| 摘要 |
This invention deals with improvements in the fabrication and operation of a solar water-heating system utilizing semicylindrical reflecting surfaces. The semicylindrical reflecting surfaces are formed from foamed or expanded plastics with a combination bearing and seal at each end, through which the longitudinal, heat collecting tubes pass. A center, fixed support bearing that maintains the sealed enclosure is provided for longer heat collecting tubes. A linear actuating linkage is provided for rotation to follow the sun' s motion daily and seasonally. The measurement of differential temperatures within the enclosure of the reflecting surface, controls operation of the circulation pump that circulates the heated liquid to a heat exchanger.
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