


    3. The attempt at a solution
    Hi all, im unsure where to go with this one. im guessing that i need to work out T2.T3.T4, but cant find in any of my notes where any of the γ or R come into play or how to get T2T3T4?. i have already calculated the work done for each stage in a previous part of the question so i have that. Just not too sure on where to go from here to calculate the efficiency of the cycle?
     
  2. jcsd
  3. Apr 23, 2012 #2

    jack action

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