DIPPING TYPE SOLAR HEAT RECEIVING UNIT FOR HEATING SEAWATER BY SOLAR LIGHT

摘要

PURPOSE:To permit the titled unit to receive sun light and to heat seawaters located at positions upper than the position where the unit is dipped by dipping a solar heat receiving body and solar heat receiving fins for promoting the function of the solar heat receiving body under the surface of the sea. CONSTITUTION:A solar heat receiving body 1 is constituted of some of timber, bamboo, metal, ceramics and fiber, and is formed into a grid shape or a plate shape having intervals or holes through which seawaters can pass. The solar heat receiving body 1 is dipped within approximately 2m under the surface of the sea in a fixed or floating state. Solar heat receiving fins 2 may be eliminated. Solar light is electromagnetic waves extending in infrared ultraviolet ray regions having a wave-length of 0.2-2mum. A so-called thermic rays existing in the infrared ray region have a low function for permeating water, and are substantially absorbed on the water level. However, approximately half of the energy of sun light exists on the side of a wavelength shorter than that of the thermic rays, and has a large permeating function under water and reaches a deep place under seawater level and is absorbed, where it is converted into heat. Thus, the apparatus has function to suppress the mixing of seawaters at the upper part with those at the lower part on the border of the deep place under the surface of the sea, and has also function to hold the temperature difference between both seawaters.