| 摘要 |
A solar energy trap comprises a chamber (70) defining an internal volume, comprises a plurality of elongate portions (112-116) joined serially at alternate ends to neighbouring elongate portions by semi-circular portions (121-125), a first of the plurality of elongate portions being joined to a serially last of the elongate portions by a U-shaped portion (117), to form a re-circulating chamber means. The chamber is double walled to form an external coaxial jacket. An inlet port (12) communicates with the internal volume, wherein the inlet port comprises an inlet tube (126) communicating with the internal volume and a longitudinal axis of the inlet tube is inclined at an acute internal angle to a longitudinal axis of an elongate portion of the chamber means arranged for solar energy (13) admitted through the inlet port (12) into the internal volume to be repeatedly reflected within the chamber until substantially all the entering solar energy is absorbed by the chamber. The chamber further comprises means for absorbing photons entering the chamber.. |
