Search found 35 matches

by alpha stirling
Wed May 02, 2007 1:37 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: help with designing
Replies: 2
Views: 5985

Hi! First of all we would need to know just what kind of engine are you planning? Alpha, Beta or Gamma? High or low temperature difference? The expected power output? If you wan't an engine that has all that information already measured and drawn, purchase plans and build one from those. "From ...
by alpha stirling
Wed May 02, 2007 1:31 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Alpha stirling engine project
Replies: 5
Views: 8241

Hi! For your information, I live in the EU. The friction of my mechanical parts is as low as it can be by this sitting. All of the joints have ball bearings mounted, and the mass of the moving parts is as low as possible without compromising strength. My only problem now it so make pistons that are ...
by alpha stirling
Wed May 02, 2007 1:17 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: increasing displacer 'dwell' time
Replies: 14
Views: 21361

Hi! The electrical system is out of the question because of it's low efficiency. You easily understand it by considering the difficulty our small engines have with friction losses. Furthermore, there's no point in large scale gamma stirling, since it has very low power-to-weight and power-to-volume ...
by alpha stirling
Tue May 01, 2007 1:34 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Alpha stirling engine project
Replies: 5
Views: 8241

Those glass-graphite sets would be fine, but they only ship to US it seems. Besides, I have had problms with the customs in the past for ordering "extraordinary items". My brass cylinders are fine, no complaints about them. It's only the piston that give me gray hair. Polyacetal won't work...
by alpha stirling
Sun Apr 29, 2007 10:32 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Obtaining parts
Replies: 2
Views: 6352

I have gotten mine from local scrapyard. Some scrapyards (like this one) only has different metals sorted out in huge piles, the others, on the other hand, sort pipes, bars, sheets etc. to separated piles. It is usually very cheap to buy materials from scrapyard as they only charge you the stock scr...