Look at the hot one Solar chair How does it work?

The company is involved in the application field of solar energy and has developed a concentrating solar chair. Let's talk about the working principle of the solar chair:

Solar cells are devices that directly convert light energy into electrical energy through photoelectric effect or photochemical effect. Thin film solar cells based on photoelectric effect are the mainstream, while wet solar cells based on photochemical effect are still in the embryonic stage. Generally, there are two ways of photoelectric conversion:

1. The light heat electricity conversion mode uses the heat energy generated by solar radiation to generate electricity. Generally, the solar collector converts the absorbed heat energy into steam of working medium, and then drives the steam turbine to generate electricity. The former process is light heat conversion process; The latter process is the thermal electric conversion process, which is the same as the ordinary thermal power generation The disadvantage of solar thermal power generation is its low efficiency and high cost. It is estimated that its investment is at least 5 to 10 times more expensive than that of ordinary thermal power plants. A 1000 MW solar thermal power plant requires an investment of 2 to 2.5 billion dollars, with an average investment of 1 kW of 2000 to 2500 dollars. Therefore, at present, it can only be applied to special occasions on a small scale, while large-scale utilization is very uneconomical and cannot compete with ordinary thermal power plants or nuclear power plants;

2. Direct conversion of light to electricity, direct conversion of light to electricity This method uses the photoelectric effect to directly convert the solar radiation energy into electrical energy, and the basic device of light to electricity conversion is the solar cell. Solar cell is a device that directly converts solar energy into electrical energy due to photovoltaic effect. It is a semiconductor photodiode. When the sun shines on the photodiode, the photodiode will convert solar energy into electrical energy and generate current. When many cells are connected in series or parallel, they can become a solar cell array with relatively large output power. Solar cell is a promising new power source, which has three advantages of cleanness and flexibility The solar cell has a long life. As long as the sun exists, the solar cell can be invested once and used for a long time; Compared with thermal power generation and nuclear power generation, solar cells will not cause environmental pollution; Solar cells can be large, small and medium-sized at the same time, as large as a million kilowatt medium-sized power station, as small as a solar battery pack for only one household, which is unmatched by other power sources.

In China, the solar power industry is also strongly encouraged and supported by the government. In March 2009, the Ministry of Finance announced that it planned to subsidize large-scale solar energy projects such as solar photovoltaic buildings. With the development of solar energy industry, the application of solar energy has penetrated into many devices, such as solar water heaters. How to make full use of solar energy Solar leisure chair On the other hand, this has also become a common concern of the current society.