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Adiabatics with OTTO CYCLE

  1. Nov 14, 2009 #1
    hey guys, just wanted to know, in the graph of the OTTO cycle in the link

    http://www.qrg.northwestern.edu/ther...Pv-diagram.gif [Broken]

    are stage (2-3) and (1-4) adiabatic or not, if so why are they

    the reason i ask is that i have a graph showing that these stages are adiabatic, however, adiabatic processes are where no heat is exchanged QIN = 0
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Nov 17, 2009 #2

    Redbelly98

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    Your image link is not working.
     
  4. Nov 17, 2009 #3
    In the ideal otto cycle

    The expansion and compression are isentropic (reversible adiabatic).
    The heat addition and heat rejection are isochoric (constant volume processs)
     
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