| 摘要 |
<p>A solar heat collecting arrangement includes at least one thermal battery 17 within a tube heated by solar radiation. The batteries are thermal-electric batteries such as sodium sulphur, sodium nickel, ZEBRA, etc, and the tube is annular with the space bounded by an inner tube wall 15 housing the batteries and the annular space 12 between the inner wall and an outer wall 14 carrying a heat transfer fluid which provides for heating or cooling of the thermal batteries; the tube outer being heated by solar radiation. The annular tube can be enclosed by a transparent tube 11, which may be borosilicate glass, and a space between the transparent tube and outer tube may be evacuated. The heat transfer fluid may be synthetic oil, molten salt, steam/water, etc. The inner tube may also include a ceramic tube 18 to provide insulation between the tube wall and the battery. The arrangement allows electrical energy to be stored during sunlight hours within the battery, which can be released during periods when solar radiation is not available.</p> |
