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Info on solar absorber coatings

2003

Dear Sir or Madam,

What is the substance of coated of solar absorber? how can I coat copper sheet?

Best regards,

Persian Energy Policy
Energy Saving - Tehran, Iran

2003

The coating can range from black paint (if the sun is so intense that you don't need to enclose the absorber in glass), through copper oxides and chrome plating, to black chromium plating--and a couple of other coatings as well. You really need to get some books on the subject, which include charts of absorptivity and emissivity and black body radiation coefficients and such things that I haven't taken the time to learn anything about myself :-)

But the most universal coating is probably black chromium plating, which I am told offers very good stability along with good properties for almost any installation.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
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