Stirlingengineforum.com

Thank you guys so much for all the great comments and suggestions! My next steps would be 1.add a fly wheel; 2.insulate the connecting copper conduit; and 3.add some material to displace the top dead volume in the cylinder. I'll update when I'm done with those and how it turns out. In the meantime, ...

Why is your "cold side" 125°F ? Various types of Stirling engines will (sometimes) be able to run "free piston" or without a flywheel. This may not be true of Alpha type engines. I've never known any Alpha type Stirling to run without a flywheel, but I don't know if anyone ever ...

Pictures of the engine would help. If your compression ratio is really 2.3:1, then your thermal ratio is far too low considering conventional thinking. Larger diy Alphas are notoriously hard to get running. Did you model an existing engine? What is your cylinder angle? Do the rods share a common cr...

Hi All, I built an alpha-type Stirling engine in a V-shape cylinder configure as a class project with the following specs: Bore: 1.125'' Stroke: 2'' Compression: around 2.3 Crank case pressure: 1 bar Working fluid: air Hot side temperature: 450F Cold side temperature: 125F Crank offset: 90 degree Wh...