Solar energy recovery system - using mixt. of capillaries with heat transfer fluid running through to give high temp

The capture, conversion and use of solar energy involves exposing fibre like capillary tubes to the radiation. These are formed into layers and fluids (liquids or gases) pumped through them. The fluids then absorb the heat from the surface of the capillary and allow it to be carried away for use. The capillaries absorb the long wave or IR components of the radiation into the fluid which then carries it along the surface actually exposed to the radiation. A convective current is established within the layer with liquid progressively moving towards the exposed surface which is the hottest. The capillaries can have a uniform absorptivity to wavelength or localised variations can be built in. Used to recover solar energy, of particular interest in horticulture where they can be used to provide partial shade with the heat so absorbed being put to good use. It can provide temps. >100 degrees C and therefore can be used for electrical power generation.