Solar Energy: Collector Systems
Variation of Incident Sunshine with location in the US

Solar Radiation Data Base

Flat Plate Collector Systems:

Heat transfer to a circulating liquid (antifreeze) to be used as supplmental space heating source in the Winter

Basic System Design

On average, a house loses 1 BTU per cubic foot per degree day

Energy losses in a flat plate collector system:

Orientation of collector with respect to sun is crucial part of overall efficiency

Focussing Collectors:

Not practical for the homeowner --> somewhat dangerous due to high temperatures.

Parabolic reflectors (heliostats) are pretty expensive

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