FRESNEL SOLAR STIRLING ENGINE PARABOLIC ALTERNATIVE ENERGY

[SBENTOS]

in your site hav parabolic for sale and engine, I buy, thanks and sorry my bad english

[meagain2222]

these small stirling engines put out almost no power they are useless

for anything practical.Just toys.

[FamousSnatcher]

This is got to be the best solar dish stirling arrangement. To me this is the design that is worth putting money on upscaling.

[wernervoss48]

I do not understand why these demo engines never have a tracking system on them? The engine makes plenty of electricity to power a small tracker and gear.

Put a solar collector near it to power the tracker so that it will move into position automatically every day at sun up.... or add a battery with a trickle charge to power the tracker.... Both would probably be best...

[jib1000]

Thats cool. Can it actually do any work? Can it turn a generator?

[NightRunner417]

It's all just smoke and mirrors... Da-dum chhhhh haha. Very cool stuff actually, makes me want to get into fresnel lenses again. :-)

[MyVinylFetish]

That thing is hot mate, good job!!!

[old138]

Good idea. I wonder if you could use it on a lake up north to keep the cool side cool.

[Sir0Syler]

I guess they should put solar cells in the center of the parabolic mirror for effective energy gathering that can obsolete the use of solar panels :P

[shivlen]

19KW you sure that's accurate? average home with computers and ac and fridges only uses 5-10kw.

[0sbarrett]

How much power can be produced from a parabolic mirror with the stirling engine concept? I'm wondering what it would take to power my home which uses an average of 19kw/day with about a 4.92 insolation value.

[JordanMaster22]

wow, the lid to my fire pit is dish-shaped and 27 inches.  ima make copies of it

[Legionnaire18]

I need a stirling engine for larger applications(. I am trying to convert a 10 foot C-band into a heliostat using mylar. Will you please point me in the right direction as to where I can get one?

[basstube6]

I need to either make or buy one that is at most 12 inches in diameter and has a focal length of less than 12 inches. Where can I get one? Or what would be the best approach?

[GREENPOWERSCIENCE]

We have one really close for sale on our website under more info, "Buy a Big Fresnel Lens link will take you there.

[sodia1]

i need one of those to power up my pc do you know where i can buye a 100 wat one ?

[GREENPOWERSCIENCE]

We are making some that will do the trick, just a little more time:-)

[123kkambiz]

it is great idea to make the pump as a water pump in remote areas to harvest solar enery without having electricity.

[indiasrainbow]

looks great

[vqdset]

search "Concentratore solare da parabola satellitare" an experiment of italian student in 2006.

[Marksman230591]

Is it hard to make these solar-powered stirling engines. It's just that for next year, my thesis is about them, and I have to make one of my own.

[GREENPOWERSCIENCE]

Yes and no. A simple one is easy, one with power is a lot more difficult. I will have a video in the future making one. This one was purchased. For your project, consider a Simple Lamina Flow Engine.

[ycats1000]

laminar flow ones are simple, people tend to over complicate things with weird mechanical linkages to suit alternators

but you can get linear alternators, that way you may only need a few magnets on the shaft... lets you use the high speed as asset and not force the engine into trying to create torque which it cant handle-

[GREENPOWERSCIENCE]

This Stirling engine concept, no. It is about 3-5 watts at best. The engine is a nice design, but the dish is too small and needs a better mirror.

[jatpack3]

verry interesting,but dose it do anything besides make noise,any practical applications?

[GREENPOWERSCIENCE]

Hi,

The 24" dish came from a supplier, I can see if they still have them. I will post if they come it. These are industrially turned aluminium.

[prefermetal]

Where did you get your parabolic dishes from ( 24") You make them from the glass template and cut them with the table saw?

[tbfl72]

where can i find a seterling engine?

[JavaLessons]

Would it be possible to combine a Fresnel Lense with a solar panel, without ruining, that is ?

[ledlightled]

It will work, I just dont have the data right here that I made. I took one of those "page fresnel lenses" that cost $1 and aimed it onto a small solar panel (from a garden light). Basically, and roughly, the voltage will be about the same. Current should about tripple in value. (continued)

[ledlightled]

... The suns heat will cause the voltage and current to go up to a high value initially, but after the added solar heat kicks in, it will be reduced...I guess solar cells like to be cool. (maby a water coolant or heat can help you get some more energy out). Caution, focus the lens over the entire solar cells, do not attempt to go any smaller, like a pinpoint fire, since it will damage the solar cells.

[GREENPOWERSCIENCE]

Agreed on solar. I got a 9 watt panel with no load voltage reading 21v to jump up to 33v with a Fresnel lens. I placed a plastic bag filled with water on the backside to absorb the heat. Also.... Mirror arrays work better with less heat. New high temp panels work better. Because solar cells have very thin wire, a little heat increases resistance and limits the flow. If you can take cells, apply a heat sink to each, and apply better connectors, you can handle more heat. WOULD be cheaper to just..

[GREENPOWERSCIENCE]

buy more solar panels.

[Fastlan3]

Why don't you use the extra heat to run another stirling engine, or would that not absorb enough heat?

[Odziz]

How much energy does this produce compared to the same size (surface area) Photovoltaic array?

[GREENPOWERSCIENCE]

Hi Odziz,

This is a weak engine and only generates about 3-5 watts. If the dish was a true mirror and the engine was more advanced they would be about equal. The mirror is still the $ticking point.

[hughesbrayden]

Awesome!

[Voice0fEnergy]

Nice!