Nice to see our Mini Tubes are being put to use! Best video we've seen yet! If needed we have some other size tubes available, we can also specially manufacture to size if needed. Thank you, North American Solar Solutions

That black tube looks like a giant vacuum tube they would use in an old radio station.

Its fascinating to watch the engine slow down when it does work to power the radio

Never thought of using an evacuated solar tube and a stirling engine together. Nice creativity.

Nice Job! One limitation is that air is a fairly good insulator. I suspect that if you used a cheap can a lithium axle grease on the inside of the evacuated tube, it would hold up under the temperatures and would conduct the heat much faster than air to your stirling engine. Second thing, your radiator to expel waste heat shouldn't be black and sitting in the sun. Keep as much sun off it as you can to try to get more power.

Something real for once. Good job. I have seen people claim 100 things with graphene otherwise. lol.

Five years later, I have been using one tube two and a half feet long, five inch interior, made for use as a massive oven. I havent gotten round to making the stirling engine, but I am very certain when I do I wont be worrying about energy. I will use the beeswax I have been collecting as well, so it can go well beyond the daylight hours. Still upsets me to see these tubes so underutilized and shut out in the usa. Now they cost insane amounts of money, due to tariff and "ebay" scenarios.

awesome dude,,hope to see more solar being used,,

that's insane...I love it!👍😉🇨🇦

This is so cool.

You should spray foam around the opening or some type of insulator for more heat.

Congratulations.

Thanks Roger. Can a Stirling engine produce a useful amount of energy,say to generate electricity if a lot of backyard solar reflectors are pointed at it?

Супер, фантастический генератор. Снимаю шляпу.

What is the lowest hot temperature at which the engine start to run? Or if you do not know it what is the hot temperate in this video?

What is the hertz frequency of sun light that powers these vacuum tubes?

Where I can buy the Stirling Engine that you have used? Is it a kit that I can order and assemble it myself?

how many of these engines would you need to have a lot of watts to run major appliances?

No, i'm sorry. I built this engine from scrap parts laying around.

Genius now if we could get it to run on moonlight lol.

Wow, really nice engine and clever use of a solar vacuum tube.. Have you measured the temp inside the dry vacuum tube? Would it be more or less efficient with water.

did you brought this all from ebay or u brought only ETC and made Stirling engine by urself? and how much voltage it can produce

Nice idea! Could You, please, show us a litle bit more about your version of Stirling engine?

Great job. Where did you get your Stirling engine?

nice job!

You have measured the temperature reached?

No, you can't buy this engine as a kit. This one is self made with old tapedrive parts and a testtube. There are some sellers on Ebay with stirling engines, not sure about quality and performance tho.

Make a gallium piston solar vacuum heat plug to power the engine. This design could help farming with cheap water pumps. Novartis

ultra nice!

This would work well with low power electronics, I suspect this would charge a 2.7 volt ultracapcitor.

Very good project can you get me the details of the units.

I feel I have a deep misunderstanding of how these evacuated tubes work. Is it like a heat pump? If I scale up (theoretically) the diameter of the tube, does the heatpipe become even warmer? Analogous to the previous question, can I put these evacuated tube 'concentrators' in series to get extremely high temperatures? I don't understand...

Congrats buddy! I really had not thought of something! Very interesting this video. Leandro.

where did you buy that evacuated tube?

Whats the name of that first song?

this is the radio future..

question - i am a female with no mechanical or electonic experience but have been educating myself with the idea of passive solar heating from my condo window, but than discovered the solar tubes. I saw your video and said that is it! that is what I need to power the heat. Now.............here is the question - what do i need to do what you did? the tube, which I found on ebay, the stirling engine? But alot of them say low temp. Do I need a high temp? When you put the tube on the engine, did it cause alot of heat? I dont want to start a fire,but I want to create heat in my house................ I would really appreciate input. I think the passive solar window idea will look like hell. this I could put in my window. I would be willing to hire you to make it for me................ let me know. thanks.

Haha, Well done!

Nice.

Do you have any plans available?

Great!!!

geleceğin motoru güneş enerji ile. 2070 yıllarında aktif olur

@ my stirling engine))

The copper alcohol tube fitted in a gallium tube to heat piston on engine will generate a higher rpm.

How much energy you can get of this thing? Nice work is real? Why I can't see serious project with this technology? Can you give information about a big project with this technology.

awsomee

Could you not use a crystal graphite rod in the piston and operate a low voltage hertz emitting diode operated off solar panels to heat the the piston on that engine? = /

nope, alles zelfbouw. Die solartube is wel te koop, hep m via ebay gekocht.

Is that anough to charge a smartphone or tablet?

(do I hear 3FM Dutch radio by the way?) :-)

do you sell these?

Quanto costera' non lo so' , quello che sono sicuro e' che ogni singola missione spaziale costa in media 450 milioni di dollari con gli stessi soldi quanto si potrebbe ingrandire il modellino e quanta energia potrebbe produrre? Un giorno si pentiranno di non averlo fatto

Can you sell it?

what is the name of that song ?

Hi Roger - Where I can buy the Stirling Engine that you have used? Is it a kit that I can order and assemble it myself?

it can run when is -5 celcius? maybe backwards? Laurynas

I don't get it, a solid state photovoltaic solar cell will provide charge without moving parts to make the radio work, great demonstration of the vacuum solar cell though.

The Problem here is barely about the mechanism or its potential, but the problem is that this technology is obselete compared to Solar Cells to produce electricity.. In the Stirling engine: Solar heat TO Temperature Rise To Air expansion TO Mechanical Movement TO Belt Drives To Dynamo/Motor TO Electricty In Solar Cells Solar Heat TO Electricity. The Losses due to friction and resistance are tremendous, Solar cells would be cheaper, Easier to maintain, smaller, Lot more Efficient. The Stirling engine predates the Modern day IC engine and was earlier run on heat/Steam/Flame. This tech has applications where Rotary and Flywheel type Movements are Required. Bottomline, it needs better practical applications than this. Some better solar powered Stirling engines out there, worth a look

Is this a scam? Looks like theres a blue battery there

Still bothers me that no one has taken those tubes to create all usable potentials. Power generation using high temp TEG (seebeck) modules(NOT TEC MODULES), Or paired with the ability to generate cold with the ammonia sealed systems (Crozby icy balls anyone?). Air systems. Some use them for cooking, but not to their full potential. But back to power, you can easily have that same tube generate 12-18 watts using a aluminum cannister filled with a particularly dense level of wax and a seebeck high temp TEG and to the external of it into a heatsink or water flow or float or standing, and well beyond daylight hours. People completely underestimate those solar tubes... really drives me crazy to be incapable of building the systems.

speak

LOL> Dutch radio...

Bof! -_-

Fake