Power generation principle
Molten salt tower photothermal power generation principle: According to the principle of solar photothermal power generation using the "light-heat-electricity" power generation method, thousands of fixed sun mirrors reflect sunlight to the surface of the heat absorber located at the top of the solar tower, forming a high temperature of more than 800 ℃. Through the heat transfer medium, steam of over 500℃ is generated, which drives the steam turbine to generate electricity.
مقدمة
The first thing you should remember about Dunhuang is that it is a place with a rich history and culture, especially during the Xia Shang Zhou period, when it left traces of nomadic life and is a depository of our cultural treasures. The actual fact is that it is a warm temperate arid climate, so there is a large area of desert in the area, and in bad weather, there are even large dust storms, often prone to natural disasters.
And this time in Gansu Tibet of this super project, it is in this seemingly desolate desert, and still in a sunny place, in turn, provides a good base site for solar power generation. In Dunhuang twenty kilometers to the west, there is a so-called "super mirror power station", up to 100 megawatts of power station, it has the ability to generate electricity within 24 hours without interruption, is China's domestic solar power generation on the most powerful a power station, but also represents the current stage of China in this field can reach level.
The total area of the mirror field in this power station reaches more than 1.4 million square meters, which contains more than 12,000 fixed sun mirrors, and also has a 260m high heat absorption tower.
Development
In fact, the research and development of this super project involves more than 30 domestic and foreign new energy companies, and these companies have been working on the photovoltaic industry in this area since as early as 2009. Dunhuang City photoelectric light industry from nothing to have, from small to large, achieved by the "bonsai" to "landscape" of the magnificent transmutation, built the largest concentrated continuous area of the domestic megawatt solar power demonstration base.
With Dunhuang photoelectric park infrastructure and the continuous improvement of the outgoing channel, the park industry agglomeration benefit further highlighted, with the domestic leading solar energy development and application technology of new energy enterprises again focus on Dunhuang. It is also under their continuous efforts, now in this area of Dunhuang, can be seen in China's domestic, can be said to be the largest area, the most spectacular solar power demonstration base.
As one of the first photothermal demonstration stations in China, this is the largest installed capacity photothermal power station in Dunhuang and also in Asia, where newer and advanced technologies are used. The implementation of this project project also makes the original relatively desolate place, now become a construction area, the desert was not looked upon as an empty environment, but now make a huge contribution.
Advantages
In fact, in the early days, solar power generation has certain defects, so it is not good, especially this type of power generation relies on the conversion of sunlight, once encountered with bad weather is very likely to cause very low efficiency of power generation, too many uncontrollable factors, plus the construction costs of solar power generation is also very high, so in the beginning, solar energy is not favored.
But such weather requirements in Dunhuang is very easy to meet, in this region, because of its own temperature difference, the length of sunshine is relatively longer, the climate of the four seasons, the annual sunshine hours can reach more than three thousand hours.
Therefore, in this area, the sunny weather is its biggest advantage, and it is also the highest solar radiation area in China, which must be the reason why the construction of this large-scale power station in China will be chosen in this place, before, and who could have thought that now China has been able to achieve 24-hour all-day power generation, and in this regard can achieve the scale and technology The level of technology has even made domestic and foreign experts amazed by it.
At the same time, the construction of this power station is very beneficial to the local area, because it converts a very rich solar energy resources, so that the annual power generation enough to reach about 400 million degrees, which can make the local area every year to reduce carbon dioxide emissions of more than 300,000 tons, this data is equivalent to the effect of afforestation area of 10,000 acres to produce.
دلالة
For our country, this is the power station designed, invested and built by our own enterprise, so for our country in this field, it has an important significance and leading role, especially for our country in the future development also has a very big promotion role.
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