When choosing a solar hot water system, it is important to understand the difference between direct radiation and global radiation. This is important because solar concentrators, as SolarBeam rely on direct solar radiation to create energy, while the flat panels are based on global radiation, which is a more diffuse energy.
To see if the direct radiation is much more in your area, visit this link: www.solartronenergy.com

Direct radiation, diffuse and global
The radiation incident on a surface directly from the sun, without suffering changes in direction, is known as direct radiation, but all that comes AFTER solar radiation being reflected or emitted infrared radiation even for the molecules AFTER suffering a heating effect Absorption of solar radiation, is known as diffuse radiation.
So the solar radiation at ground level consist of a direct component, then comes to us without being deviations, and a diffuse, disseminated throughout the celestial hemisphere, apparently it can seem ste who radiates. The sum of these two components in a horizontal plane is called global radiation
The clouds spread or scatter solar radiation more better than air, so that one day cloudy all the radiation that we can get to be diffuse radiation. In one day clear the direct radiation is several times higher than diffuse.
The solar radiation reaching a plane located at the surface of a rod gives another variation which is mainly due to change in cloudiness. To give an indicative figure, in das cloudy, when the solar radiation received by the surface is mostly diffuse, the value of this radiation is usually much smaller in kWh / m, while on a sunny day value the radiation is much higher in kWh / m This will vary depending on the time of the day, area and Estacin Geographically the year. Therefore the direct radiation is the solar thermal energy transmitted ms and can best be exploited.
We also have to take into account the time variation of solar radiation received by a horizontal plane about the Earth’s surface is due mainly to the movement of Earth’s rotation. To represent the movement of rotation we use the “angle schedule.” The hour angle measures the distance, expressed in degrees, between the Earth’s meridian plane containing the Sun and has an observer whose time we determine.
The thickness of the atmospheric layer that must pass through the radiation to reach the surface along the rod given by the movement of rotation, so that, while early in the morning this layer is thick, at noon (solar angle equal to 0) the thickness is minimal and, consequently, the solar radiation received is maximum.

It is by this that solar energy systems can produce thermal energy through the direct radiation, since the global diffuse radiation fails to provide enough energy to properly operate the equipment, or generate the needed energy due to radiation and a direct edge technology can take advantage of this solar thermal energy.
We have the example of a technological base company that has designed a machine called solarbeam, its features are first concentration is a solar thermal equipment that directs all direct radiation in a single focal point to concentrate all the energy at that point. This team also has a system of dual axis solar tracking, which lets you track the sun throughout the day being able to harvest more power.

If you want more information about the use of thermal solar energy visit http://www.solartronenergy.com/es

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