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Free piston Question

Posted: Tue Mar 15, 2016 5:28 am
by burnit0017
[youtube]https://youtu.be/dOSGpzGhrJQ[/youtube]

@ 1:09, what is meant by no dead volume inside displacer?

Re: Free piston Question

Posted: Thu Mar 17, 2016 5:14 am
by tibsim
Air is a spring. Any space (air), what we does not use (heating- cooling) or intentionally as a spring (on good frequency) it worsens the efficiency. Like when you're trying to ride a bike but springs are under your feet.

Re: Free piston Question

Posted: Sat Jun 25, 2016 1:08 am
by jamesjohnson5551
Thanks for sharing. The Stirling free-piston system has many attractive attributes. Specifically, the Stirling cycle is the most efficient thermodynamic heat engine cycle that exists. concepts considered for SP-100 selection, the Stirling cycle has the highest efficiency for the same given heat input and heat rejection temperatures. Stirling system employs the gas bearing - either hydrodynamic of hydrostatic - there is the potential for long life and high reliability.