Attempt to build a large Stirling Engine 

absolutely phenomenal. increase the flywheel arm to attach a centrifugal pump to and you essentially have a pump, suction, gen, and anything else you want. i'm blown away

Need to use a different type of seal for your displacement cylinder, metal with a plumbers compression joiner , replace the brass compression cone with a graphite &cotton seal. Then you will not blow out your rubber' because it will no longer be used at all.

Thank you greatly for sharing ... sick and tired of pop can displays. Looking forward to your progress !

Thas is not attempt> You have built a fine engine and of sensible size too. May i be permitted to pass on some information i have gathered over some forty years in researching and building Stirlings. Of all the configurations, the alpha is the most efficient and also the simplest of all. Though the engine appears to be small, it has a displacement of 1.4 times the swept volume of either cylinder assuming both cylinders are of identical dimensions. The alpha has not found favour with modellers and hobbists and experimenters due to its very plain looks with not moving rods and levers etc so loved by modellers. For a real power size engine there can be nothing better in everyrespect than the alpha. Additional feature that has not found favour with amateru builders is that the engine is practically impossible to start and run using the published phase angle. My very furst alpha though well made using borosilicate glass cylinders and pistons proved what i assumed at the time to be a total failure as it just would not start regardless of the amount of heat input. I then read an amazing bool on Stirlings by Dr Allen Organ in which he states that the phase angle of 90 degrees could well reault in a non starter engine not to think of a runing engine. Acordingly6 i altered the phase angle until with a phase angle of 125 degrees the engine quite literally burst into life with a speed that would have destroyed itself had i not immediately shut off the heat. I have made many many Stirlings since then and have had perfectly perforing units. Each engine requires tts own phase angle. I have not made a pwer sized engine such as you have so well put together as i do not have a large enough heat source. But should a power size Stirling be required, the alpha just cannot be excelled in simplicity, power output, efficienty and a proper engine look nothing experimental lookiing and no fancy linkages and levers and cranks and rods. coongratulations on your engine build which you refer to as an attempt. I hope you will use your skill, time and efffort in building a power size alpha.As a first engine, there is really no reed for a reganerator as the thermal buffer top of the compresson piston serves excellently as a regenarator. Contragulations again and all the very best to you.

Congratulations for the ideas incorporated in this engine. I like the use of nuts, washers and studs to make up the crankshaft big end. It includes the bearings and the counterweight. It is a pity that it is very difficult to balance out the displacer and the primary and secondary balances need careful attention. It is now easy , that is all I can say. The engine is not a toy and the designer, though using very simple technique, he knows exactly what he is doing. The thought to produce the layout of this engine took a lot of time , to build one idea on top of another. The thinking period to make this engine is indeed much longer than making it. Again , well done.

Hook up a motor to the flywheel, wire a heat gun to the motor, put the heat gun under the stirling, use a starter battery to get it going and now you have free electricity :D. Btw great video.keep up your crazy big stirling engines.

Attempt? Looks like a great running engine, with very nice job in construction. I have built a couple hot air engines but not as big as yours. I mostly like model gas engines but you can't beat a hot air engine for the simplicity and reliability of them when built correctly. Thanks for the video.

Awesome work sir, I like to make myself, can you please list parts and steps to this engine or please provide me with design of this engine

I've only ever used steel wool for these engines and it's worked pretty well.

Accourding to the speed and size of the flywheel there must be some serious amount of torque availeble. Nice concept to make the cranckshaft easier to make! Grtz from Holland

VERY COOL BROTHER. I AM NOT THAT SMART. ONE OF THESE DAY I WOULD LIKE TO TURN A GAS ENGINE INTO A STEAM ENGINE. GREAT JOB GOD BLESS

its a pleasure to see your creations,they let the new comers learn a lot. glad you keep posting them. Regards Abhishek Rai

Purrs like a kitten awesome job

Just brilliant. I fully expect you to solve the world energy crisis within a few years. Saeid

Great job!

That looks quite impressive, and nice as well ;-) Thanks a lot for posting so much interesting stuff! I found a stainless steel pan for cooking asperagus measuring 20 cm height and 15 cm diameter, so a nice shape for the cylinder of my next Stirling project. Kind regards from the north of the Netherlands.

Двигатель Стирлинга на водородной смеси) Выхлоп - чистый водяной пар. Идеально с точки зрения экологии. Другой вопрос не будут ли здесь затраты на выработку или электролиз смеси больше, чем будут получать энергию на выходе. По моему разница температур, путем естественных источников, солнечной энергии например или геотермальной, гораздо лучше.

Tinker on sir another beautiful piece

Hi approtechnie ! Your engine always perform very well compare to others commercial/homebuild engine on internet. Did you have some rules you always follow ( ratio between piston/displacer , material to use ... etc ) to get the kind of performance ? Because you engine always seem to be so simple and made of simple material. Did you have somes advices to give to a newbie that want to get success to build is first stirling engine?

awesome ... i think its perfict put may be if you use a lether for the power piston it will be more reliable

thanks for sharing . great work

I'd rather call the video "Success at making a large stirling engine" because you really made it!! :) It seems the displacer could be a bit smaller so that its friction is zero. It should be able to fall freely bu gravity through the displacer chamber. ;)

amazing very hard work..but a very,very nice engine.i like very much your engines.i watch im every days...

Been dying for you to try this.

Super Tutorial 100% Danke The best Video

Very good your engine, congratulations! Always a great job. I wonder if you would have the same income without the nucleus of the piston (tin), but this piston fully steel wool? But at the same time reducing the length of the piston and cylinder to maintain the same dead zone that currently have within the steel wool! Leandro Wagner.

I think you need to apply reinforced rubber

Good job. Greetings : Gazdag Andras Stirling engine builder.

Great work. looks realy professional. Hope you sort out the problems.

great job..!! its gamma configuration??? maybe next time you can attach a generator, to measure how much power can generate by the engine..,, thanks for sharing...!!

i see the fire heats the outside of the head and within the head is that piston wrapped in brillo material; but how does the heat impact that set up to make it move toward the right. Heat causes air to expand, thus volume expands and moves the piston to the right?

Great build Hats off Well done

I am really interested in these engines. Do they produce any torque? It seems like they produce just enough energy to run. I have never seen one producing any meaningful work. Wait I did see a NASA video that ran a truck all over the place. But they were, well NASA and had a big budget.

good construction!!!

I know, I know. This was done quick to get it up and I took some shortcuts.

exenlent thanks, from guatemala...

Works well!!

%Thats exacly what I have been waiting too see, the sound is what really sets it off,, very cool, how long does the steel wool last??? thanks for sharing

I've never had to running well enough or long enough to be able to make any tests of power, and I don't like to guess on that sort of thing.

i know it sounds stupid, but can you decrease the length of working piston ride in order to increase the life of that rubber sheet? or I don't know...you should cover that rubber with silicone

i predicted that whool would cause problems. if you've ever sanded with wool, you'd know that shit can't WAIT to break down and splinter. its probably tearing the metal up inside and any moisture will create unbelievable problems. should use wood pegs

Great video. Its nice to see a larger Stirling engine working. I am building a solar thermal car. I would like to build 2, 1000w Stirling engines to generator electricity with 2 alternators. Is this possible? I was thinking if starting testing with the alpha type. I am using a large 6 by 24 ft trough solar mirror, I can create alot of heat energy but only up to about 250c. I wanted to cool one cylinder with a water and radiator system.

Very nice engine! Looks like with a little adjustments and better diaphragm material it will do great! How tall is your displacer cylinder and displacer? Thank you!

Bro,, Now use a Fresnel lens to make that heat...

Awesome work dude. Keep up the engineering. You have a new subscriber. I would love to see some sketches or plans or something along those lines. I would be willing to pay a few dollars. Perhaps you might consider a kickstarter campaign to get additional funds. Later.

awesome.

Congratulation, great job!

BRAVO

master of stirling engines' :)

Looking very nice, I like the wood box frame and the crankshaft design. My question is what burner do you plan to use with this engine. And maybe you are going to add a furnace around the heater part of the exchanger?

Fantastic !

Instead of innertube; what about using long throw subwoofer cone assy?

Nice engine has usual. I like the crank design. Keeps the "crankase" more compact. What is the weight of the flywheel? Not sure if this could work with you, but maby if you try running the engine on vertical you could get more speed from it (less friction on crosshead). Just na idea (all my engines work better on the "natural shape" of the strirling engine, instead of vertical inverted or horizontal types. Any idea on power outpout? Congratulations again. PS: Does it run on ordnay alcool burner?

I know where that's at.Ho-in-wald... It's up next to where The Farm used to be, or what's left of it.

Great job ! :)

Do you think the stainless steel wound scrubbing pads for cleaning would work? The steal seems heavier than what you are using but can be purchased at discount stores very cheaply.

Hey approtechie, I was wondering about the soda can stirring engine displacer..I know there a lot of different versions and was wondering what to use to make my displacer (besides steel wire wool). Thx!

I think it has the potential to drive a generator, yes.

Reinforced cone shaped diaphragm and cone shaped piston plate to support it? In that way diaphragm work more in bending mode than stretching because stretching is limited by reinforcement... Alexandr have a nice presentation of it /watch?v=x1t3kGflvt0 Nice linkages. Have you measurements of strokes and volumes? BR, Eki

Ok thanks

Steel wool will probably degrade very quickly and cause problems :(

on of your problems is that the crank shakes too much creating vibration harmonics that avoid the engine getting to full power.

I guess the rubber got a tear where you had a hole put in? Or it teared on the edge on that round thing?

pinter juga lu ... hebat

nice job! did you have to pre-stretch the rubber diaphragm?

Oh, okay, but a guess maybe?

Could you do an "Instructable"?

Is there any way you can run at greater than atmospheric pressure for greater efficiency?

Subscribed and like, keep up the good work you may very much be on to something here. Combine it either a WVO or solar concentrator and get that diphagram issue fixed your going to be set. Have you looked at Hemp cloth encapsulated with carbon enriched rubber?

do you think this stirling engine can drive a generator and power appliances through an inverter or is the torque too low

How many watts do you think. It appears way more powerful than your 10 watt version

What's your progress on this because I'd love to have a go at this myself I think your onto something here

I don't think it got cut or poked, just burst there.

Awesome work, as always, what's the power output of this one?

if you mean replacing your car engine with a stirling engine then it would be nearly impossible but if you mean generating electricity to power a battery and then the battery powers an electric car than it is possible

well dune,

how does the piston work? why is the piston hollow (is it a water bottle). what is the rigid tin cylinder over the head and why is there a tube connected to it?

Why steel wool

hi approtechie how come the crank that goes to the displacer piston isnt connected to the crank rod

Please can you list parts and steps to machine this beautiful Engine?

Excellent effort. Have you tested it for maximum power output? Or is it barely running and any load shuts it down?

could you do a how to on a small one that i could make out of parts around the house?

how does the steel wool hold up after repeated use on your engines?

what does the clear plastic tube do coming out of the air brake diaphram

how much power it produces ? (if you didn't measured, what is your guess ?)

Very nice, moar please :)

генератор на него пробовал подцеплять?

Does the air flow through the steel wool???

why do you have it up on stands? does the crank or one of the rods go down that far?

stroke of both piston same? weight of displace? all dimension of engine? need cad drawing to make my self for my college project

waesome work!!....i meant awesome:-)

at 2:09 can you tell me what that hose if for that's going in to the diaphragm

Where did you get the big stainless steel tube that you used?

Also, can you estimate the amount of heat input through the burner?

Can someone explain me what does the steel wool do? I DONT GET IT!

Maybe what... 1/16th horsepower?

How do u make one

hey man, you got that engine plane to do it in solidworks?

What do the clear tubes do?

That displacer piston- all wrong! You need to use a sealed volume piston just wrapped in thin layer with the steel wool. Than the air expansion will act on a smaller volume and you'd get allot higher pressure differences when it moves from hot to cold side and back!