First Sterling Finally Running

Discussion on Stirling or "hot air" engines (all types)
mhafele
Posts: 2
Joined: Sun Oct 08, 2017 10:27 am

First Sterling Finally Running

Postby mhafele » Sun Oct 08, 2017 11:00 am

Runs good with propane torch. Any tips on running with less heat? Or how to get it to run longer without over heating?

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mhafele
Posts: 2
Joined: Sun Oct 08, 2017 10:27 am

Re: RE: First Sterling Finally Running

Postby mhafele » Sun Oct 08, 2017 11:20 am

mhafele wrote:Runs good with propane torch. Any tips on running with less heat? Or how to get it to run longer without over heating?

Image

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Here is video link.
https://youtu.be/oOg6BuUzP78

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thanh-cuibap
Posts: 143
Joined: Tue Sep 06, 2016 8:09 am
Location: Việt Nam

Re: First Sterling Finally Running

Postby thanh-cuibap » Sun Oct 08, 2017 10:21 pm

Hi mhafele !
1 / hot cap should be as thin as possible ( thickness of hot cap my stirling :about = 0.5 mm )
2 / between hot and cold zone should be insulation ( insulation :you can use teflon...)
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https://www.youtube.com/watch?v=e850NKFEFW4

Ian S C
Posts: 1953
Joined: Thu Dec 02, 2010 5:15 am
Location: New Zealand

Re: First Sterling Finally Running

Postby Ian S C » Mon Oct 09, 2017 4:22 am

You could try a spirit burner with a small wick.
It's difficult with this type of motor lay out, but a belt driven fan can work well.
Ian S C

boydhouse
Site Admin
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Location: Concord California
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Re: First Sterling Finally Running

Postby boydhouse » Mon Oct 09, 2017 5:53 am

That is a beauty! Absolutely.

Darryl

Trevor
Posts: 164
Joined: Sun Nov 06, 2016 4:07 am

Re: First Sterling Finally Running

Postby Trevor » Mon Oct 09, 2017 7:22 pm

High mhafele
Damn nice engine you built - It appears you do have insulation between the hot and cold side of the engine.
I think that the cooling area (assuming it is aluminium) is a little small. With that much heat the cooling fins can't get rid of the heat. You could try using a small fan next to cooling side or make a water jacket instead of fins.
I do love the way you have made the engine with the generator - Well Done
Regards Trev

Ian S C
Posts: 1953
Joined: Thu Dec 02, 2010 5:15 am
Location: New Zealand

Re: First Sterling Finally Running

Postby Ian S C » Tue Oct 10, 2017 3:52 am

With a generator on the motor, it I possible to use a small electric fan from a computer, but these are generally 12V. one of my motors has one fitted to it's radiator.
Ian S C
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