Bjbj Take the natural heat from the sun, reflect it against a mirror, focus all of that heat on one area, send it through a power system, and you've got a renewable way of making electricity. It's called concentrating solar power, or CSP. Now, there are many types of CSP technologies. Towers, dishes, linear mirrors, and troughs. Have a look at this parabolic trough system. Parabolic troughs are large mirrors shaped like a giant U. These troughs are connected together in long lines and will track the sun throughout the day. When the sun's heat.
Is reflected off the mirror, the curved shape sends most of that reflected heat onto a receiver. The receiver tube is filled a fluid. It could be oil, molten salt something that holds the heat well. Basically, this super hot liquid heats water in this thing called a heat exchanger and the water turns to steam. The steam is sent off to a turbine, and from there, it's business as usual inside a power plant. A steam turbine spins a generator and the generator makes electricity. Once the fluid transfers it heat, it's recycled and used over and over.
And the steam is also cooled, condensed and recycled again and again. One big advantage of these trough systems is that the heated fluid can be stored and used later to keep making electricity when the sun isn't shining. Sunny skies and hot temperatures make the southwest U.S. an ideal place for these kinds of power plants. Many concentrated solar power plants could be built within the next several years. And a single plant can generate 250 megawatts or more, which is enough to power about 90,000 homes. That's a lot of electricity.
Spain Privatizes the Sun Solar Power Collection Tax
Solar power in Spain a lot of people are angry that spain has essentially privatize the sunday put together a consumption tax on solar power via a Royal Decree it taxes people who are gathering sunlight on the wrong in other words you can pay to have a professional installation done um up solar panels and a and a large installation with an official utility company if you choose to have the install done privately so to speak you can have to pay you can be forced to pay a fine.
Up to 30 million euros for illegally gathering sunlight without paying attacks the tax happens to be just enough to make sure that homeowners who are gathering and storing solar energy cheaper then the statesponsored providers have to pay a tax that makes it slightly more expensive completely disincentive Ising the advancement in creativity of ways to harness solar power I think this is a real problem I i understand why the government is doing it on the Secretary of State for Energy is being labeled a backup toll and it's high enough to make sure that it will be slightly cheaper to keep.
Buying energy from the current official providers I think this is a real problem I'm the equipment has decreased about eighty percent in Spain in prison terms of price to to harness solar power on your own if you were thinking this is really cheap I'm going to take advantage of this this tax essentially makes it an I know when Louis yeah I I can't believe I'm hearing this I I don't know what types have a taxes like this are at the poorest citizens a spanner are hit with but this one.
Is despicable I I can't believe this is happening I mean Europe is supposed to be the place where are the place where people are pioneering in areas like this well I understand that the economic situation in Spain is problematic right now I was just in Spain last week and talking to a lot of different people about the job situation about the economic situation I understand that but there's another subway to view this which is OK the government can can recoup or get additional tax revenues by doing this.
But the other side if it would be what about a complete energy revolution in Spain by allowing people to save the money by by doing the installations wouldn't without the statesponsored providers and turn Spain into a bastion of alternative energy over the longer term and maybe Spain maybe the economic situation is so bad that Spain can't whether the temporary loss of revenue that's going to be good for Spain in the same way that well I don't wanna make a direct comparison but that sugar cane and ethanol in Brazil has been very good for Brazil.
And I know that there's still tons of problems but so so it may not be a the best analogy but I just completely disagree that this is the best way to go about you completely disincentive Ising people from continuing to develop ways to to harness solar power more cheaply by just saying hey if you do that you can end up paying the same amount or more than if you just did the kind of tired all things going with the state providers I completely disagree with that its yeah it's a lack of foresight and let's keep in mind.
Now with solar power you it can actually pump energy that you collect from a sign back into the grid I but that doesn't really help the government the individual gets money for that well I hadn't been in the long term it it really can't in the long term a cat alright so we're gonna keep following the story there send me your thoughts there was actually a diesel tax in Finland at one point with the same idea a because diesel was providing much better gas mileage etc an additional tax that kind of took away the benefit and it just didn't make any.
TEA Laser Easy HomemadeDIY Laser
Hi Gang! This is a fairly easy to make laser, called the TEA laser. It puts out ultraviolet light, which we can't see. But certain materials, like highlighter pen ink, turn that ultraviolet light into visible light, which we can see. Before showing you more demonstrations, here's a quick overview of the TEA laser. This is my homemade high voltage power supply. This ball is connected to Earth ground and this ball is high voltage positive. There's a spark gap here. There's also a very long spark gap here. That's where the lasing happens, the creation.
Of the laser beam. There are a bunch of weights to hold things down firmly. Mine are just bags of sand. There's also a resistor sitting here. On either side of the very long spark gap are this angle piece and this angle piece. And lastly, there are two capacitors here. One is formed by this small sheet of aluminum foil, the dielectric which in this case is a sheet of polyethylene, and the larger sheet of aluminum foil under that. The second capacitor is this small sheet of aluminum foil, the same sheet of polyethylene,.
And the same larger sheet of foil underneath. Time to have some fun. You can't see the laser beam. It's ultraviolet light. But when that ultraviolet light hits white paper, the paper fluoresces, which means it gives off visible light, which we can see. Notice that the beam is going in both directions out the gap, showing up on both papers. You can also make a mark with a highlighter pen. It also fluoresces when ultraviolet light hits it. But I want to see the laser beam along its length, not just the ends. For that I break open a highlighter pen,.
And take out the ink tube inside. This one's wrapped in plastic. The material in the tube is filled with fluorescein, which does the same thing as the white paper. I dip one end of the tube in a container of tap water, soaking the material. By wetting the material like this and gently squeezing, I get some of the fluorescein in the water. I then put it in the path of the laser. And now I can see the laser beam. Here you can see that even this far away, the laser still shows up well.
Though it has spread out quite a bit as expected. Remember, the laser shoots in both directions. But what happens if I put a mirror here to reflect this beam back through the gap I start by putting a mirror in my vise. I do a quick test to see if it can reflect the laser beam. It does. I next put highlighter ink on a piece of paper and tape it to one end of the laser. I cut a hole where I see the beam hitting it from the other side. Now the beam goes through the hole.
I then arrange the mirror so that it can reflect the beam back through the hole. If the mirror is not lined up properly then I can see the beam reflected onto the paper. It's easy to gradually move the mirror to direct the beam back through the hole. And here's what it looks like when it hits this paper when the beam isn't being reflected back into the gap back. And here's what it looks like when it is. The larger size could have to do with the longer path the reflected beam has to travel,.
And so that beam has spread out more. I don't think it's a result of amplification since my understanding is that such an amplified beam should spread out less than the original. And before you ask, TEA stands for Transverse Electrical discharge at Atmospheric pressure, though I've sometimes seen it as Transverse Excitation at Atmospheric pressure. Well, thanks for watching! See my channel, rimstarorg for more tutorials like this. That includes one showing how to make this TEA laser. Another explaining how the TEA laster works. And in keeping with the topic of light,.
Stirling Engine Powered by Fresnel LensConcentrated Solar Power
Hi Gang! As promised, I tried out my Stirling engine with my fresnel lens, basically powering it with concentrated solar power. And as you'll see, it worked very well. For those not familiar with fresnel lenses, they take a large area of sunlight, in this case 2 feet by 4 feet, and focus, or concentrate it down to a smaller area. I wanted to keep my Stirling engine upright so that I could spray water onto its top plate. So before the sunlight got too focused, I intercepted it with this mirror and reflected it up onto bottom of the Stirling.
Engine's cylinder. I knew from the start that my fresnel lens doesn't focus too well, so that's why I built my Stirling engine with such a large diameter cylinder. And my cunning plan worked. To better show the parts, here's a bit of the assembly. Here's the fresnel lens by itself. I've attached a sunfinder to the side so I could make the fresnel lens point directly at the sun. Seeing this circle of light here tells me that it's in position. Then I attach the mirror. But first I turn it backwards to see what.
The concentrated sunlight looks like at that point. I want something squarish, that covers the middle of the mirror fairly well. I then turn the mirror back over to face the lens and use a clamp to hold it in place. Notice the use of welding goggles to protect my eyes. Looking at concentrated sunlight is like looking at more than one sun at the same time. I'm being careful not to reflect too much up here. I've already melted some of the frame there before. Next, to put the stand in place that will hold the Stirling engine.
And finally, the Stirling engine. To make sure the sunlight is being concentrated onto the cylinder, I look down into the big mirror. I want sunlight on the bottom of the big cylinder here, and not up here on the top plate. And here it is running. The purpose of this big steel top plate is to act as a heat sink. It takes the heat from the hot air in the big cylinder underneath and cools it. To help with the cooling I spray some water over the top plate.
Spraying water matters more indoors where I used an alcohol lamp to heat the big cylinder. The problem is that the hot fumes rise up the sides and heat the top plate too. But I found that the air movement outdoors made a huge difference on cooling. The outdoor air flowed over my big top plate, or heat sink, carrying the heat with it. Just as I'd hoped it would. I sprayed water anyway, but the top plate stayed relatively cool on its own, indefinitely. I also wanted to see if it would turn my homemade cooling fan.
And it did! It wasn't needed for outdoor cooling, but it served as a test load on the engine. Well, thanks for watching! See my channel, rimstarorg, for more tutorials like this. That includes one explaining how this Stirling engine works along with demonstrations of it running indoors. Another showing me assembling my fresnel lens support structure and mirror in more detail, and then using it as a solar cooker to fry some eggs for lunch. And one showing stepbystep how to make a simpler Stirling engine using a small tomato can for the cylinder.
How to Install Solar Panels Battery Banks for Solar Energy
Now we come to our battery bank for our Solar system. This one is made up of six volt cells combined in different ways to get the voltage we need for our individual inverters. We're going to be using the big Zantrax 1,000 watt this time, so we'll need two six volt cells, in series, to come up with that twelve volts. If you take your battery and connect a positive to a negative terminal that leaves you with a positive and negative terminal and you can get your twelve volts here. If you connect four batteries in series, positive to negative,.
You come up with twentyfour volts. And if you needed a fortyeight volt system, which is not uncommon, you'd simply expand and use more batteries. But for a twelve volt system we'll just use two. And, they're really the most dangerous part of the system. If you look down inside there, you can see a liquid and that liquid is sulfuric acid and will really seriously burn you and that's why we have a base here, Baking Soda, and if you get that acid in your eyes or in your clothing you can neutralize it with this. So, very.
Important to have this for safety. We can get a look at some of that acid here with the hydrometer, this is what you measure the actual specific gravity of the acid inside. And you can see we have several of these disks floating. We have about three disks floating with one at the bottom. So we know that this two batteries, or at least this battery, is about seventyfive percent charged. So, we're going to be very careful with that acid and stick this back here in our little cup. It's also important to note that the gases that.
Art Inspired Solar Cells MichEpedia MconneX
The solar industry is very, very focused on improving efficiency and reducing the cost. Our attempt here with this research is to propose a new way of looking at these structures and saying, well, you can use existing materials and nothing really needs to change very much. You just shape them in different ways that gives you this benefit. Kirigami is a Japanese art that's related to origami where origami is really about folding of things and kirigami is about cutting things. A colleague of mine who is an artist, Matthew Shlian, he had some interesting.
New shapes and when you pulled on the sheet of paper the cuts would sort of begin to buckle and deform in a very controlled way and so I realized at that point that we could look at that structure as a hyperminiaturized version of solar trackers. Conventional solar tracking has been used for many, many years. The mechanism itself cost quite a bit of extra money. What people end up doing as they say, well, since the mechanisms gonna cost all this extra money. we might as well put a really big panel and then eventually you end up with.
Something that's really big and really heavy. When you think about putting this type of thing on a rooftop it's very very difficult and in most cases is just purely impossible. It was a fairly lengthy process because the things that you do in paper don't automatically translate to other materials and so I started talking to my colleague, Stephen Forrest, about using some of their very high efficiency gallium arsenide solar cells. They're pretty thin, less than 2 microns thick that's ten to fifty times thinner than the thickness of a human hair. What the new design allows us.
To do in contrast to conventional tracking is it basically allows us to work with the same form factor. It doesn't catch the wind, it doesn't weigh any more than a conventional solar panel might and the thing that it buys you is that you can use less semiconductor to gather the same amount of energy. A third less material to generate the same total amount of energy that you would otherwise. Which means that in turn that I could decrease the cost of installation because there are fewer panels to install but you do require little bit of extra area. When you.
Multiply it by the total number of solar installations it's kind of like a billion dollar value proposition potentially. I guess it looks simple enough, kind of like something that you could do on your kitchen table, things don't have to be complicated for them to work. If this can be shown to be quite reliable, then the net benefit could be quite big. V.O. These candies which are already pretty soft should be about 10 to 100 times stiffer than the silicone. So the material that we're working with in the lab is really really soft.
Solar and wind hybrid power generation system SolarMill Tosmo co., ltd.
This is TOSMO Co., Ltd. Today, I will introduce a hybrid generator using both wind and solar panels. Our company is a sole agent in Asia of windstream technologes Corporation of America. We first exhibit this time. Feature is the wind power generation turning now and solar power. If it is only solar, it is not possible to generate electricity at night. It can generate electricity for 24 hours to get the wind. Wind speed will start power generation in 2m s. Windmill will stop automatically for safety, when wind speed exceeds 18m s.
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