SOLAR HEATED BUILDING DESIGNS FOR CLOUDY WINTERS

摘要

2136759 9323987 PCTABS00028 A building (20) including high efficiency transparent insulation (30) and optical shutter solar collector (22) (HETIOSSC) to effectively control heat loss and gain in a passively-solar climate control system. HETIOSSC includes a layer of protective glazing (26), a transparent insulation (30), an optical shutter (36), an optional solar radiation absorbing material (37) and optional heat storage elements. When the building and its heat storage are too warm, the optical shutter layer becomes opaque to prevent overheating. During cloudy and cold days, HETIOSSC still has a solar transmission and insulation efficiency great enough to collect sufficient sunlight for heating. Location of HETIOSSC on the roof, rather than the walls, does not alter shape and orientation of a building.