交大开元太阳能

The use of solar energy for mankind has a long history. As early as in China over 2000 years ago in the Warring States period, four of steel aware of the use of mirror to focus sunlight ignition; to the use of solar drying of agricultural products. In the current development, the use of solar energy has become increasingly widespread, which includes the use of thermal solar light, solar energy using photovoltaic and solar energy, such as the use of photochemical. The use of solar passive use (photothermal conversion) and photoelectric conversion in two ways. A new solar energy power generation and renewable energy use.

    The use of solar, photovoltaic conversion of sunlight into power, the use of solar water heaters, the use of solar energy water heating. hot water and use electricity, use of solar energy for desalination of sea water. Now, the use of solar energy is not very popular, the use of solar power still has the problem of costs High, low conversion efficiency. But solar cells for satellites to provide energy to be applied.

Principle

     Solar is the sun's nuclear fusion reactions within a continuous process of the energy generated. Earth orbit, the average intensity of solar radiation to 1367w / ㎡. Earth's equatorial circumference to 40000km, in order to calculate the Earth's energy was up 173000TW. At sea level standard for peak intensity 1kw/m2, a point on the surface of the Earth's 24h annual average radiation for 0.20kw / ㎡, which is equivalent to 102000TW have the energy dependence of these human energy to survive, including all other forms of Renewable energy (with the exception of geothermal energy resources), although the total amount of solar energy resources is the human equivalent of the energy used by 10,000 times, but low energy density of solar energy, and it vary from place to place, from time to time change, this is the main problem in development and utilization of the solar energy. These features of solar energy make it certain restrictions as an integrated energy system.

     Although solar radiation energy to the Earth's atmosphere is only the total energy of the 22 billionth of radiation, but has been as high as 173000TW, that is to say every second exposure to the sun's energy on Earth the equivalent of 5,000,000 tons of coal. Earth wind energy, hydropower, ocean thermal energy, wave energy and biomass energy, as well as part of the tidal energy from the sun are; even the earth's fossil fuels (such as coal, oil, gas, etc.), fundamentally speaking is Since ancient times down the store solar energy. solar energy so broad coverage is very large, is limited to a narrow solar radiation of the sun light and heat, and optical direct Photochemistry conversion.

      Solar energy is renewable energy. It is rich in resources, both free of charge, no transport, no pollution to the environment. Mankind has created a new form of life, society and a human energy to reduce pollution of the times.

Multi-layer optical cell

   Only a single frequency of light on the efficiency of the battery is low. In light of the high-frequency energy, why not use electricity?

   Materials and manufacturing processes on economic issues. Now, Mars sent to Mars by the Mover of this multi-layer optical cell (Multi-layer Solar Cell) for more than three years, is still functioning well.