@cleric022684 This engine is just a small demonstrator to show that one can make such an engine that produces power. A practical engine could be of similar size or a bit larger but would require the air it contains to be pressurized. This design would need to be modified and built of suitable materials (stainless steel) in order to do this. Such an engine might be a good portable power source useful to charge electronics using local biomass in a small woodgas stove.
@mikerushford The stack is random orientated fibers since it is 0000 steel wool, the kind you get at any hardware store. Wish I could give you an accurate number for the density. Roughly cut a 1 cm thick disc as it comes in the package then compress to about 1 mm.
@andy232005 Ha, that's true. Though it doesn't look it this engine does use the stirling cycle. The gas inside is oscillating like a piston so fast you can't see it but you can hear it, at about 1000 Hz, that's around a high C. Cheers!
@Stirlingsound I know you under standing of these engines is far better than mine my comment was quick and thoughtless really great job would love to see more of your videos that's why I have subscribed could you teach me how to build a Stirling Engine that turns a flywheel?
@andy232005 specallez has a good tutorial for a coke can beta. He's even got it running a generator. approtechie has a great engine made out of a stainless steel drink can but no tutorial though all the parts are shown and you can probably figure it out.
@barumman Thank you very much. Your own work is fantastic. I hadn't yet seen the recent Thermomechanical generator you had built until today, though I had seen the one posted a while back.
@Aviator168 For this engine it would be tough to calculate. For engines like this one (traveling wave acoustic stirling engines) the efficiency is very good, approaching 40% of Carnot, I believe. That's pretty darn good for an engine with no moving parts. Standing wave thermoacoustic engines, on the other hand, are not very efficient (this includes thermal lag engines, and lamina stirling engines .)
@Stirlingsound Why do people say "lamina"? I think someone heard a british guy try to say "laminar" and thought thhe was saying "lamina." Say "laminar flow" instead because that's the real name.
The sound track is definitely lined up correctly. I think what's happening is that there is a drop off in amplitude but it's tough for us to hear it with a poor quality sound track. There just isn't enough power to oscillate the brass disc of the piezo, but almost the same amplitude manages to leak from the engine. Could also be that the frame I have the piezo set into is a bit loose so that the whole frame is vibrating rather than just the piezo. Thanks for the interest!
Why do you suppose the LED's go out at 2:08 even though the audio sounds like it is at a high frequency and amplitude? Is the audio track in this clip off by chance?
hello to all how r u i think that u r fine ok so my question is this that i wana help about stiriling engie so plz contact with me at this email address rokeyboy23@yahoo.com plzzzzzzzzz help me
this is basically a fire alert which alerts "TOO LATE" :D
vanzonhl 1 week ago
@vanzonhl LOL exactly! Don't know why the comment was deleted. That wasn't me.
Stirlingsound 1 week ago
@Stirlingsound : i think i deleted the first try myself, there was a typo :)
vanzonhl 1 week ago
Comment removed
vanzonhl 1 week ago
how would you use thois?
cleric022684 2 weeks ago
@cleric022684 This engine is just a small demonstrator to show that one can make such an engine that produces power. A practical engine could be of similar size or a bit larger but would require the air it contains to be pressurized. This design would need to be modified and built of suitable materials (stainless steel) in order to do this. Such an engine might be a good portable power source useful to charge electronics using local biomass in a small woodgas stove.
Stirlingsound 2 weeks ago
@Stirlingsound Its ineffecient.
bakothegreat 1 week ago
ok ow ow OWWWWWW!!! MY EARS!!!!!!
lolziloveminecraft 2 weeks ago
Press 3-4-5-6-7-8-9 and mix those numbers to make music
Chrunchstick 1 month ago
Is the stack made in pin or sheet form?
mikerushford 1 month ago
@mikerushford The stack is random orientated fibers since it is 0000 steel wool, the kind you get at any hardware store. Wish I could give you an accurate number for the density. Roughly cut a 1 cm thick disc as it comes in the package then compress to about 1 mm.
Stirlingsound 1 month ago
Thats so fast I could hardly see it move.
andy232005 2 months ago 3
@andy232005 Ha, that's true. Though it doesn't look it this engine does use the stirling cycle. The gas inside is oscillating like a piston so fast you can't see it but you can hear it, at about 1000 Hz, that's around a high C. Cheers!
Stirlingsound 2 months ago
@Stirlingsound I know you under standing of these engines is far better than mine my comment was quick and thoughtless really great job would love to see more of your videos that's why I have subscribed could you teach me how to build a Stirling Engine that turns a flywheel?
andy232005 2 months ago
@andy232005 specallez has a good tutorial for a coke can beta. He's even got it running a generator. approtechie has a great engine made out of a stainless steel drink can but no tutorial though all the parts are shown and you can probably figure it out.
Stirlingsound 2 months ago
Very very interesting, Thanks for sharing, :)
barumman 4 months ago
@barumman Thank you very much. Your own work is fantastic. I hadn't yet seen the recent Thermomechanical generator you had built until today, though I had seen the one posted a while back.
Stirlingsound 4 months ago
So now we know what they used during Desert Storm!!!
Cool machine! :)
ChargerMiles007 4 months ago
EAR RAPE! DX
nice video owo
toxicwar 6 months ago
There's good information about these engines at Los Alamos Thermoacoustcs and at Aster Thermoacoustics
Stirlingsound 7 months ago
What is the efficiency of this engine? I heard that it is not that high.
Aviator168 7 months ago
@Aviator168 For this engine it would be tough to calculate. For engines like this one (traveling wave acoustic stirling engines) the efficiency is very good, approaching 40% of Carnot, I believe. That's pretty darn good for an engine with no moving parts. Standing wave thermoacoustic engines, on the other hand, are not very efficient (this includes thermal lag engines, and lamina stirling engines .)
Stirlingsound 7 months ago
@Stirlingsound Why do people say "lamina"? I think someone heard a british guy try to say "laminar" and thought thhe was saying "lamina." Say "laminar flow" instead because that's the real name.
JaycubL 6 months ago
The sound track is definitely lined up correctly. I think what's happening is that there is a drop off in amplitude but it's tough for us to hear it with a poor quality sound track. There just isn't enough power to oscillate the brass disc of the piezo, but almost the same amplitude manages to leak from the engine. Could also be that the frame I have the piezo set into is a bit loose so that the whole frame is vibrating rather than just the piezo. Thanks for the interest!
Stirlingsound 7 months ago
Why do you suppose the LED's go out at 2:08 even though the audio sounds like it is at a high frequency and amplitude? Is the audio track in this clip off by chance?
BuildSomethingUseful 7 months ago
@BuildSomethingUseful
Stirlingsound 7 months ago
I like this video! Is this a traveling wave engine? is there a regenator in it?
simi112 9 months ago
@simi112 Many thanks. Yes this is a traveling wave engine. There is a regenerator made of steel wool inside the engine.
Stirlingsound 9 months ago
great work !
i will be interested for the plans also
best regards
SWINGREGORY
SWINGREGORY 9 months ago
hello to all how r u i think that u r fine ok so my question is this that i wana help about stiriling engie so plz contact with me at this email address rokeyboy23@yahoo.com plzzzzzzzzz help me
waqassgg1 9 months ago
That's really nice. It looks like its made out of standard hardware, are there any plans for it ?
specallez 9 months ago
@specallez Plans will be coming soon. Yes, most all of the hardware is standard. Thanks for the interest and kind words.
Stirlingsound 9 months ago