Selective solar energy absorption

Details Selective solar energy absorption Selective solar energy absorption

1976-07-30

1977-07-19

Kaplan, G. L.

Stoves and furnaces

Ovens

Domestic

204 35R, 204 44, 428687, 428935, F24J 302, C25D 356, C25D 548, B23P 300

Patent

active

040362060

ABSTRACT:
Superior solar energy absorption selectivity is found with blackened white brass electroplated surfaces in which the white brass contains 0.5 to 20% by weight copper, balanced zinc, which has been electroplated using certain brighteners such as 1-benzl pyridinium, 3-carboxylate and then blackened with a weak solution of nitric acid.

REFERENCES:
patent: 2817627 (1957-12-01), Ostrow
patent: 3920413 (1975-11-01), Lowery
R. E. Svadlenak, Plating, pp. 565-568, June 1974.

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