Stirling engine example

[suwadbureau]

Hi

If you attach magnets to the wheel and some copper coils around can you get higher output than the input.

[APACHEMAN747]

how do you stop it?

[evr92]

@APACHEMAN747 take the heat source away from it

[Awatcherofevents]

Could you generate electricity with that? Of course with the needed equipment?

[MullaneyRC]

Where did you purchase this engine?

[DaWestsideUnlimited]

sounds like harley davidson v-engine

[brandonsg123]

ok so i have the very first model off this my grandpa got it within a year when it was released...less than 3 yrs ago he gave it to me b4 he passed it is a memory of him of very little and i was wondering why it wont run...i have had the tip heated far past 250 before but it wont run so i tried adding oil to make it smoother to run but it still wont can you help me i really want this to work

[EpicPhysics]

@brandonsg123 Is it sealed properly? If there are any air leaks they will find the path of least resistance ie. come out of the engine instead of moving the power piston

[broccolihart1]

I have a question...can the flywheel be set up to drive a vehicle if there was a tire in place or would I need a separate linkage to drive a tire ?

[ProductionZxx]

now if i only had about a 1000 of those in my car haha

[1999JTB1]

Are the fuel tablets reusable?

[denni4job]

wats the use of the other tube.

[EpicPhysics]

@denni4job One tube is for moving the air back and forth, the other is a sealed power piston, it powers the engine. You can see how a similar one works on my page

[poaihr]

Awesome, You know I've been looking for a stirling engine, since at my thermodynamic's class, my teacher request us for a stirling engine in order to get extra points, could you please tell me what do you need to accomplish the experiment? (and how you do it?) thank you very much (I know is too much but you would save my life if you give me the plans :D)

[HALLOLOUIS]

Who plays mario kart?

[Vim281]

Where did you buy this engine?

[uzairiasif1984]

seriously dude i love this invention i make my self but i have no idea and no such materials to build this things.............

[sagnbaby]

I HEARD POLE POSITION!!!!

[SurvivalGuide2012]

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[Kakashi101sensi]

where the hell can i get one of those =/

[Masterofhalo111]

WTF! THAT'S FAST!!!

[valdezmj10]

dont know much about this but why dont they make like a thermos chamber within thre device so it can keep on going??

[327409427]

Tank’s for posting this. What practical application would this engine have if it were much bigger? Could one use it to power a generator?

[hackmandude12]

Just... Pure.... ENERGY O.O

[BearGryllSurvival]

Who the heck is playing Mario Kartin the background?

[PenguinSkipper]

Did you make this engine? If so I was wanting to make a stirling engine and was wondering if you had a plan how to make it or knew where to get one.

[DaakMan]

@PenguinSkipper: i have FizGig Stirling Engine for sale..if u r interested, contact me.

[tyuiwas]

___ w w w diymagneticmotor com has FREE energy interesting INFO ___

[phobos2k2]

If we attached these Sterling motors to all the mouths of politicians in Washington, the sheer volume of hot air moved could produce enough energy to drastically cut our dependence on foreign oil! (Cool little motor btw).

[jukka1996]

shiiiiiit o.o

[pedroataidee]

any chance you can provide the diagram/schematics for that engine? I saw your vid and was really interested in such an engine

[BoilerRoom4]

@pedroataidee It is a "Gamma" type stirling engine. There is some great stuff to look at on the web. I've seen animations of what is going on inside them. A good book—"STIRLING CYCLE ENGINES" by Andy Ross, and CDROM "STIRLING ENGINES" (I bought it on ebay from obcddudisque). Another good book is "Rev Robert Stirling D.D. Inventor of the Heat Economiser and Stirling Cycle Engine" by Robert Sier.

[dragonparty2]

I heard Galaga and pole position in the background lol

[ChrisMolyneaux93]

Anyone else hear Galaga in the background?

[infarc]

@ChrisMolyneaux93 Good ear. Galaga IS in the background!

[ChrisMolyneaux93]

@infarc Later on in the video I also hear Pole Position.

[trint99]

@ChrisMolyneaux93 And Pole Position.

[BoilerRoom4]

Great video, but your explanation is bollocks. Your "heat collection system" is actually the power piston (the bit that makes it go). Your "piston" is actually the air displacer (which doesn't touch the sides of its cylinder). When the air displacer moves the air into the hot end, the air expands and pushes the power piston. Then the displacer moves the air to the cold end and the air contracts—pulling the power piston back.

[infarc]

@BoilerRoom4 All true, and that would be a *big deal* if I in any way claimed to be an expert on stirling motors. I just gave an explanation about it as I understood it... all of which is taken entirely out of context since the reason for the video in the first place was to show how car engine exhaust moving into a larger area cools and is difficult to move, thereby robbing power. Luckily this is the internet and experts such as yourself leap out of the woodwork at any provocation.

[ohiohamguy]

sounds like someone is playing Pole Position in the background. cool motor

[beowulf500ad]

Just wondering...how much power would that actually produce. I doubt it would produce much but I'm still curious.

[infarc]

@beowulf500ad It produces about 70% as much as that esbit tablet burning creates. Which is not a lot.

[Cre8Thought41]

Supra 0809: Then the statement should have been,"running on nothing but heat and expanding air." In journalism you can leave out facts but with science facts are the mainstay and are not a given.

[ninja6kid]

Sooo, a stirling engine could be used to power a fan in a forge to melt steel?? hotter the fire is the more air is pumped, and it gets hotter still, etc etc?

[Cre8Thought41]

Running on nothing but expanding air? Whats the flame for?

[Supra0809]

@Cre8Thought41 how do you think air expands?

[Cre8Thought41]

@Supra0809 - it's a rhetorical question. It's a question for the author to improve his statement. If you imply that you have some scientific gift, then leaving out important information makes your experiment, theory, study or thesis lame. Got it?

[MrToiletface]

absolutly incredible. completely restores my faith in piston driven engine technologies. lubericate that thing with lintseed oil and itd be totally green.

[infarc]

@MrToiletface Lubricate that thing with linseed oil and it wouldn't work anymore. The surface tension of any kind of oil will radically reduce the efficiency of the engine, which is exactly why it is lubricated with graphite. Like most green proposals, this one sounds good on paper but is entirely unworkable in real life.

[NiekoXavier]

Where did you find the parts to build it?

[infarc]

@NiekoXavier I time traveled to Italy and had Leonardo DaVinci hand carve the pieces from the metal fillings in Mona Lisa's mouth.

[BoilerRoom4]

@NiekoXavier I bought one of these stirling engines in 2009 on ebay from akrailways (A & K Enterprises, in Newhall, CA.). It is made in USA and comes unassembled and unpainted. Obviously, there are many manufacturers and a wide price range.

[samanthacarney22]

so, i am making a sterling engine similar to yours, yet it isn't working. could you give me a few tips on how to get it working? thanks !

[samanthacarney22]

Stirling engine *

[infarc]

@samanthacarney22 Buy one as a kit like I did? Aside from that I have no idea.

[sondreixixv]

Love how quicly it slows down and stops when you extinguish the flame :D

[infarc]

@sondreixixv That happens to an engine that runs on heat. :)

[briquetaverne]

What would happen if you attache the flywheel to an alternator, which in turn charges a battery, which in turn runs an electric motor and a heating element simutaneously. If that heating element was wrapped around the heated end of the stirling engine to replace the initial heat source ( like a match) Hypothetically, wouldn't you have a perpetual motion machine?

[infarc]

@briquetaverne Here's an experiment for you: Plug an electrical extension cord into itself and see what happens. It's the same thing. Power HAS to go into the system, it cannot run itself and even if it were 100 percent efficient it would only generate enough energy to run itself. A two stage Stirling (like mine) already has a system to store and reclaim some of the heat, but that just makes it more efficient, it doesn't make it generate power out of thin air.

[ThatAtheistGuy20]

@infarc Lol loved the analogy

[wormsmaster1994]

@briquetaverne

Laws of nature stated : you gannot gain more energy then yiou put in it.

so i guess it will be charged but not charged AND keep running this stirling engine.

[infarc]

@wormsmaster1994 Even worse, you'll never gain as much energy back as you put into it. Entropy robs energy.

[wormsmaster1994]

@infarc lol state of the art comment there ;3

[sever0us]

@briquetaverne The second law of thermodynamics expresses the existence of a quantity called the entropy of a system and states that the entropy of an isolated macroscopic system never decreases, or, equivalently, that perpetual motion machines of the second kind are impossible.

[infarc]

@sever0us That is absolutely correct!

[sever0us]

@infarc great little machine you have there, im quite envious!

[Josephnesis]

that engine is so beautiful!!!!!

[ProfessorMackin]

put a huge one of these on a bike

[infarc]

@ProfessorMackin "Huge" would be correct. You might as well build a steam powered bike.

[iNotFound]

very cool, but did you see that homeless guy with the golden voice?

[hydrofuelsystems]

Very nice job -- Where did this engine come from? Did you make it , or is it commercially available? Thanks!!!

[jasonguyperson]

1:28 I think you mean "volume" of air rather than "density." (The density is decreasing, not increasing.)

[infarc]

@jasonguyperson That's absolutely correct.

[bukster1]

I have steam engine of similar size. However with no water, this one is a lot simpler to run. I'm sure somebody must be selling kits to build one. I'll check the local model stores.

[MrThebull09]

does this run on gas?

[infarc]

@MrThebull09 Good lord

[kleindamv]

i can hear galaga and pole position in the background!

[infarc]

@kleindamv Great ear sir!

[PolytechMex]

Hello, I would like to contact infarc to buy a Stirling engine model. Eduardo Soria edu_soca@yahoo.com.mx

[PolytechMex]

Hola, quisiera contactar a infarc para comprale uno de sus motorcitos Stirling. Eduardo Soria edu_soca@yahoo.com.mx

[MAIERRAUL]

Yes is very cool and interesting, but how did you make the pieces?

[infarc]

@MAIERRAUL I found them in my yard, next to a tiny smith and a miniature machine shop. There was also a cobbler's, and looked like the remains of a loom. There were several small corpses scattered about but I didn't pay much attention to those as the dogs had been at them.

[COD5252]

this cant be efficient as in ic engine the fuel burns for only one stroke but here it is burning all over cycle

[infarc]

@COD5252 Well you'd be wrong about that. A stirling motor runs on heat, not the expansion properties of the fuel.

[KyleLee408]

With this... I have a... MOTORCYCLE! :D

[notserp78]

seriously pole position?....awesome!

[infarc]

@notserp78 Yup. Pole Position.

[somud1]

@ 1:29 , density does not increase as air expands.

[infarc]

@somud1 Yes, I didn't really word that well. The expansion of the cylinder chamber causes the air to cool, which then causes it to contract.

[antoniogoicovich]

excelent

[weltart]

Who's playing Pole Position in the background?

[infarc]

@weltart Nobody. Filmed this at my arcade. Good ear, though!

[BS42O]

@infarc lol I thought it was a cheesy sound fx track added during an edit Which kinda makes sense being a race game and ur talking about engines but I didn't think it was necessary...now I feel dumb lmao

[technofreak928]

@infarc

i thought that was familiar couldnt pin it to anything spacific

how much torch does this motor produce i got one of these as a kit and it has like no torch

[infarc]

Coldarc, you need to google "carnot cycle"

[coldarc]

heat transfer is not conversion of energy and does not violate eny law of physics.

mechanical motion is not heat changed into work in in a stirling engine. there is no heat loss when mechanical work is produced. there is only a loss of temperatre differential, but since the temperature is propotional to mass and some elements transfer heat faster than others, the differential can be regained by mechanical work. this is not about diminishing returns or spring action. energy can be gained in exess

[coldarc]

stirling engines does not run on heat, they only run on heat transfer.

there is no energy going into mechanical work. a mechanical load only result in an increase in temperature and a smaller heat exhange. mechanial work is a result of energy released from the vacuum and can be used to increase the temperature differential and speed up the engine in a sealed enviroment where the heat is recycled indefinitely, so no heat is allowed to be lost.

[verified2]

does it at least have enough torque to stir my morning coffee. Also nice machine

[CrazyCanuck129]

will attaching any sort of gear to it allow it to create energy? (i know you can't create energy, but you know what i mean) Or will the resistance it creates overpower it and cause it to stop?

Thanks

[infarc]

@CrazyCanuck129 It has very little torque. The power source is tiny, therefore the power harvested is tiny.

To make a Stirling with enough energy to do more than turn a fan blade takes one the size of a desk. Of course that goes for steam engines as well, but if you make a REALLY BIG one you can move a whole train with it...

[luisinponpin]

hello my name is luis im from Peru. to all the people who uses this engines, have you ever thougth to attach a little electric generator in order to use it as an alternative to have ligth at home in case of blackouts, it would be a great way to have free electicity at home at least to use it with 12 volts bubs

[infarc]

@luisinponpin You can't create energy out of nothing.  The stirling would create less light than the candle being used to power it. Be cool if that actually worked, though.

[AndrewHecker85]

@infarc True, but the candle is still lighting the room. I'd love to try incorporating one of these into a wood stove. Heat the house and the run the TV from the same energy source.

I heartily approve of your sarcasm, by the way. The page would be a lot shorter without so many repeated questions.

[Edinaldo08]

@luisinponpin

Someone did it adapting a motorcycle engine to work as a Stirling engine. It provides electricity in a small vilage in the State of Acre, Brazil, near to you.

Now there is a man selling a Stirling engine attached to a wood-burning stove. It charges a battery during the day to be used at night. Also in Acre.

Google:

"Fogão a lenha agora também gera energia elétrica"

[ongjongman]

i love science

[pimpinpenz]

how much does one of these cost?

[brodeur722]

I heard pole position starting up in the background.

[infarc]

@brodeur722 Yes you did!

[legox50]

Try adding a fan near the heat collection piston for it to run more efficiently. Oh wait, this is just an experiment... 7.7

[infarc]

@legox50 Actually you should see the thing with a piece of dry ice sitting on the cooling fins. It'll go so fast it seems like it will tear itself apart.

[MrKaddan]

@infarc But what if you let it run for some time? Are those cooling fins efficient enough to keep the air expanding and contracting?

[infarc]

@MrKaddan As far as I know it reaches a static state pretty quickly and will run there essentially forever.

[questionful]

heating air doesn't increase its density, it decreases density, which is the same as an increase in volume.

[infarc]

@questionful Correct

[Zappyguy111]

So cool... or hot, either way it's awesome!

[infarc]

@Zappyguy111 It's both hot and cool!

[MrShadow1239]

someone should put that in a toy motercycle

[Mandragara]

A2 Racer sound in the background?

[infarc]

@Mandragara That's actually Pole Position.

[AznTricker12]

its good for for like make it to a grinder and yea...

[metalcharger17]

Who needs a hampster?!

[infarc]

@metalcharger17 Put a flame under a hamster and he'll move pretty fast too. :)

[MrEtronic]

nice how much torque at 300 rpm

[Cronopioslover274]

Wow! That machine is ready to make a flour mill work!

[cartuner555]

@Cronopioslover274 It would need ot be more powerful. These engines are weak.

[Cronopioslover274]

@cartuner555 I know, it was a joke.

But is funny to see how fast it goes, and somebody has to stop it.

What a brilliant invention.. Men really were and are very inventive.

[gigi172]

most coolest thing i saw on in past few years... is there plans somewhere so i can cnc machined it?

[Djich1]

how many it cost

[cidolouko]

Hi, I loved your engine, and I'm here to ask for some help.. My teacher of Thermic Systems tell us to make a stirling engine... and I don't know where to begin... lol I liked a lot your project.. can you help me with how to make one? where I can find documents teaching..

Thx :)

[FordGT555]

For those who were curious, this exact same kit is still sold by PM Research as the "Thinking Man's Stirling Engine Kit." There are even videos on Youtube of them there.

[infarc]

@FordGT555 AHA! Thank you!

[FordGT555]

@infarc No problem. I'm expecting mine from FedEx tomorrow morning. Can't wait to put it together.

[Zappyguy111]

@FordGT555

Forget kits

DIY! That's if you're apart of a foundry club with a lathe... I can't wait!!! he HE!

[davidjohncook]

i can hear mario cart



[infarc]

@davidjohncook That is not Mario Cart that is Pole Position.

[davidjohncook]

@infarc haha ok.

[monono954]

ADD SOMe THERMITE TO THAT BIH (: that would be so sweet it would spin at like 9k

[usuariomix17]

que bueno el inventico

[xcoolxdudex12345x]

0:54

[lordkaiser1]

@infarc Hi there! I will like to know form where did you got the drawings or the design to do this engine? Is because I would like to do something like this for my final proyect for the thermodynamic class but I can't find the plans for these engines... Can you help me please? =D Thakns and your engine is awesome!!!!

[infarc]

@lordkaiser1 I bought it probably 20 years ago as a kit. I did not design it or fabricate it.

[infarc]

@lordkaiser1 I bought it probably 20 years ago as a kit. I did not design it or fabricate it.

[pimpinpenz]

@infarc do you remember what the kit was called?

[hellstudios]

@lordkaiser1 Check instructables

Look up stirling engine on there. You'll find a few really good guides.

[codWaWplaya18]

make giant ones and put it on a car!!! super efficient.....

[infarc]

@codWaWplaya18 I will let you google that idea and find out for yourself why it doesn't work so well.

[wwarsin]

could a sterling engine be more efficient than a combustion engine?

[infarc]

@wwarsin Stirling motors are considered to be about 32% efficient which doesn't sound all the good until you compare it to an Internal Combustion engine which is about 8% efficient. There are models that approach 80%, but the practical power output is not really usable.

[wwarsin]

@infarc how efficient are electric motors?

[infarc]

@wwarsin Electrics have a completely added dimension of how the electricity is generated, but they are typically between 10 to 16 percent efficient.

[woodscritter]

@infarc Dunno where you got your efficiency figures, but it seems that you're way off, pro stirlings and against all others. Some electric motors approach 100%, especially 3-phase ac. Otto-cycle (gasoline) engines can approach 30%. Many Diesels approach 40%, with some Wartsila-Sulzers around 50% before recovery of heat from exhaust.

Stirlings' efficiency varies all over the place, with few reported peaking above 25%. Of course, research has been neglected for many years with cheap oil.

[Dirtboy101]

@infarc Why isn't that power output usable? too little torque?

[MrBayden82]

haha ty, ur vid made me realise, the hotter the faster

[infarc]

@MrBayden82 Well yeah, since it is an engine that runs on heat.

[Kuploosh]

What's the power piston make out of and how is it lubricated?

[infarc]

@Kuploosh Something exceptionally light, feels like some kind of polymer. And it is lubricated with teflon, you can't use oil because it actually has too much friction!

[Kuploosh]

@infarc Oh okay. Nothing that could be easily improvised I guess. Thanks!

[nintendorober]

What material do you need ?

Where can we buy it?

Please explain how to do it

Pleeeeaaseee!!!!!!!!!

[JalmarEst]

whats the speed of wheel?

[infarc]

@JalmarEst I would estimate it at about 3000 rpm or so.

[brandeno15]

i am making one do you haft to use hot and cool air to make it expand and contract or can you make one side heat up and the other contract due to the other piston pushing it down

[infarc]

@brandeno15 I am not a Stirling engineer, and truthfully I don't understand your question?

[ftfurz]

no, by pushing it down your actually compressing the air, this will actually cause it to heat up. you do need the air to cool down, there's no way around that.

[1974Alfa5Spd]

Jeez, look at that thing go!

[dragracing3508]

stirlings are easy to make. i made 3 of them. the two connecting rods on the crank are offset 90 degrees, and everything needs to be air tight.

[infarc]

Perhaps you can supply some plans, then. Everyone here keeps asking me for them.

[dragracing3508]

i dont have plans. all i do is look around my house and take random stuff and put it together. for ex a connecting rod can be made from a metal coat hanger there are plans on the internet that dont involve using any type of machine like a lathe

[hoppper26]

you can buy it from pm research for 90 bucks plus shipping.

[kokisthegangsta]

i dont think it has very high efficiency? that simple homemade?

[infarc]

Well you would be wrong then, wouldn't you?

[VBioreactorBydlo]

That was awesome!

[trev4ev2]

damn thats fast.. how many rpms?

[infarc]

I would estimate it at 3000 or so. Throw a chunk of dry ice on the cooling fins and it will go so fast it'll nearly fly apart.

[insme]

can this be used as a table fan substitute?

[infarc]

Yes. One of the original uses of Stirling motors was as mineshaft fans to provide ventilation back in the middle 1800s.

[kokisthegangsta]

efficiency on this engine is :P?