Solucar Parabolic Trough Concentrating Collector<br />The physical characteristics of the concentrator modules are: Overall Module Size 7 ft. 6 in. x 20 ft.(2.3m x 6.1 m)<br />Concentrator Weight 178 lb ( 81 kg)<br />Concentrator Rim Angle72°<br />Materials of Construction: Aluminum Reflective SurfaceOptions: Aluminum acrylic Enhanced polished aluminumLightweight, low maintenance concentratorReceiver<br />The receiver specifications are: <br />Absorber Tube Outside Diameter 2.0 inch (5.08 cm)<br />Absorber Material SteelSelective Surface Blackened nickel <br />Absorptance 0.96 - 0.98<br />Emittance (80°C) 0.15 - 0.25<br />Absorber Envelope Material Borosilicate glass Envelope<br />Anti-Reflective Coating Sol gel <br />Transmittance 0.95 - 0.965 <br />Maximum Operating Temperature 550°F (288°C)<br />16<br />
Solar Radiation<br /><ul><li>Is Radiant energy from the sun (electromagnetic radiation) produced by a nuclear fusion reaction. Half of this radiation is in the Visible spectrum, the other half is mostly in the near infra-red spectrum of light.</li></ul>17<br />
<ul><li>Thermal systems use Diffuse and Direct Normal Light
The National Solar Radiation Database gives us TMY (typical meteorological year) radiation data for cities across the US
A computer simulation (TRNSYS) uses that data to give us the amount of radiation on a tilted surface.
Denver, 45 degree, 20.89 MJ/m2 day, which is Mega Joules (106) per square meter for a day (1839 BTU/ft2 day)