While optimising the Stirling engine shown below, Pete decided to complete another one he has built. Here are some videos of this speeding baby in action.
It's heat source is a simple flame not much larger than that of a candle. A great way to charge a cellphone, as one of its many possible applications.
Here we get it started by adding the flame to the hot side of the engine, waiting a tad for pressure to accumulate, and then giving it a gently spin to get the motion process going.
Here one sees it running at high speed. One has to actually stop it some some point in fear that it would cause mechanical damage. These are all issues to be resolved while evolving such a piece of machinery.
A video clip of the Stirling engine running at high speed, with some close-ups showing some of the mechanics involved
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