Abstract: Solar radiation is an inexhaustible, powerful, and ecologically clean source of energy, which is still inefficiently used. L atent heat storage is one of the most efficient ways of storing thermal energy. Unlike the sensible heat storage method, the latent heat storage method provides much higher storage density, with a smaller temperature difference between storing and releasing heat. The calculations have been conducted on the basis of solar water heating system with paraffin tank. The results have been shown on the diagrams providing the paraffin temperature fall versus time for the average water usage and the supplying cold water temperature raise.
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