25 watt Stirling for sale

Discussion on Stirling or "hot air" engines (all types)
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mikeptag
Posts: 17
Joined: Mon Oct 21, 2013 7:41 pm

25 watt Stirling for sale

Post by mikeptag »

derwood
Posts: 114
Joined: Sat Dec 11, 2010 10:15 pm

Re: 25 watt Stirling for sale

Post by derwood »

This is just my opinion. I don't think an engine that size can produce 25 watts without pressure.
Aviator168
Posts: 308
Joined: Tue Feb 08, 2011 2:29 pm
Location: Brokeville, NY. USA

Re: 25 watt Stirling for sale

Post by Aviator168 »

It is not difficult to get a good estimate if the builder post the design of the engine and the material used.
mikeptag
Posts: 17
Joined: Mon Oct 21, 2013 7:41 pm

Re: 25 watt Stirling for sale

Post by mikeptag »

Doesn't it look almost exactly like this engine? This video claims 100 watts
http://youtu.be/5pdqDQwehlk
larsinist
Posts: 123
Joined: Sat Mar 08, 2014 10:01 am
Location: Northern Norway

Re: 25 watt Stirling for sale

Post by larsinist »

where can i find building plans for this engine???

Lars
Aviator168
Posts: 308
Joined: Tue Feb 08, 2011 2:29 pm
Location: Brokeville, NY. USA

Re: 25 watt Stirling for sale

Post by Aviator168 »

No way that engine can produce 100w.
Ian S C
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Joined: Thu Dec 02, 2010 5:15 am
Location: New Zealand

Re: 25 watt Stirling for sale

Post by Ian S C »

Perhaps there is supposed to be a decimal point some where like 2.5w, 10.0w. I,m not too sure on the 5000rpm either, I think my all time high is about 2500rpm, speeds of 5000rpm and greater have be done, but that motor is fairly basic if the hot end is anything to go by.
Aviator168
Posts: 308
Joined: Tue Feb 08, 2011 2:29 pm
Location: Brokeville, NY. USA

Re: 25 watt Stirling for sale

Post by Aviator168 »

Ian, are you referring to that utube video with Dan Rojas? That's one of Andy Ross's engines. The thing about stirling engines is that it is difficult to achieve any meaningful power without a water jacket. They might seem to have high power output when they are first run. Gradually, the cold cylinder soaks up the heat and temperature starts to go up and the thing becomes a dog.
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