TRANSPARENT Stirling Engine (Laminar Flow)

[jdflyback]

@28kingIV it would The best if it was air tight but if you look up on YouTube tin can stirling engine you can see how air tight they make there's and when it gets to a point to where it won't work. Hope this helps

[dagoanmo]

what is the black thing at the right

[MilanKarakas]

WOW! The best Stirling engine I ever saw on the YouTube. Excellent work.

[MrSontaran]

Hi very nice. How is the flywheel bearing constructed

[MrSontaran]

Very Nice. How is the bearing on the flywheel constructed? Hard to see from the video

[annihil8ted]

Can you please explain how this engine works. I understand how the flame heats the air which expands and piston but that where i'm confused. Seems to me as soon as max extension is reached, the engine would stop. Am i missing something here? Does air some how magically leak back out for the piston to go back?

[mowerofdoom]

Hi.

Air is heated in the heated side (!) and compressed slightly. Air expands, pushing the piston back. the hot air is then sucked into the cold side where it contracts (piston travelling away from heat source). Flywheel energy then continues to rotate due to inertia and pushes cold air back into hot side for re-heating. There is a slight lag between transferring air and heating/cooling so the engine continues to run. Hope this explains.... :-)

[omagunna]

@annihil8ted im just as confused as you are mate wtf!

[ThePerrynator]

I'm amazed at how quiet it is.

[richieT737]

Very nice looking engine. Are the O rings around the piston rubber. I am surprised that you can get the low friction required using O rings or perhaps they are graphite. Thanks for the video.

[mowerofdoom]

Hi. The piston is a glass test tube running in a glass bore. The piston rod is connected to the test tube with a perspex plug which is held inside the test tube by o-rings. Glass on glass appears to have quite low friction - not sure if there is an 'air bearing' type effect going on too. Thanks for the comment! Cheers, Geoff.

[ninnicuringa]

Hi, i would like to know something..

1)what kind of glass is used?

2)what kind of FIRE? (candel? oil?)

3)there is VACUM or AIR in the cilinder?

4)what is that black thing in the right of the instrument,inside it?it seems metal..

thank you

[mowerofdoom]

Hi.

1. Pyrex (borosilicate) glass

2. Methylated spirit

3. Air - which is heated and cooled in the different zones to expand and contract it.

4. Thin black things are o-rings to seal between the tubes. The big black thing inside the hot end is wire wool - this is the regenerator.

[ninnicuringa]

Where can I buy this complete Engine? can you sell it to me? i need it! thanks

[orangmakan]

looks great...

[Julian3190]

awesome design, the transparency is extremely eye catching!

i just had a question as im trying to make a lamina flow stirling. what is the purpose for an airpot (that diameter change between hot and cold areas)?

[mowerofdoom]

Thanks!

If I understand you correctly, you are asking about the constriction between hot and cold ends.

I have seen a lot of debate over the function of this feature and have no data to make any valid comments other than:

1. Size is important.

2. If you don't have it, it won't work.

3. It will still work, even though we may not know exactly what it is for!

This may hold true to other things too!!!

[Julian3190]

ahh i see i see ill try to incorporate it in my attempt lol thanks. great job once again.

[budsiskos]

hi, i was wondering how you built your burner, what did you use and what's the fuel. thanks

[mowerofdoom]

The burner is made from 20mm copper tubing with compression type 'stop' ends. Two small pipes are silver soldered into the top. One for the wick and one for filling. The fuel is methylated spirits.

[gravelbar]

Very nice. I tried something like this many years ago, and was lucky I was looking the other way when it exploded and all the glass ended up in only one side of my face!

[mowerofdoom]

Erk! Thanks for the warning.

[luketrashtalker]

Good job. The most interesting part of this design is the fact that the flywheel is parallel to the floor which means it's not fighting gravity. This is an idea I've thought about before and I've never seen it done anywhere else. The engine must be more efficient because of this variation in design. Very interesting.

[mikeb1444]

But then you end up with friction from gravity acting on the side of the Flywheel.

[mowerofdoom]

Also, there is more friction on the cylinder wall from the sliding piston. You gain it here, you lose it there!!

[mikeb1444]

We're gonna' have to pull out the Physics and calculus books for this one.

[mowerofdoom]

Go for it!

[kaskpatrasket]

Nice!

I was actually thinking of making a seethru stirling.