Stirling Engine Experiment

I tried to make my engine to work well, but ...

[@tzmdomeguy]

Wow, I am completely impressed ! THis is soooo inovative. It is nice to see someone thinking outside the box. Seems that most of the comments are people trying to put this idea "back into the box" I think it is great just the way it sends a strong message that conventional thinking IS NOT THE ONLY ANSWER ! ! !

[@ronhenry2025]

I like. If you replaced the individual marbles with a sliding displacement "capsule" this would be much more stable. The marbles bouncing off each other destroys your displacers function.

[@josephnr]

Brilliant ! This is the video that explains the Stirling engine best !! Thank u !!

[@chemopia]

This is a great demonstration because it shows the speed that the power cylinder reacts to the internal gas temperature change. I actually like how the syringe reacts immediately yet the marbles are slow to move back and forth. Excellent! I want one.

[@coldernice5523]

Bill Crawford

[@JanBinnendijk]

i only recently learnt how a stirling engine actualy works.. and this is a very cool version.. you could put the balls in some sort of "Cage" to keep them togehter.. one ball as someone mentioned, will not work i think, because it has too little displacement.. the more air you move to the cold side, the more power it will generate

[@devinostrom5195]

I've make one of these before. If your going to use marbles try removing at least two and let it warm up. We found it ran better if restarted after it ran for a few minutes. Also we used a plastic Chapstick tube filled with melted fishing weights which works good as long as you only try a little at a time. This is really cool to show kids.

[@aereone]

You just teach me the principles of system in a veey simple way, thanx so much

[@MRtrax1000]

I have been low key trying to understand stirling engines for years, but this video did it, amazing!

[@Nec0byte]

I like the elegant simplicity of your design. May I suggest attaching a crank to the axis of the tube, so it can impulse a flywheel, to obtain a more even movement?

[@nunya7502]

Elegant simplification by the way :)

[@LocurasPreepers]

Merry Christmas to all who read this message and prosperous 2017

[@AriLugones]

Happy 2018 for you!

[@daviddavids2884]

this appears to be a free-displacer design, but it relies on gravity to help move the heavy marbles/displacer. cheers

[@AirshipNorway]

On the left side was that fixed to the ground and so that the movment of the entire engine (up and down) actually made the serenge work as a piston? I cant see if there is something inside it that works as a piston or of the left side actually goes threw a black hole in the floor. Its great machine i loved it.

[@TheGrahamBrechin]

nice idea using the marbles as the displacer

[@hamidesh6455]

The mistake is that there were many balls , it's going to be better if you use one heavy ball instead .

[@p0wer5000]

Maybe try a medal weight or something I think it would help if your displacer was one piece...

[@realgroovy24]

2:23 VTEC just kicked in

[@zolikoff]

Look up the Stirling engine... the marbles act as the displacer piston. What's interesting is that this doesn't seem to work with less marbles. I've tried it and it only starts working with 4+ marbles.

[@rickharriss]

Put some loose wire wool in the bottom of the tube to act as a heat reservoir. This type of low energy Stirling need really really low friction - Generally this seems to be working quite well.

[@JustinAngle]

Nice visual. It could be refined, but I like it.

[@PaulSebastianM]

Balls. Pump. Long glass stick... Fire. Hmm!

[@azzym312]

What are you thinking? perv!

[@abhishekgourav6144]

hahaaa.......

[@uniflare]

Thats pretty cool! IS that ust some test tubs/srige/matbles and plain 80%nitrogen air?. Interesting :).

[@adfgfds]

Seems to be working pretty good to me man!

[@ivanlunaelizarraras]

hi, im trying to do one of these por my physics class but im not getting it right. As apiston im using a syringe and i heat the test tube but the syringe wont go up. Apparentely everything is sealed correctly and i dont know what else could be happening. can you give some tips??please.

[@er1chawk]

A glass syringe might involve less friction than a plastic one...not sure....

[@c0nstantin86]

actual experiment starts at 1:40. You're welcome!

[@nunya7502]

Is this shot on 8mm film?

[@p.a.p.865]

I tried the same device and it does not work. You need a careful adjustment of everything, especially the syringe (may be is a special glass syringe or something) and no leaks at all. Actually I am doubting if there is some trick on the video, like injecting air from the syringe side.

[@Claudiomarsantos]

I make too and not worked... I little air scape and don't work... Sorry but I don't it is really.. True or fake this video is a great work. Congratualations..

[@markkram1]

there is no trick. i needed to make this for school and after 6-10 hours of trying it finally worked. its a lot of fiddling until you find the right settings

[@denniskean3]

While some people choose to call this type of engine a stirling engine, this is more of a Thermoacoustic engine than anything else. The frequency for this TA engine is low because the load is high and the see-saw part is just a byproduct of the design, not really anything concerning the stirling cycle. The sterling cycle implies an orthogonal action and the marbles do not represent that. Orthogonality facilitates the heat transfer so that the temp descent does not lock up. Dennis

[@elteibhasabo]

other problem is the high friction power inside the piston (plastic syringe) i think it is very tight.

[@plarek1]

+‫الطيب حسب القوي‬allach snackbar

[@TV-mm5rk]

good explanation basically.

[@k.s.a.1667]

Smart, simply SMART!

[@XxscootskatextremexX]

maybe if you replaced the four glass marbles with a steel ball bearing it would work better

[@RAndrewNeal]

Reminds me of an oil derrick.

[@namara500]

OMG dude! This is the BEST engine EVER!!!!!!!!! :P

[@an0mie]

Awesome idea!

[@denniskean3]

The plastic syringe is not a cold sink. Heat has to traverse a path and what the glass gains in calories on the right has to be lost on the left. A plastic syringe does not provide enough sinking to do that, unless the syringe is made of glass. Come to think of it...is it made of glass? Is this a pre-1960s syringe??? Sure looks plastic to me! Dennis

[@technicalworldthegamecente3056]

very nice work dear...

[@andrevacchi3182]

what is the use of marbles??

[@Claudiomarsantos]

Isto não motor, é mágica... Uma seringa de plástico tranca, até com a mão fica difícil movê-la... O aquecimento do vidro o faz ficar mole, gruda as bolinhas... As bolinhas esquentam e, quando vão para o outro lado, levam o calor junto, ... Fiz vários mas a mágica que acontece no video, o movimento contínuo das bolas, não aconteceu para mim... Me falta saber alguma coisa ;( ... ~rrº Ótimo vídeo...!!!

[@stewmeat95]

put a crank shaft and run wheels or a fan

[@khalelo1]

wow completely impressed - If you can but construction plan would be great - thanks- Ibrahim

[@22jinevil]

Good Work Dude really

[@arielmilka6105]

This is a very good video

[@peterdrinkwater136]

Cool good job can u make a tutorial on how to make it

[@praveenk8725]

I want setp by step plz..

[@Noname_2014]

how this work?

[@chromiumCR24]

nice

[@torukmacto4879]

Einfach genial...

[@hachinger7523]

Exakt xD

[@nestorrice]

Nice!

[@WastedTalent83]

i love how someone who make Science videos, have no idea, how to keep a lighter in a way that he does not to burn his finger...

[@pwrplnt1975]

AWESOME!!

[@abagini011]

explanation ?

[@mdshahrulhasansohelrana9143]

awesome

[@Jacob-yg7lz]

Oh 2007 youtube.

[@IDINAVRA]

Smart

[@haroonahmed4202]

IS NOT CLEAN IF YOU PUSHED FROM DOWN SIDE SO

[@hillbilly766]

make a biger one

[@antitolerant]

Шайтан машина!))))))

[@1Nekit1]

How to produce air from fire - WTF?!

[@sarkozygaming3629]

the south will rise

[@muhammadrizky4969]

2007? seriously? who still watching this video in 2018m

[@klazzera]

this pattern of move reminds me something really irrelevant.

[@BushPilot444]

Half the video is wasted fueling and lighting a burner.....

[@baraodometal8845]

Muito bom

[@Tofilux]

was here

[@عبدالرحمنالبرعصي-ض5ك]

غير مقنع

[@faisalfajri269]

hoax

[@michaelfranciotti3900]

This is actually a pretty smart design. The fact that you got a Stirling engine to work with some marbles and a syringe is impressive. I'd be a little worried about wear and tear from the marbles smacking the glass though.

[@Mizar88]

wonderful idea! you should just reduce friction and better calibrate the balance

[@РоманЖуравлёв-ч3б]

У автора не вышло. Его Стирлинг работает с подачи того что держит шприц под столом. Если присмотреться к шприцу то можно заметить 1 нюанс.

[@jampgui]

Congratulations. It is a vivid demonstration of the effect. It turned my life easier when I needed to explain how stirling engines work.

[@Grishak001]

its the funniest engine I ever seen :))

[@CariagaXIII]

haha

[@MrOzozah]

Gregory Dzyamko stills good

[@CsharpPreza]

Maybe its not perfect but I personally like it a lot and think find it really cool :-)

[@yousif3802]

fake vedio

[@ruchancakaloglu]

FAKE

[@p0p0s]

Great illustration.. at last :)

[@ramicaza]

How do people on youtube not have any sense of ingenuity at all? It's a test tube, marbles, glass syringe, and a burner? What would you gain from a tutorial?

[@owenjackson7207]

Fire is still a struggle.

[@tintin092479]

Umm 2019 everyone but woah this is a very long time ago

[@2theBF]

olaaa quisera saber ke materiales usas para ese proyecto se ve bueno y quisiera intentarlo

[@VideyoJunkei]

add some mass to it so it rocks slower...this will give the marbles time to go all the way to the other end.

[@the13joker]

how is that possible?? how does it work ?? im so amazed? i always loved mechanichs and how engine works an this "stirling engine concept" has me interested in learning more about it , how many tipes are there, and what applications can be used in , please reply!! its just simply amasing. :o

[@Doopdon]

because when the marbles role down (to the side with the fire) they displace the air (air goes to the side with no fire) the air cools, it goes down and marbles role back pushing the air over the fire again. hope that makes sense.

[@1foxtrot70]

@harlock1949 - also acts a shock absorber so that the balls don't hit the tube end. I've built one of these, lots of fun, kids of all ages and adults are intrigued by it.

[@dyablohunter]

OBVIOUSLY! He is pulling the left end of that tube with his hand and making it look like it's moving! ......... :D jk I have no ideea what I am talking about.

[@drgeoffangel5422]

So please explain how this is supposed to work!! What I see at startup, is a spring( air in the syringe, the mass ( the marbles in the glass tube) all at rest with no heat , when the tube is "rocked down" against the air pressure in the syringe, it then returns since the air pressure is x the syringe piston, produces more downward force, than the combined mass of the marbles on the right of the pivot point, thus returning the marbles to their equilibrium position to the left of the pivot. However , once the glass tube is heated, the air in both the glass tube , and then eventually, it fills(heats) the syringe, the pressure in the syringe increases and thus the force, and the reaction displaces the body of the syringe upwards , and thus the glass tube to rock to the right.As a result, the ball mass , is momentarily greater and moves to the right and bottom of the glass tube. If the contension is that the balls lose heat when they shunt to and fro, from the glass tube to the plastic syringe, then why is the system not functioning continously without intervention, and where do they lose the heat? to change the air spring, and thus create the pivoting motion. glass is a good insulator, the marbles would retain the heat , whilst being shunted back and forth, in fact the hot air spring as we witnessed failed to deflect due to the heat from the air, plus heated balls providing no reliable deflection in the spring after a while! Whilst it may be functionaling as sterling engine to begin with, to function more effeciently and to be more stable in operation, requires a better cooling mechanism so that the air spring can change the stroke of the syringe more decisively. interesting experiment!!

[@RCTractorGuy]

I discuss stirlings on my site but i'm not sure what type of stirling this constitutes, alpha?

[@rektify7278]

Thats pretty fucking cool.. you could also make a bigger version of this, and instead of a syringe you put a fleshlight.. lmao

[@eebamxela]

jolly good stirling engine mate. At first i didnt think it would do anything. but then.... COOL!

[@Otacon144]

If you could find a way to get it to move smoothly, I'd say put one solid weight into the tube.

[@Arjoonmoal]

there must be a heat sink in the syringe thats why the air don't gets time to contracts

[@zerotem]

he is pulling it from undeneath this is a lie and why we must rely on gasoline engines.

[@eatmahballs]

what its the black thing that holds the tube? please i have to do this experiment.!

[@nicholasgionet]

maybe you should put a flywheel system an the displaced could be a sliding rood

[@raj261166]

Why you use the syring ? which boll in the class tube ?

[@ludicscience]

really cool

[@cslloyd1]

This is insane… have you lost your marbles?

[@rahmancan2472]

Does the air outlet of the test tube? Does it pass the test tube of air into the syringe ?

[@NigelLoller]

The syringe "piston is a little sticky eh?