Passive Thermal Daylight Harvester (PTDH) - Patent Pending
The assembly is a plurality of configurations permanently mounted to building wall exteriors at perimeter rectangular window openings. The angle and the depth of each of the PTDH sections is selected to collectively minimize solar light exposure from the vernal equinox to the autumnal equinox and maximize solar light exposure from the autumnal equinox to the vernal equinox.
PTDH Small Office Building Application
ORNL PTDH Test