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Why do you need to start this Stirling engine by hand?

  1. Oct 29, 2011 #1
    1. The problem statement, all variables and given/known data
    Why do you need to start this Stirling engine by hand?
    images?q=tbn:ANd9GcQaGjzR2PQxTMyoMEiQsoreyznqLSJoiU5iKBZ6iECe0c2Tz8dt.jpg

    2. Relevant equations

    N/A

    3. The attempt at a solution
    there is not sufficient power at first to overcome the inertia, so external work in the form of pushing it by hand is needed. however once started the momentum of the flywheel keeps the engine running?
     
    Last edited: Oct 29, 2011
  2. jcsd
  3. Oct 29, 2011 #2

    I like Serena

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    Welcome to PF, mh1985! :smile:

    Just like a regular engine, the Stirling process consists of 4 phases.
    In only 1 phase does the engine actually generate power.
    The flywheel keeps the engine running through the other phases.
    (That's also why a regular engine needs a starter motor.)

    I suspect that if you bring the flywheel in the right position, the engine should be able to start itself when heated.
     
  4. Oct 30, 2011 #3
    Thanks for the response, and the warm welcome!
     
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