Solar fluid heater with electromagnetic radiation trap

Details Solar fluid heater with electromagnetic radiation trap Solar fluid heater with electromagnetic radiation trap

1976-03-08

1977-05-31

Sprague, Kenneth W.

Stoves and furnaces

Heaters

Surface

350288, 350299, F24J 302

Patent

active

040262731

ABSTRACT:
A solar fluid heater including a radiation trap for concentrating solar radiation which has been focused on or near a line at the center of a transparent pipe assembly containing the fluid to be heated is described. The pipe assembly may include one or more transparent pipes containing one or more sets of reflective fins which are disposed in direct heat exchanging contact with the fluid to be heated. The focused radiation entering the pipe assembly experiences multiple reflections off one set of reflective fins therein, thus concentrating the solar radiation. The reflective fins are made absorptive near the apex to provide for absorption of the solar radiation, thereby converting it to heat. The fins are in direct contact with the fluid to be heated, thus, maximizing the transfer of heat to the fluid.

REFERENCES:
patent: 1575309 (1926-03-01), Anderson
patent: 3089670 (1963-05-01), Johnson
patent: 3869199 (1975-03-01), Cummings
patent: 3923039 (1975-12-01), Falbel
patent: 3964464 (1976-06-01), Hockman

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