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luminous:glossary [2008-02-23 13:16] – takufoamluminous:glossary [2008-02-23 19:08] – 218.186.8.12
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 **Solar (ir)radiation:** radiant energy emitted by the sun, particularly electromagnetic energy. About half of the radiation is in the visible short-wave part of the electromagnetic spectrum. The other half is mostly in the near-infrared part, with some in the ultraviolet part of the spectrum [1]. The portion of this ultraviolet radiation that is not absorbed by the atmosphere produces a suntan or a sunburn on people who have been in sunlight for extended periods of time.  **Solar (ir)radiation:** radiant energy emitted by the sun, particularly electromagnetic energy. About half of the radiation is in the visible short-wave part of the electromagnetic spectrum. The other half is mostly in the near-infrared part, with some in the ultraviolet part of the spectrum [1]. The portion of this ultraviolet radiation that is not absorbed by the atmosphere produces a suntan or a sunburn on people who have been in sunlight for extended periods of time. 
 - Daily total solar irradiation: describes the radiant energy emitted by the sun over all wavelengths that falls each second on 1 square meter outside the earth's atmosphere--a quantity proportional to the "solar constant" observed earlier in this century. It measures the solar energy flux in Watts/square meter.  - Daily total solar irradiation: describes the radiant energy emitted by the sun over all wavelengths that falls each second on 1 square meter outside the earth's atmosphere--a quantity proportional to the "solar constant" observed earlier in this century. It measures the solar energy flux in Watts/square meter. 
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 **Solar wind:** A stream of particles, mostly electrons and protons, flowing out from the Sun at speeds of 5-10 km/s. As it flows out, the solar wind accelerates and can reach speeds as high as 900 km/s. The solar wind is the result of the hot solar corona expanding into space. **Solar wind:** A stream of particles, mostly electrons and protons, flowing out from the Sun at speeds of 5-10 km/s. As it flows out, the solar wind accelerates and can reach speeds as high as 900 km/s. The solar wind is the result of the hot solar corona expanding into space.
 Sun-Earth distance: varies during the year, but on average it is approximately 150,000,000 km or 93,000,000 miles. Sun-Earth distance: varies during the year, but on average it is approximately 150,000,000 km or 93,000,000 miles.
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 **Ultra Violet-Light (UV):** means "beyond violet", from Latin ultra. UV-light is electromagnetic radiation with a wavelength shorter than that of visible light, with violet being the color of the shortest wavelengths of visible light, but longer than soft X-rays.  **Ultra Violet-Light (UV):** means "beyond violet", from Latin ultra. UV-light is electromagnetic radiation with a wavelength shorter than that of visible light, with violet being the color of the shortest wavelengths of visible light, but longer than soft X-rays. 
  
-**Wp - Watt-piek:** Max. theoretical power of a solar panel with a surface of 1m², measured at a temperature of 25°. A standard measure (unit) being used to compare the power of different solar panels. In practice a solar panel reaches in general only 80% of the Watt-piek power. +**Wp - Watt-peak:** Max. theoretical power of a solar panel with a surface of 1m², measured at a temperature of 25°. A standard measure (unit) being used to compare the power of different solar panels. In practice a solar panel reaches in general only 80% of the Watt-peak power. 
  
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  • luminous/glossary.txt
  • Last modified: 2008-02-24 15:33
  • by nik