Stirling Engine 2

[richardarichter123]

real nice thumbs up

[liveuk]

Your not supposed to laugh lol nice one get the cat in the video too just for fun

[tyuiwas]

W W W  diymagneticmotor com ~~~ FEE energy Guide~!

[madelainejulien]

is it you who have made it ?

you can make one for me? I pay it !!!

[MrChadms2010]

springs you need springs



[josephdupont]

How come no one ever puts magnets on the fly wheels of these neat machines?

you coould presurize the whole unit and really get the power up.

[josephdupont]

How come no one ever puts magnets on the fly wheels of these neat machines?

[piespokladowy]

great!

[Henzzman]

Are you running cam? :) Because it really does sound like an old v8 car idling.

[celsocorbelia]

Essa coiza e mais inutil que chaveiro para mendigo

[Lowracerman]

Looks good. I think if you replace the red hose and fittings between the displacer and the power piston with a much larger hose it will pass a larger volume of air and the engine will run much faster. Keep up the good work and have FUN.

[rajsaroj123]

oooohhh! man.

from my side the whole method is wrong,

because if you do it with an electromagnetic method the piston inside gets

attracted and when you leave it, it gets stuck and it has problems in start.

[mamaby00]

congratulations but i think our teknology has moved on since that times when steam was the main sousce of power

[mts4243369]

Good thing its not powered by steam then....

These types of engines are still very much in use all around the world, particularly to power things like pumps and generators. The only object of these engines is to keep that flywheel pumping!

[therandomexample]

@mamaby00 screw you, you fascist! Steam power is VERY much still used!! Electrical plants still use steam power to generate the electricity you used to write that fuck up of a comment. By the way,

* "I" is capitalized

*It's spelled technology

*also, it's spelled source

*there should be a comment between congratulations and but

*the phrase should be "moved on since the time steam was the main source of power"

*there should be a period at the end

*the sentence should be capitalized at the start.

[mamaby00]

what is your fucken problem man??? i think you are a fashist! and i alsi think tha everyone has the right to have an other way of thinking

[therandomexample]

While everyone is most certainly entitled to their way of thinking, I am also entitled to think your grammar is atrocious! Steam is an amazing thing that is incredibly useful! Perhaps if you corrected your fucktard mistakes... *Fascist, not fashist *fucking, not fucken *What should be capitalized *Sentences can't start with and *All your 'I's should be capitalized *It's spelled also *Tha should be that *another, not an other *there should be a period at the end of your sentence Suck on that!

[jugglermartin]

Electrical power stations use large steam turbines driving electric generators to produce most (about 80%) of the world's electricity.

[zzytrewq]

@mamaby00 - Steam is not a source of power. It is a means of harnessing power (energy) from a heat source. Atomic submarines use steam. Coal fired power stations use steam.

[theboatsucks]

is yours able to produce power? and what type of rings do you use to seal the pistons?

[farsangteodor]

Hello,

whats happening if you delay the work piston with 45-90 degree?

[james9149]

It runs best at about 85-90 deg. phase offset (as here), but a small angle change makes little difference. Change from +90 deg. to -90 deg. and it rotates the other way.

[joesmoe71]

Awesome job!

[AhirueChan]

girl: *laughing*

guy:your not suppose to laugh. this is very serious science.

very serious indeed *very serious face*

[stonerj0e]

my pinky could stop it .

[blg53]

It may well be that you are better off forgetting about the explicit regenerator material and redesigning your displacer as a fully sealed can so there is no air contact from inside of it to the outside. This way the air inside the displacer is not a part of the compression/expansion cycle which reduces significantly the total dead air. You do have to make the displacer more rigid as the temperature changes will subject it to pressure changes and therefore distortions.

[blg53]

Hi James, people were commenting on the fact that if you reduce the 'dead air' in your engine you will increase the compression = power output = torque. I don't think your connecting tube takes too much dead air tbh as it looks quite thin. But from your description of the design of the displacer it's pretty clear that almost the whole internal volume of the displacer (minus the regenerator volume) is dead air.

[trossachs2003]

Seems nice and smooth. Main question is why is your power cylinder so far from the displacer. You talk about a closer tolerance of your displacer and hint at a heat exchanger but the big drawback is the distance between your displacer and the piston which is "dead" air and just absorbs your power. Why didn't you put the piston on the same side as the displacer (offset from the displacer rod)?

[james9149]

Yes, cylinders need to be closer - if connecting tube is too thin it impedes airflow, while wide tube increases dead volume. Ideally flywheel should be outside and power cylinder between the side plates with very short connecting duct to displacer. Haven't made the appropriate crank yet.

[eenergie]

I allways wonder why such films

with high inovationwork never reach 5 stars.

***** from me

[eddiequest2]

good start - but needs more info, maybe viewed under a load of some sort. But appears to be well made.

[Lowracerman]

I see the copper tubine is water cooling and torch on the head big temperature difference makes the engine more efficient. Looks good.

[mechtech2004]

You need to reveal the heat source, looks like you are using compressed air, and also show this device under some kind of useful work load. I'm tired of watching too many of these alternative energy device videos shown here not performing any work load, which makes them very doubtful they will perform under any type of load at all! To coin a phrase "You can fool Some of the people Some of the time, but you can't fool All of the people All of the time!"

[james9149]

Heat source is a gas blowtorch. Read comment below on physical size of engine needed to generate 'useful' power output at atmospheric pressure. To get anywhere near the theoretical high efficiency of the Stirling cycle, and be of compact size, it needs to run at very high internal pressure, and use hydrogen or helium as the working gas. See for example, "Stirling Engine Design Manual', W. R. Martini.

[filinihoe]

if you dont know stirling engines was used and are used in submarines, from 2nd world war, since they are very quet , so they can be used

[trossachs2003]

It's not THAT "alternative". Stirling engine was patented in about 1816. Half a century before the internal combustion engine. It was immediately superceded by the electric motor. Its never really had much R&D. But they have actually been used in submarines and some commercial applications.

I think they will have increasing potential but apart from that, you are right in that there is a lot of bullshit out there.

[trossachs2003]

Yeah, that's what I would have thought.

I'm trying to put together my own and am currently assembling parts. One thing I can't seem to get an idea of is the ideal ratio of displacer volume to power cylinder volume.

I guess for a low temp it would be quite a large ratio but for a burner type; any idea where I can get a handle on this. Also, has anyone published any investigation on the relationship between efficiency and working pressure?

[CraziestOzzy]

nice display of your cooling methods!

[fokker99]

It would be better to have the piston closer to the displacer so that the orange hose connecting the 2 could be shorter and dead space would be minimised.

[james9149]

Agreed. Later versions use a shorter tube.

[immigranter]

I don't think these things can spin fast, but as long as there is a cooling and heating source, they theoreticly should run forever right? I mean the engine itself could power a mechanism to heat and cool the gas. Right?

[TommeyLeeReed]

cool.

[supercabinetman]

nice job! too bad you had a spender harassing you!

[machinedcreations]

Great little engine!!! Is it very torqey? Thanks for showing!

[james9149]

I've not done speed/torque/power measurements, but it does produce quite a lot of torque at low speeds, I'd guess because this gives more time for temperature changes to take place in the displacer cylinder. Look at the physical dimensions of the late 19th century pumping engines so see how big they have to be to do something useful when working at atmospheric pressure!

[colin340]

how can anything be as sexy as that

[legonoitall]

Myley Cyrus is Sexier

[kittyw0man]

...you're "25" and she's, like, 15 or 16...

[441rider]

For cooling coils you can carefully vise the tube before bending and tap a bloc for a flat contact surface to can. :o)

[441rider]

Thanks from a BSA nutter for the numbers! hard to find! I think the pulley being used as flywheel? all ready to make some tea. I am trying to build one with a Lucas rotor as flywheel and have a stator around it for AC, if I can make it work with Lucas it will be a snap to put a real staor on it.

[impazzitoinvolo]

Nice! I want to make a similar Stirling.

What is the diameter and stroke of the displacer piston? and the diameter internal of the displacer cilinder?

Bye, and congratulations again

[james9149]

Thanks for comment.

Power piston stroke = displacer stroke = 3 inches (=76.2mm)

Power Bore: 1.5 (=38.1)

Displacer bore: 4.2 (=107)

Dislacer/regenerator thickness approx. 20mm, 2 perforated steel plates packed with steel wool.

Displacer cylinder is a paint can (won't last much longer, as it distorts if overheated!)

Cooling coil is 5 turns, 8mm copper. Wind onto undersized former, then a tight spring fit.

[impazzitoinvolo]

Good! But i think the power piston stroke is bether near at 50mm.

I have a piston and cilinder with bore 40mm, and i will make it on 45 or max 50mm of stroke.

And i have a cilinder for displacer with bore 125mm.When i will finish it i will send the video online.

Thanks,bye