SOLAR HEAT COLLECTOR TUBE
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United States of America Patent
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Issued Date -
Feb 7, 2019
app pub date -
Nov 18, 2016
filing date -
Jan 29, 2016
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Abstract
A solar heat collector tube in which at least an infrared reflective layer, a sunlight-heat conversion layer and an anti-reflection layer are provided on the outer surface of a tube through the interior of which a heat medium can flow, wherein the infrared reflective layer in the solar heat collector tube is an Ag layer having Nb dispersed therein, the content of Nb being 0.1 at % to 31.8 at %.
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