Military Technology

Molten salt tower photothermal power station, as the name suggests, actually uses molten salt to generate photothermal power. Its main ingredients are potassium nitrate and sodium nitrite. The form of these salts is very stable and can be used between 290 degrees and 565 degrees. Maintain a flowable molten state.

Relying on thousands or even tens of thousands of large mirrors (heliostats) around the heat collecting tower, the sun's rays are concentrated on the heat collecting tower to generate high temperatures, thereby heating the molten salt transported here to 565 degrees, and then being compressed by the pump Transported to high temperature tanks for storage.

When it is necessary to generate electricity, the compression pump will send the molten salt material stored in the high-temperature tank to the steam chamber, and then start to boil water. The boiling point of water is only one hundred degrees, so when it absorbs heat, it will produce Steam, steam drives the steam turbine to rotate, and the steam turbine is directly connected to the generator to generate electricity.

When the temperature of the molten salt used to boil water reaches about 290 degrees, the system will then control the compressor to transport it to a low-temperature storage tank for storage, and then wait to be transported to the heat collecting tower again to collect heat.

In fact, to put it bluntly, it is to use thermal energy to boil water, and then push the turbine to rotate and drive the generator to generate electricity. Simply put, it is to boil water in a different way.

That's right, it's boiling water. Even the most advanced nuclear power plants are essentially boiling water. Not to mention the thermal power stations that currently supply half of the country’s electricity. They also boil water.

There is also a geothermal power station that also boils water to generate electricity.

These four types of power stations all boil water, but they use different energy sources. Thermal power stations mainly use coal, which is the main power generation of thermal power stations at present. In addition, there are few oil and natural gas, biogas and other biofuels to generate electricity, but they are only a minority. But no matter what, while thermal power stations provide electric energy, they also bring about very serious pollution problems.

Although the emission technology of thermal power plants has been improving, emissions still continue, even causing serious air pollution problems.

As for geothermal power stations, they actually use geothermal heat to generate electricity directly. To put it simply, a power station is built on some high-temperature hot springs, and the high-temperature hot water in the hot springs is directly pumped up to drive the turbine to rotate and drive the generator to generate electricity. This can be regarded as a kind of clean energy, which does not require any consumption. However, the conditions are relatively harsh and it must have suitable geothermal resources, so it is very rare.

Nuclear power plants, as the name suggests, use nuclear reactors to generate electricity. This is currently a relatively clean energy source and will also be the main energy source on the earth in the future. It should be said that this is the most efficient among the four types of water-burning power generation, and the power generation capacity is also the largest, which is a lot.

But, the shortcoming is also very fatal, that is, there are certain risks. Once a problem occurs, it will cause serious environmental pollution. For example, a nuclear power plant in Japan was damaged due to earthquakes and tsunamis, and eventually polluted most of the world's oceans.

The last step is the treatment of nuclear waste. At present, human technology is unable to carry out harmless treatment, and it can only be carried out by deep burial. Drill a hole several hundred meters or several kilometers deep and bury it underground to reduce pollution to the ground.

Even so, this is still a very responsible and relatively safe approach for many countries. There are also some rogue countries that, in order to reduce the cost of processing these nuclear wastes, actually sank directly to the bottom of the sea.

Who knows whether these nuclear waste tanks will be damaged due to seawater corrosion, submarine volcanic eruptions, pressure, etc., causing the waste to leak and pollute the ocean.

But people don't seem to care. After all, in the last century, they dropped dozens of these eggs into the ocean to fry fish. It is said that the Godzilla in the world-famous comics and film and television dramas was born from the radiation mutation produced by these eggs.

I don’t know if reality will emerge, who knows.

The molten salt tower solar thermal power station is a new clean energy power generation method, and people are usually used to compare it with photovoltaic power stations. After all, the two are very similar in appearance, both use solar energy, and the appearance of photovoltaic panels and fixed light mirrors are actually similar, and they are both clean energy.

However, compared with photovoltaic power plants, which are more limited and rely entirely on the weather, so the power generation is unstable and unable to sustain output, the molten salt tower photothermal power plant can store heat through molten salt material. , so its power output is very stable and not subject to changes in day and night and weather changes. It is a very ideal, efficient, and low-cost clean energy source.

In fact, Wu Hao and the others have built several new super energy storage power stations at the base to store the power generated by these photovoltaic power stations for reasonable deployment and use. However, this kind of super energy storage power station is expensive to build and has relatively high operating costs.

The overall construction and operating costs of molten salt tower solar thermal power stations are relatively low, so they are very suitable for large-scale use.

Of course, this molten salt tower solar thermal power station also has some shortcomings or controversies. That is it creates light pollution. Thousands of meters or even tens of thousands of mirrors concentrated on a heat collecting tower will produce a bright spot that is much brighter than the sun. This bright spot can be seen clearly for dozens or hundreds of kilometers, and is even a little dazzling. It is even said that it can be seen from the space station.

In addition, the entire molten salt tower solar thermal power station occupies a huge area. The temperature of the light concentrated by these mirrors is very high, which will directly burn or even scorch the birds passing by. Therefore, the surrounding area of ​​the molten salt tower solar thermal power station will be There were many dead birds, so it was criticized by many environmentalists.

However, this place stretches out next to the desert, there are relatively few birds, and the impact of nature is relatively small.

In addition, in order to prevent birds from approaching, a low-frequency generator will be installed in the molten salt tower photothermal power station. This low-frequency sound cannot be heard by humans, but birds are very sensitive to it. With this low-frequency generator, birds will not actively approach.

This low-frequency generator is a gadget they have come up with, and it has been installed at the airport. After all, the airport is also a place that is very afraid of birds, so in order to protect the safety of the aircraft and the birds, technicians also installed this low-frequency generator in the airport.

At present, this technology and related products have been tried out in dozens of domestic civil and military airports, and have achieved very good results. After obtaining the relevant permission from the civil aviation administration department, it will be promoted and expanded to other airports for use.

In addition to airports, this low-frequency generator can also be used in other areas, such as buildings, to prevent birds from settling in and maintain the plot of the building's facade. Birds live on the facades of many buildings, resulting in a large number of birds that pollute the surface and cause health and disease problems.

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