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In reference to solar energy systems, the angle at which direct sunlight strikes a surface; the angle between the direction of the sun and the perpendicular to the surface. Sunlight with an incident angle of 90 degrees tends to be absorbed, while lower angles tend to be reflected.
Industry:Energy
In reference to solar energy systems, the angle that a solar collector is positioned above horizontal.
Industry:Energy
In reference to solar photovoltaic cell manufacture, a method of growing a large-size, high-quality crystal whereby coils heat a polycrystalline ingot placed atop a single-crystal seed. As the coils are slowly raised the molten interface beneath the coils becomes a single crystal.
Industry:Energy
In reference to solar photovoltaic devices, a material that is composed of a single crystal or a few large crystals.
Industry:Energy
In reference to solar photovoltaic devices, the growth of one crystal on the surface of another crystal. The growth of the deposited crystal is oriented by the lattice structure of the original crystal.
Industry:Energy
In reference to solar thermal collectors, the condition where the heat transfer fluid is flowing through the collector loop under normal operating conditions.
Industry:Energy
In reference to solid biomass fuels, such as wood, having zero moisture content.
Industry:Energy
In reference to wind energy, for any given instant, the power available in the wind is proportional to the cube of the wind velocity; when wind speed doubles, the power availability increases eight times.
Industry:Energy
In refrigeration, an evaporating temperature of 5 degrees Fahrenheit (F), a condensing temperature of 86 degrees F., liquid temperature before expansion of 77 degrees F., and suction temperature of 12 degrees F.
Industry:Energy
In solar heating systems, a type of solar collector in which air is heated in the collector.
Industry:Energy
