Stirlingengineforum.com

Hey BTYork: For the overheating rings issue: (and you’ve probably already been there but if not,) look into heylandt ? (spelling) crowns - “hot caps” with which you add a thermally isolated extension to the hot cylinder to keep the heat away from the bearing parts. Bumpkin I've seen those on many e...

Contribute yourself too on it. But was that NDA data tested or only idea ? There is a ton of data on stirling engine which could be classified as secret, but rarely shows any value. If it was not proven by more than three designers - it is too wrong to start with. Its one of those things that has b...

I rewrite from old FORTRAN code found in some scholar papers. I can run numbers for you. I need following data : Compression space, expansion space + dead volume of each of them. On heater / cooler i need number of tubes / slots, length and cross dimesion. For regenerator - housing id / od, length ...

That's awesome, did you create this code? Is it available?

Sorry, I don't have the material data sheet for the rings. They are Carbon finber filled teflon from https://www.hitechseals.com/index.asp?lang= and yes, they are oring backed. The oring is Viton, bringing the max temp for the seals down to 200C. I do have all of the geometric data, I modeled the en...

Hey staska, Those look great! It seems as though we're on the right track with the high temperature graphite/ptfe rings. Our experienced friction may just be the clearances involved. Our tolerances are super tight, and the rings like a 0.001" gap. I've designed the cylinder and piston undersize...

Hi all, I'm new here so I'll give a brief intro, I got my masters in mechanical engineering working on Stirling engines, specifically doing flow analysis' through regenerators. I'm now working out of the same university lab prototyping an alpha engine. We have some funding for the prototyping, with ...