Stirlingengineforum.com

Longboy, The atmosphere of Mars is well below that of earth, but it is not a vacuum. The average Martian mean surface pressure is 600 pascals (0.087 psi), compared to Earth's sea level average of 101.3 kilopascals (14.69 psi) source WIKI . Methods exist to run a Stirling in an isolated chamber and ...

jimlarsen wrote:NASA gets Stirlings to work on satellites, so I am guessing Mars would be easy.

......can you post a reference Jim, I'd like to see how they did it!

Longboy: I am not talking about a hot air engine, but a bona fide Stirling engine, with the working fluid contained inside. I'm thinking argon would be best, since it's fairly common in the Martian atmosphere. .......you "are" talking about a hot air engine if you mention Stirlings. Using...

theropod2 wrote:

Longboy wrote:........Stirling does not work in a Martian atmosphere.

Longboy,

Excuse me?

Why not?

RS

...........That would be because Stirling doesn't work in a vaccuum. If you know Stirling principle, you will know how atmospheric pressure on Earth allows Stirling engines to run.

........Stirling does not work in a Martian atmosphere.

I think the hog engine is an alpha type engine ? Not clear but it looks like it. Those don't have displacers, they have two pistons that are hot and cold. A displacer type engine won't work if it's not airtight. .........The HOG Stirling is a Gamma type engine. That is a displacer in the horizontal...

Thanks Goat. Ya I'm familiar with increasing power levels with the same displacement in I/C. Getting to have the best of both worlds with tubo dirrect injected 4 cylinders over 200 HP and getting 30 plus MPG. Its all about pumping air in and out where as in Stirling......its about keeping it in!

.........if you have read the totality of this post subject you can see that Tom & I went several rounds in defining terms including "work". My position revolves back to you in what would be work defined to you for an engine that is running. An engine that does drive a load by means of...

I was thinking it would be cool to use a light-collector Stirling engine to power a camera in an unmanned high-altitude balloon (like this: http://news.bbc.co.uk/1/hi/england/west_yorkshire/8587749.stm ), but reading this thread I'm worried that it wouldn't work. I've not built any Stirling engines...

Hi, Been doing some research regarding the ratio between the displacer cylinger and the power cylinder. I've been unable to find the ratio between the diameters. I know the swept volume is to be 1.33 percent. but what diameter difference would there be? The obvious difference would be a change in h...

.........Even if it is a smooth bore it is not glazed and has a flat finish apperance. It would grind your power piston up into powder. A sleeve of copper or brass tubing within would let a piston live.

........Your stroke length is determined by the displacer and cylinder length. Example: if your cyl. is 4 in. long and the displacer is 2 1/2 in. long, the difference of 1 1/2 inches sets your parameters for the stroke. Here a 1 in. stroke will give a 1/4 gap at each end of the stroke so it doesn't ...

............They're giving some ad hype in the description like an infomercial. At $2G a copy there gonna sit on the shelf for ages. Simple to build with the fewest parts of the hot air engines they run nice. You can take a look at the "Rijke tube" for an explaination on how sound energy c...

....."Reading a bunch of golf magazines.....does not make one a better golfer". (from "The Court-Martial of Billy Mitchell") We kept it going for two weeks but it was time to end and we posted our final thoughts yesterday. Got totally irritated with each other about three of thos...