Flat plate solar collector

F - Mech Eng,Light,Heat,Weapons – 24 – J

Patent

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Details

F24J 2/24 (2006.01) F24J 2/26 (2006.01) F24J 2/46 (2006.01) F24J 2/50 (2006.01)

Patent

CA 2279423

A flat plate solar collector (10) comprising a planar glazing (12) and a rear housing (13) formed into a number of semi-circular cells (14) to receive fin- tube absorbers (21) with minimal direct contact, the glazing (12) being a low iron glass with an anti-reflective exterior coating (31) and a low emissivity interior coating (32), the glazing (12) being directly supported by the rear housing cells (14), the interior wall of the rear housing (13) and the lower side of the fin-tube absorber (21) having low emissivity surfaces. At least one radiation shield member (51) having low emissivity upper and lower surfaces is positioned between the fin-tube absorber (21) and the rear housing (13). The collector (10) is evacuated by atmosphere control means (99) also capable of reintroducing atmosphere into the collector (10) to control internal temperature.

Capteur solaire plat (10) comprenant un vitrage plan (12) et un corps arrière (13) constitué d'un certain nombre de cellules semi-circulaires (14) qui contiennent des absorbeurs (21) composés d'un tube et d'une ailette, en contact direct minime avec lesdites cellules, le vitrage (12) étant un verre à faible teneur en fer pourvu d'un revêtement externe antiréfléchissant (31) et d'un revêtement interne à faible émissivité (32), ce vitrage (12) étant directement supporté par les cellules (14) du corps arrière, la paroi interne du corps arrière (13) et la face inférieure de l'absorbeur (21) à tube et à ailette comportant des surfaces de faible émissivité. Au moins un élément de protection (51) contre les rayonnements possédant des surfaces supérieure et inférieure de faible émissivité est positionné entre l'absorbeur (21) et le corps arrière (13). Le vide est fait dans le capteur (10) par un dispositif de régulation de l'atmosphère (99) qui est également capable de réintroduire de l'atmosphère dans le capteur (10) afin de réguler la température interne.

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