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Pulsation damping in a heat engine

  1. Nov 13, 2009 #1
    Hi all,

    I have recently been shown a diagram of pressure versus piston position for a particular heat engine. The system is based on a Joule cycle and is designed to take a drive stroke at constant pressure.

    Now what I'm trying to understand is, the pressure appears to 'wobble' slightly during the drive stroke, leading to a loss in efficiency. I understand that this is due to some kind of resonance occuring within the pipe, and could possibly be solved with pulsation dampers.

    Can anyone provide me with a better explanation of the phenomenon - is it well documented? - and ideally provide me with a few references for further reading.

    Many thanks.
     
  2. jcsd
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