How does a stirling generator work?

Question: How does a stirling generator work?

Answer: To understand a Stirling generator you have to understand how a Stirling engine works. Essentially a Stirling engine operates based on a closed chamber containing a gas (usually just air) that is heated at one end and cooled at the other. When a gas heats or cools it also expands and contracts. This expansion and contraction powers pistons that drive mechanical work. Now that you have the basics imagine a wheel that rotates from these pistons pushing and pulling on it. A basic electrical generator uses coils of wire rotating within a magnetic field to produce electricity. If you were to wrap the rotating wheel with copper wire and suspend it between magnets you would now have a Stirling engine generator. It really is as simple as that. Below is a video showing this setup except the magnet is being rotated within the wiring instead of the opposite situation. The spinning part in the center between the two wheels is a magnet and the red surrounding it is the wiring.

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