| 摘要 |
<p>The solar water heater, providing washing water comprises a cylindrical solar heat collector (6), inside which is a concentric annular absorber (7) through which a heat-conductive fluid flows. A central tank (1) contains the water to be heated and a heat exchanger is connected to the absorber, to form a closed circuit transferring heat from the fluid to the water. There can be a cylindrical vessel clad with insulating material accommodating water and heat exchanger, the latter being formed by a pipe coil. The vessel is enclosed by a cylindrical outer one coated with light-absorbent material, in turn enclosed by transparent material forming the outer cover.</p> |
