Solar energy is the energy generated by the continuous nuclear fusion reaction process inside the sun
Release Time：
2022-07-12
Solar energy is the energy generated by the continuous nuclear fusion reaction process inside the sun. The average solar radiation intensity in Earth orbit is 1369w/m2. The circumference of the earth's equator is 40076 kilometers, so it can be calculated that the energy obtained by the earth can reach 173000 TW. The standard peak intensity at sea level is 1kw/m2, and the annual average radiation intensity at a point on the earth's surface for 24h is 0.20kw/m2, which is equivalent to 102000TW of energy. Although the energy that the sun radiates into the earth's atmosphere is only 2.2 billion times of its total radiation energy, it has reached 173000 TW, that is, the energy that the sun shines on the earth every second is equivalent to 5 million tons of coal, and the energy that shines on the earth every second is 1.465 × 10 ^ 14 joules. Wind energy, water energy, ocean temperature difference energy, wave energy and biomass energy on the earth all come from the sun; Even fossil fuels on the earth (such as coal, oil, natural gas, etc.) are basically solar energy stored since ancient times, so the broad sense of solar energy covers a very wide range, while the narrow sense of solar energy is limited to the direct conversion of solar radiation energy into light, heat, photoelectric and photochemistry
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