Translation for '
W m2' from English to Portuguese
Usage Examples English
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- It is expressed in watts per square metre kelvin: W/(m2⋅K).
- For the sun at the zenith, this gives 947 W/m2. However, another source states that direct sunlight under these conditions, with 1367 W/m2 above the atmosphere, is about 1050 W/m2, and total insolation about 1120 W/m2.
- His estimate was 1228 W/m2, very close to the current estimate of 1367 W/m2.
- In experiments under direct sunlight, the coatings achieve 6 °C sub-ambient temperatures and cooling powers of 96 W/m2.
- 4 W/m2 relative to pre-industrial values, partially offsetting the larger (about 2.4 W/m2) warming effect of greenhouse gases.
- Clouds increase the global reflection of solar radiation from 15% to 30%, reducing the amount of solar radiation absorbed by the Earth by about 44 W/m2.
- Confusingly, the Poynting vector is sometimes called the "power flux", which is an example of the first usage of flux, above. It has units of watts per square metre (W/m2).
- the area of a circle), the globally and yearly averaged TOA flux is one quarter of the solar constant and so is approximately 340 watts per square meter (W/m2).
- 35 (± 10%) W/m2 for Earth's atmosphere.
- Sunlight in space at the top of Earth's atmosphere (see solar constant) is composed of about 50% infrared light, 40% visible light, and 10% ultraviolet light, for a total intensity of about 1400 W/m2 in vacuum.
- 485 W/m2.
- If the extraterrestrial solar radiation is 1367 watts per square meter (the value when the Earth–Sun distance is 1 astronomical unit), then the direct sunlight at Earth's surface when the Sun is at the zenith is about 1050 W/m2, but the total amount (direct and indirect from the atmosphere) hitting the ground is around 1120 W/m2.
- The SI unit of intensity, which includes sound intensity, is the watt per square meter (W/m2).
- Thus the solar energy arriving at the surface with the sun directly overhead can vary from 550 W/m2 with cirrus clouds to 1025 W/m2 with a clear sky.
- The conditions are specified in standards such as IEC 61215, IEC 61646 and UL 1703; specifically, the light intensity is 1000 W/m2, with a spectrum similar to sunlight hitting the earth's surface at latitude 35° N in the summer (airmass 1.5) and temperature of the cells at 25 °C.
- 50 MJ/m2 over the period from 1979 to 2010, 1.31 MJ/m2 in the Northern Hemisphere with 1.70 MJ/m2 in the Southern Hemisphere.
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Contains translations by TU Chemnitz and Mr Honey's Business Dictionary (German-English only).
Links to this dictionary or to individual translations are very welcome!