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This video will describe this simple experiment and the challenges for a start-up that will turn this idea into large solar power plants to produce very large amounts of cheap electricity and thermal energy.
Of course, installing it on water is not an innovation, and floating solar power plants are one of the answers to the question of what solar energy will look like in the future.
Also, this idea of rotating on water is not an innovation, and for example, this solar power plant can rotate according to the movement of the sun across the sky, and it is made up of cells that have this solar panel and these floats. We understand that such rotations are commonly referred to by these terms, as are the rotations of similar solar panels which are also one of those types of solar power plants that may dominate in the future instead of motionless solar panels. It is well known that these rotations of solar panels according to the movement of the sun across the sky increase their electricity production by almost 1.5 times. But in case of rotation of these mirror dishes, their energy production increases by about 3 times compared to these motionless mirrors, which are studied on my KZbin channel.
One of my recent videos explained that mirror dish trackers become economically feasible when their cost is reduced below the level of 40 USD / sq.m. But unfortunately, we see that current prices are several times higher than that level, and this fact is not surprising because a tracker is made up of this large mass of steel and concrete, this expensive and complex hinge, and these devices for turning in two directions. At the same time, we can notice that the installation on water is radically cheaper, and let's take a look at what exactly is its innovation.
It is important to draw your attention to the fact that the rotation of a mirror dish from morning to evening should occur simultaneously in two directions: horizontally and vertically.
I have already said that this horizontal turn is not an innovation, but the innovation is these vertical turns. More precisely, the innovation is the fact that the vertical turns are performed by these floats. Now I will try to show you how the floats make those vertical turns, and you see that we can change the weight of this water inside the floats. We also understand that this is a very simple and cheap system, and one inexpensive water pump can control several thousand floats simultaneously and equally. It is interesting that this cell could change the vertical inclination through changes in the weight of water inside this float, or inside this float, or inside both floats.
Now I will show you the rotation of my mirror system during the day, and now it is morning, and these are the time points of one day from morning to evening.
These are the same actions, but with this screen, and these are the time points from morning to evening. You have the opportunity to see this vertical angle of the mirror and fix its horizontal angle against the background of this small building. In addition, you can verify that those rotations of the mirror are required to ensure that this spot of solar radiation is always located in the same place, despite the constant movement of the sun across the sky.
So, we must have several thousand similar cells that combine into a similar island, and our solar power plant should consist of several dozen or hundreds of similar islands. Each island has several inexpensive motors to rotate it, and 1 or 2 pumps to control the weight of water in its floats.
It is obvious that this mirror focuses solar radiation into this spot, which leads to its high temperature.
My previous videos often described the operation of such receivers, which are located at the focal point of the spot where solar radiation heats a heat-transfer fluid. For example, solar power plants of this type take thermal oil with a temperature of almost 300 ⁰C, and solar radiation increases the temperature to almost 400 ⁰C. The hot oil is transported to the center of the power plant, where a proportion of the thermal energy of the oil produces steam for a turbine with an electric generator. The rest of the energy of the oil heats huge masses of substance inside these heat storages to a temperature of almost 400 ⁰C, and this thermal energy produces steam for the same turbine in the evening and at night.
That is why such solar power plants work as well at night as during the day, unlike solar panels that only produce electricity when it is sunny. In addition, one of my old videos described heat storages based on concrete, sand and other cheap materials which provide the electricity generation for several non-sunny days in a row. Another of my videos described large heat storages based on soil or waste so that we can generate electricity during non-sunny winters as well as in summer.