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luminous:glossary [2008-02-23 13:16] – takufoam | luminous:glossary [2008-02-23 19:08] – 218.186.8.12 | ||
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**Solar (ir)radiation: | **Solar (ir)radiation: | ||
- Daily total solar irradiation: | - Daily total solar irradiation: | ||
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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 " | **Ultra Violet-Light (UV):** means " | ||
- | **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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