Patent ID: 6342127
Filing Date: 2002-01-29
Classification: B01D,C02F,Y02A,Y10S

Abstract:
A distillation apparatus for use with solar radiation; said apparatus comprising: an enclosed tube for the flow of liquids, said tube having an inner surface and an outer surface and having a central axis running the length of said tube, said tube being of rigid construction and having an upper section and a lower section; said lower section for holding liquid in said tube; said upper section having an indented portion so as to form a â€œvâ€  shaped section above said central axis of said tube, a trough portion in connection with the inner surface of said tube and running parallel to said central axis, said trough portion having a curved surface so as to collect liquids that condense on said upper section, said tube being of substantially air tight construction and having a means for reducing the pressure inside said tube; said trough portion having a midline bisecting the length of said trough and said midline being oriented at an angle with respect to horizontal so as to urge the flow of liquid in one direction; wherein said upper section is composed of a photochromic material so as to get darker in color in response to changes in the intensity of the solar radiation.