Solar-energy collector
AssigneeBFG Glassgroup
InventorsOtto Stehl, Hans Spakowski
Life of this patent
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Abstract
A solar-energy collector has a frame receiving a double-pane unit consisting of a pair of transparent panes hermetically sealed together and defining the flow chamber for the heat-collecting fluid. The frame also supports a cover pane which defines, with the aforementioned unit, a heat-insulating dead-air space. The pane of the unit turned toward the sun is provided with an emission-limiting coating on its side facing the dead-air space while the pane of the unit turned away from the sun is provided with means for increasing its heat-absorption capacity. The frame members at opposite sides of the collector can be provided with fittings for connecting the collector to a source of the heat-absorbing fluid and to the output line of the collector.
Claims12
A solar-energy collector comprising:
- a double-pane insulating unit having a first pane with first and second surfaces transparent to solar energy and with said first surface turned toward the sun and a second pane turned away from the sun, said panes defining between them a flow chamber for a fluid adapted to pick up heat from incident sunlight;
- a cover pane spaced from said first pane and defining a gas-containing dead-air space therewith;
- inlet and outlet fittings connected to said flow chamber for admitting said fluid to and discharging said fluid from said flow chamber;
- an emission-limiting coating on said first surface of said first pane adjoining said dead-air space;
- and
- heat-transfer-promoting means in said flow chamber between said first and second panes.
Dependencies are inferred from the claim text.