APPARATUSES AND METHODS FOR PROVIDING A SOLAR THERMAL ENERGY ABSORBER TUBE FOR A SOLAR COLLECTOR SYSTEM
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United States of America Patent
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app pub date -
Jan 11, 2013
filing date -
Jan 12, 2012
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Abstract
Various embodiments provide an absorber tube that comprises an inner tube having an exterior surface, at least a portion of which contains a plurality of coating layers. The absorber tube also includes an outer tube spaced apart from the inner tube so as to define a cavity between the two. At least one of the coating layers may be configured to substantially impede migration of gaseous particles from the interior surface and into said cavity. At least one of the coating layers may be a reflective copper coating that is adhered to the exterior surface via an electrical charging process. An absorber tube comprising a connecting member between central and end portions of the tube is also provided. The central portion may be formed from carbon steel, while remaining portions are formed from stainless steel. Coating layers may be likewise adhered to only the central portion.
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