Відео

Try carbon fiber cloth solar collector hot air balloon

Just a suggestion, wouldn't it be better to have the reflector support on the outside? Because when there's those wooden things inside, the shade from each would decrease the overall temperature as sun rotates? I'm about to build something similar for steam engine.

Fantastic video. Horrible music. Drop the music. Terrible with that noise. Great with your voice only.

very nice video ..thanks

just doing some really rough calculations it looks like you're getting 150btu/hr out of this example. Pretty cool for such a simple and small design. my math: 6 secs to rise 1 deg = 10 deg/min = 600 deg/hr 600 deg/hr = 600 btu/hr per pound of water 1/2 cup of water = .26lbs of water 600 *.26 = 156 156 btu/hr

Obviously, in order to be anything other than a novelty, the hot water would have to somehow be continuously pumped, as heated, into some sort of a reservoir tank. Then, when full, the system would have to know how to stop heating unless one wants an explosion. "Little" question, like that, make the difference.

cuanto tiempo le tomo en alcanzar su temperatura final? . de que tamaño es el concentrador

You should burn a thin layer of soot on the pipe.

Splendid idea! Love it

Neat.. All these proof of concepts, yet very little proven..

I fantasize about a salt water tank filling my entire basement, super insulated, heated by a system like this. Rooftop, single horizontal pipe with multiple reflectors in a Fresnel pattern. Could heat the house with it.

All these solar panels sitting on top of homes have lots of heat. All that heat reduces the panels life and efficiency. They need to be sealed then water induced. Thus providing free electricity & hot water without depleting your electric reserve. I've done it on a small panel. Used a parabolic dish to focus the sun on the panel. Then ran water through it. Resulting in tripple the electric output~!

There are at least 1 million ways to conserve energy. But since "liberals" run the show, we won't have any of it🙃

As a South African living with no electricity for up to 12 hours a day I'm seriously beginning to think about making this.

Interesting if you need really hot water. However it cannot collect any more heat than what is collected by the size of the reflector. If you simply had black pipes covering the same area, the heat collected would be the same?

Marilia do Rio de janeiro araruama Brasil.🌎🌄

👏👏👏👏👏👏👏👏👏👏Muito obrigada, e esse sistema economico que eu preciso na minha🏡. obrigada

This is why Ben Franklin invented electrons.

I understand not going to the extra trouble to enclose the pipe or glaze the entire apparatus. What I don't understand is why you didn't bother to paint it black, which would have been very simple, and would have increased temps significantly.

At 4:10 - On an annual basis, the Earth's tilt remains constant. The changing angle of sunlight is due to the Earth's orbit around the Sun.

Der Absorber muss schwarz sein, um hohen Wirkungsgrad zu erreichen.

This is great! I wonder how much difference it would make to paint the pipe a flat black, just a thin coat, maybe with BBQ or exhaust system paint, or if oxidized copper is sufficient?

Lead soldering shouldn't be used with hot pipe!!

Not better than black garden hose.

A great video ruined by damned music. Our society is polluted with far too much unnecessary music.

100ml (half of a cup) 1 degree F each 6 seconds - so around 1 degree C every 10-11 seconds gives me roughly 1 kcal each 2 minutes for 2 sq feet. Its 80W (4,19J/s is one cal/s if i remember correctly) Albedo of the sun in troposfere i think is around 800W/ m^2 soo... roughly computing 150W / 2 ft^2 so 50% of efficiency is quite a good achievement :)

You read my mind :) - good mastering and montage

Now spray your pipe with black barbeque paint. NOW watch it cook.

Thank you so much, i was looking for this for a while

How much water you producing with that little thing? When the power is off I have laid black garden hose in the yard and fill it with water and let it stand for a bit. Gets pretty hot. Won’t boil but hotter that you can stand.

google randall weatherington, you get nothing WTF?

Fico muito agradecido pelo senhor dividir seu conhecimento, muito obrigado.

Imagine how cheaply this could be done if people didn't use a broke 'financial' system... It's hilarious that we accept things this way... Conditioning to the Max!! Only a select few gets to choose how much things cost... what the money goes towards... As you toil away... mindlessly gobbling things that prevents positive change... Where the uproar with all the chaos that's arising... for supplies being destroyed... media blackouts on many facts, to which would cause you to fear what's to come... lol Or is it just the 'conditioning(s)' that gets triggered... We shall see how things unfold... hopefully it will be like the y2k... but meh😅

Imagine a connecting the bottom to a small plex hose that goes to a small cup reservoir elevated to the just below the top of the solar exposed pipe when elevated as in the video. As water evaporates/boils away at the top, new cold water is gravity fed into the bottom from the reservoir. Helping keep water throughout the solar exposed pipe for maximum heat transfer. Then one can use the steam given off at the top to cook food in an insulated steam box.

Amazingly useful vid. Ruined by background muzak.

May be paint the pipe black

paint the pipe matt black ;)

Need some sun. Requires some space. Difficult to control water temp...

Back in the early 80's I worked for a company who installed this type of hot water system in Nevada. Pre built 8" long parabolic collectors with blackened copper pipe set into an aluminum framework on the roof of the house. the system had a sun tracking feature that kept the collectors facing in the optimum direction while set at the best average angle to the sun for the latitude. This was a closed loop system. Meaning no household water entered the system. The system water was pumped through a heat exchanger tank and back up into the collectors. The house hold water passed through the heat exchanger into a storage tank and then into the existing hot water heater and into the house. This method allowed the existing system to be isolated in case of emergency. On many occasion during initial start up I watched thermometers go from ambient air temps of 50 degrees F to over 250 degrees F as fast as the needle could move. As the system would run this temp would come down to a more reasonable 200 degrees f. The normal operating temp of the system was designed to keep the household water in the 105 to 115 degree range. This technology should and needs to be utilized more these days.

If you connect this to a hot water holding tank, then add a Stirling engine to the top of the tank, you get even more from the setup

I think i came up with a one way heat diode. My idea is that id have a few energy collectors and a heat battery. Have them dump the excess heat into the battery. Otherwise it would just heat up a water heater. Or it would heat up a air dryer. I have an idea for a filtration system that uses water instead of expensive filters. I haven’t figured it out yet but ive seen the system used in paint booths. I just need to dry the air after it comes out or it would grow bacteria eventually. Also we can use our waste stack as a heat dump. I was thinking we use our sewer as a geothermal heat dump. So the first goal is to generate an excess of heat. That way i have enough of a heat differential to generate energy. Once the heat battery is hot enough for steam its a wrap free power from nature with just maintenance or what ill do is select materials that need almost no maintenance. Actually im thinking of making a open source youtube series on what i think the perfect house would be. With some help i believe instead of a net zero house we can make a -100% house. With it capable of absorbing and holding nearly every pollutant humans make and turning it into a clean energy. With the filtration system i mentioned we would be cleaning the air we take in from the outside of road dust and other fine dust pollutants. We would have a cooling effect on the ground similar to the shade a natural forest would have. (Thermal pollution a theory i came up with in 2010.) and most importantly and obviously provide energy instead of take energy.

Why isn't it used broadly? Because it works only in summer - that's 1/3 of the year. And you need your own roof for the installation, which means you can't have it if you live in an apartment.

Would blackening the pipe add efficiency ? Could you make a return pipe e.g. behind the mirror and a reservoir on top using thermal circulation to heat a larger volume ?

FYI, that type of Pyrex measuring cup is made from soda lime glass. Rapid temperature changes, such as pouring boiling water into it, can lead to violent shattering of the glass. Cool demonstration though! Thanks for sharing.

This video strikes fear in authoryties. The mere thought of people going off-grid into a more independant mode from society, makes the narrative and system crumble.

Coating the pipe with black soot might help. Connect a heat engine to it to generate electricity.

I built one like that in 1964 about 59 years ago. When I was a teenager. Got very hot, steam.

Did I miss something? Where do you find the focal point of the mirror?

Randall Weatherington, goofy name matches goofy head.

I built one of these for a science fair project in the late 1970's. I painted the copper pipe black, which made it heat up a lot faster than the bare copper.